Tecnare Sound Systems T-48 Series, T-44 Series, T06-48, T10-48, T20-44 Operating Manual

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Operation Manual

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Version 2 (Firm. 1.258 and above)

Available

T-44/48 Series

Advanced System Ampliﬁer

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Page 3

T-44/48 Series Amplifier

Operation Manual

IMPORTANT SAFE INSTRUCTIONS

Before using the device, be sure to carefully read the Safe Instructions. Keep this document with the device all time.

1 Read these instructions.

2 Keep these instructions.

3 Heed all warnings.

4 Follow all instructions.

5 Do not use this apparatus near water.

6 Clean only with dry cloth.

15 Use the mains plug to disconnect the device

from mains.

17 Do not expose this equipment to dripping or

WARNING: To reduc e the risk of fire of

electric shock, do not expose this device to rain or moisture.

splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.

7 Do not block any ventilation openings. Install

in accordance with Exel Ac oustics’ instructions.

8 Do not install near any heat s ources such as

rad iators , heat registers, stoves or other apparatus (including amplifiers) that produce heat.

9 Do n ot def eat t he safety pu rp os e of the

polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug had two blades and a third grounding prong. The wide blade or the third prong are provided f or your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10 Protect the power c ord from being walked on

or pinched particularly at plugs, convenienc e receptacles and the point where they exit from the appar atus.

11 Only use attachments / accessories

specified by the manufacturer.

12 Use only with the cart, tripod, bracket or

table specified by the manufacturer, or sold with the apparatus. W hen a cart is used, use caution when moving the cart / apparatus combination to avoid injury from tip-over.

18 The mains plug of the power supply c ord

shall remain readily operable.

19 Do not connect the unit’s output to any other

voltage source, such as battery, mains source, or power supply, r egardless of whether the unit is turned on or off.

20 Do not remove the top (or bottom) c over.

Removal of the cover will expose hazardous voltages. There are no user serviceable part inside and removal may void warranty.

21 If the equipment is used in a manner not

specified by the Exel Acoustic, the protection by the equipment may be impaired.

13 Unplug this apparatus during lightning

storms or when unused for long periods of time.

14 Refer all servicing to qualified service

personnel. Service is required when the apparatus has been damaged in any way, such as power-supply cord or plug damaged, liquid has been spilled or objects have fallen into the apparatus, this apparatus has been exposed to r ain or moisture, does not operate normally, or has been dropped.

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Dangerous voltages; risk of

electrical shock

Important operating

instructions

Pour indiquer les risques

dangereuses

Wichtige Betriebsanweisung

sanleitung

Presencia de voltajes

peligrosos

Importantes instrucciones

operativas

SYMBOLS USED

T-44/48 Series Operation Manual

resultant de tensions

Warnung vor gefährlicher

elektrischer Spannung

Pour indequer important

Instructions

oder Gebrauchsanleitung

Frame or chassis Protective earth ground

Masse, chassis Terre de protection

Rahmen oder Gehäuse Masse Schutzleiter

Masa o chasis Puesta a tierra

SAFETY WARNING

Permanent disconnection from the mains supply is to be achieved by removing the supplied cord connector from the back of the unit.

Do not remove any covers, loosen any fixings or allow items to enter any aperture.

Objects filled with liquids should not be placed on this apparatus.

Replace the mains fuse only with a fuse of the same type

The rear of the product may get hot. Avoid direct skin contact during operation and for at least 5 minutes after power has been isolated.

AVERTISSEMENT DE SECURITE

Pour déconnecter l'appareil de l'alimentation principale de façon permanente, débranchez le connecteur du câble fourni à l'arrière de l'appareil.

Ne retirez pas les couvercles, ne desserrez pas les fixations et ne laissez aucune pièce s'introduire dans les ouvertures.

Ne placez pas d'objets contenant du liquide à proximité de l'appareil.

Ne remplacez le fusible de réseau principal que par un fusible du même type.

Le radiateur arrière de cet appareil devient chaud. Evitez tout contact direct avec la peau pendant le fonctionnement et au moins 5 minutes après la mise hors tension de l'appareil.

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T-44/48 Series Amplifier

PRECAUCIONES DE SEGURIDAD

Para la desconexión permanente de la red eléctrica es necesaria la desconexión del cable suministrado de la parte posterior de la unidad

No retire ninguna cubierta ni afloje tornillos. No permita que entre nada en el interior del dispositivo.

No coloque sobre él objetos que contengan líquidos ni lo exponga a la lluvia o humedad.

Reemplazar el fusible principal sólo por un fusible del mismo tipo.

La parte posterior del dispositivo puede calentarse. Evite el contacto directo con la piel durante el funcionamiento del dispositivo y durante, al menos, 5 minutos después de la desconexión eléctrica.

Operation Manual

STANDARDS

FOR CUSTOMERS IN EUROPE

This product complies with both the LVD (electrical safety) 73/23/EEC and EMC

(electromagnetic compatibility) 89/336/EEC directives issues by the commission

of the European community.

Compliance with these directives implies conformity with the following European standards:

EN60065 Product safety EN55103-1 EMC emissions EN55103-2 EMC immunity

This product is intended for the following electromagnetic environments: E1, E2; E3 & E4.

THIS PRODUCT MUST BE EARTHED. Use only a flexible cable or cord with a green and yellow core which must be connected to the protective earthing terminal of a suitable mains plug or the earthing terminal of the installation. The cord must be a maximum of 2m long, have a

2.5mm

THIS PRODUCT IS DESIGNED FOR PERMANENT INSTALLATION. It must be fitted in to a 19” rack enclosure and not operated unless so installed. The rack enclosure should be open at the front and back to allow free ventilation and movement of air through the product.

FOR CUSTOMERS IN THE USA

This product has been tested for electrical safety and complies with: UL60065 7th edition

THIS PRODUCT MUST BE EARTHED. Use only a flexible cable or cord with a green or green / yellow core which must be connected to the protective earthing terminal of a suitable mains plug or the earthing terminal of the installation. The cord must be a maximum of 6’ long, be 14AWG, have a rating SJ, SJT, SJE or 300/500V H05W-F and be marked VW-1.

CSA, a 300/500V rating and comply with EN50525-2-11 / H05W-F.

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T-44/48 Series Operation Manual

FOR CUSTOMERS IN CANADA

This product complies with CA /CSA C22.2 No.60065-03 Ce produit est conforme avec CA /CSA C22.2 No.60065-03

CE PRODUIT DOIT ÊTRE MIS À LA TERRE. Utilisez uniquement un câble souple avec un noyau vert ou vert / jaune qui doit être relié à la borne de terre de connecteur d'alimentation ou la borne de terre de l'installation. Le cordon doit être un maximum de 6' (2m) de long, 14 AWG (2.5mm

CSA), être classé SJ, SJT, SJE ou 300/500V H05W-F et être marquée VW-1

CE PRODUIT EST CONÇU POUR UNE INSTALLATION PERMANENTE. Il doit être installé dans un boîtier rack 19 ". Le rack devrait être ouvert à l'avant et l'arrière pour permettre la ventilation et le mouvement d'air libre à travers le produit .

DECLARATION OF CONFORMITY WITH CANADIAN ICES-003

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

FEDERAL COMMUNICATIONS COMMISSION NOTICE

An example of this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential and commercial installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the distance between the equipment and the receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio/TV technician for help.

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

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T-44/48 Series Amplifier

Operation Manual

DECLARACIÓN DE CONFORMIDAD

DECLARATION OF CONFORMITY

EXEL ACOUSTICS SL

CL Encinar, 282. Polígono Industrial Monte Boyal. 45950 – Casarrubios del Monte (Toledo), España (Spain).

Declara que el producto T-44/48 Series y sus respectivas opciones, cumple con la parte 15 de las reglas de la FCC.

Declare under our sole responsibility that devices in the T-44/48 Series range of products, comply with Part 15 of the FCC Rules.

La operación está sujeta a las siguientes dos condiciones

(1) Este dispositivo no puede causar interferencias perjudiciales y (2) este dispositivo debe aceptar cualquier interferencia recibida, incluidas las

interferencias que puedan provocar un funcionamiento no deseado.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

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T-44/48 Series Operation Manual

Table of Contents

IMPORTANT SAFE INSTRUCTIONS...................................................................................... 2

DECLARACIÓN DE CONFORMIDAD ..................................................................................... 6

1 Welcome and Installations instructions ...................................................................... 8

1.1 Thanks and unpacking ............................................................................................. 8

1.2 Unpacking ................................................................................................................ 8

1.3 The User Guide ........................................................................................................ 8

1.4 Mechanical installations ............................................................................................ 9

1.5 AC Power Connection ............................................................................................ 10

1.6 Audio Connections ................................................................................................. 10

2 Introduction and Key Features .................................................................................. 13

2.1 Introduction ............................................................................................................ 13

2.2 Key Features .......................................................................................................... 13

2.3 Drive Modules ........................................................................................................ 14

2.4 Overlays ................................................................................................................. 14

2.5 LIR Linear Phase Crossover Filtering ..................................................................... 15

2.6 FIR Linear Phase Equalisation ............................................................................... 15

3 Panels Interface User Guide ....................................................................................... 16

3.1 Panel Layouts ........................................................................................................ 16

4 Operation modes ......................................................................................................... 20

4.2 Input ....................................................................................................................... 26

4.3 Output .................................................................................................................... 29

4.4 Utility Page ............................................................................................................. 33

5 Hardware Function....................................................................................................... 35

5.1 Snapshots .............................................................................................................. 35

5.2 Aux Port ................................................................................................................. 35

5.3 Latency Delay ........................................................................................................ 36

5.4 Secure Mode .......................................................................................................... 37

5.5 Overlay Flush ......................................................................................................... 37

5.6 Revert to Factory Settings ...................................................................................... 37

5.7 Protection Systems ................................................................................................ 38

6 Remote control and System Engineer® Processing ................................................ 40

6.1 Quick Start Guide ................................................................................................... 40

6.2 Remote Control setup ............................................................................................. 41

7 Technical Specifications .............................................................................................. 46

7.1 Processing Block Diagram ...................................................................................... 50

8 EQ and Filter Response Graphs ................................................................................. 51

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T-44/48 Series Amplifier

Operation Manual

1 Welcome and Installations instructions

1.1 Thanks and unpacking

Thank you for choosing a Tecnare T-44/48 Series Advanced System Amplifier for your application. Please spare a little time to study the contents of this manual, so that you obtain the best possible performance from this unit.

Please spare a little time to study the contents of this manual, so that you obtain the best possible performance from this unit. Control and editing features are accessible via the front panel interface or via the included System Engineer software.

All Tecnare

If you would like further information about this or any other Tecnare contact us. We look forward to helping you in the near future.

Information and specifications are subject to change. Updates and supplementary information are available on the Tecnare

http://www.tecnare.com

Tecnare Technical Support is available at:

• (T): +34 918 170 110 - +34 918 171 001

• (e-mail): tecnare@tecnare.com

Thank you again for placing your confidence in Tecnare

products are carefully engineered for world-class performance and reliability.

product, please

website:

products.

1.2 Unpacking

After unpacking the unit please check carefully for any damage to the device or the supplied accessories. Every Tecnare product is tested and inspected before leaving the factory and should arrive in perfect condition. If damage is found, please notify the carrier concerned at once. You, the consignee, must instigate any claim. Please retain all packaging in case of future re-shipment.

1.3 The User Guide

This user manual gives a progressively more detailed description of the functions of the Tecnare T-44/48 Series Advanced System Amplifier. A pages quick reference guide is provided for those users who are experienced with this type of equipment and just need to know how to ‘drive’ the front panel. A detailed explanation of the front and rear panel controls and indicators is contained in the next section.

The final section describes each individual function or feature with annotated images explaining its use. Where appropriate, the graphical display is shown to further elaborate on the units operation.

To complete the manual a reference section is included, describing the technical performance and Mechanical drawing of the device complete with graphs of filter responses.

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1.4 Mechanical installations

431

360

482

T-44/48 Series Operation Manual

Fig. 01: Amplifier dimensions

The T-44/48 Series Amplifier system is designed to be mounted in a standard 19” rack

enclosure.

Where the amplifier is used in a fixed installation, as long as the bottom unit is supported and there are no gaps between units, it is acceptable to use only the front panel 19” rack holes when fitting it in a standard rack enclosure. If the amplifier is mounted in a mobile rack it is important that the rear is supported with a rear rack mounting kit (part number TZA1182). Damage caused by insufficient support is not covered by the warranty.

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T-44/48 Series Amplifier

To prevent damage to the front panel it is recommended that plastic cups or washers are fitted underneath the rack mounting bolt heads.

It is possible to mount multiple T-44/48 Series amplifiers without ventilation gaps between them but it is essential that an unobstructed flow of clean air is available from the front of the unit to the rear. It is important that neither the air intakes on the front of the unit or the exhaust vents at the rear are covered. Steps must be taken to ensure that hot air does not continually circulate through the amplifiers from the back of the rack to the front.

The amplifier should never be exposed to rain or moisture during operation or storage. If the unit does come into contact with moisture, remove the AC power cord immediately and leave it in a dry and warm location to dry out.

Note that when any equipment is taken from a cold location into a hot humid one, condensation may occur inside the device. Always allow time for the equipment to attain the same temperature as its surrounding environment before connecting the AC power cord.

Operation Manual

1.5 AC Power Connection

The amplifier utilises a 32A Neutrik PowerCONTM type locking AC power connector. Use only an AC power cord with a correctly terminated PowerCON to make the connection to the mains power supply.

The amplifiers are designed to operate on 50/60 Hz AC power. The power supply sections automatically configure themselves for either 115V or 230V nominal voltage at turn on. The amplifiers will operate over an extended range of supply voltages (please refer to the technical specifications).

Note that whilst the amplifier will operate correctly at voltages indicated, the specified output power will only be achieved when operating with the stated nominal voltages.

type (NAC3FC-HC) connector

1.6 Audio Connections

1.6.1 Input Connections

For each input channel there is a female XLR-3 input connector. Even channel numbers are for Analogue inputs only. Odd channel numbers are either for Analogue inputs (when in Analogue input mode) or for AES3 input pairs (when in AES3 input mode).

• The HOT, + or ‘in phase’ connection should be made to pin 2 of the XLR connector.

• The COLD, - or ‘out of phase’ connection should be made to pin 3 of the XLR connector.

• Pin 1 of the XLR connectors is internally connected to the chassis.

The shield of the input cable should always be connected Pin 1 of the XLR to ensure

that EMC performance and regulations are met.

Fig. 02: Pin out assignment T-44 Analog Input/link

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T-44/48 Series Operation Manual

Amplifier output connections

Speaker +

Speaker -

Digital LINK

Buffer

Digital INPUT

AES3

AES3 Inputs

A Latching XLR-3 connector accepts two channels of AES3 digital audio. Input Impedance is 110 ohms; ensure that 110 ohm digital audio cable is used.

Fig. 03: Pin assignment T-44 Digital Input/Link

Fig. 04: Digital INPUT and LINK

Unbalanced connections

Please note that the use of unbalanced connections is not recommended, however when connecting the amplifier to an unbalanced audio source, the signal conductor should be connected to XLR pin2. The ‘Cold’ conductor or cable screen should be connected to XLR pin 1 with a short connection made between pin 1 and pin 3 as shown in Figure 3.

Fig.05: Balanced to Unbalanced Analog Wiring and Pin Out

1.6.2 Audio Output Connections

The amplifier is fitted with one Speakon

NL4 connector per amplifier channel. The

appropriate conductor terminations are shown below and on the rear panel of the unit.

Fig. 06: Amplifier Output Normal connexion

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T-44/48 Series Amplifier

Amplifier output connections – Bi Amp

Speaker1 +

Speaker1 -

Speaker2 +

Speaker2 -

Amplifier output connections – Bridge

Speaker +

Speaker -

and T-48

Operation Manual

The SpeakonTM NL4 connector for amplifier channel 1 carries the output for amplifier

channels 1 and 2. Similarly, the Speakon

NL4 connector for amplifier channel 3 carries the output for amplifier channels 3 and 4. This can be useful for making a connection to two loudspeakers with one 4-core cable (i.e. Bi-Amp):

On the T-48 model, all output are Bi-Amp; each Speakon

connector carries two amplifier

outputs – Channels 1&2, Channels 3&4, Channels 5&6 and Channels 7&8.

Fig. 07: Amplifier Output Bi-amp connexion (CH1 & CH3) and T-48 models

In addition, the channel 1 or channel 3 connector can also be used if the pair of amplifier

channels is being operated in bridged mode.

Each output of the device can be configured to drive either a low impedance load (LOW-Z), or a Constant Voltage (CV) such as 25V LINE, 70V LINE or 100V LINE using the CV parameter in the Output menu which determine the maximum RMS voltage that the amplifier will produce. Select the one which is appropriate for the installation. A number of low impedance settings (depending on the model) are also available. Although it is not critical that this setting matches the impedance of the connected load, this will maximise the power that is available for the load.

Fig. 08: Amplifier Output Bridge connexion (CH1 & CH3)

1.6.3 Load Matching / 100/70/25V Line operation

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T-44/48 Series Operation Manual

2 Introduction and Key Features

2.1 Introduction

The Tecnare T-44/48 Series Advanced System Amplifier represents current state-of-the-art technology in several areas. This product is the result of several years of research, from which many advances in switched mode power technologies and ever finer detail in signal processing have stemmed. Taking advantage of the latest advances in analogue to digital conversion technologies, the unit achieves performance levels among the very best that engineering permits.

Below is a list of key features, followed by some information on the major advanced features of the product.

2.2 Key Features

• Four channels of sonically pure Class D amplification

• Very high power density packs four channels and 20kW into just 2U of rack space

• Packed with robust protection and monitoring systems to keep the show going

• External Breaker Protection (EBP) limits the current draw to prevent breakers opening

• Linea Research minimal signal path design

• Class leading sonic performance achieved by the use of state of the art Amplifier

technologies and highly advanced DSP algorithms using Linea Micro Detail (LMD)

• 96 kHz sampling frequency provides for a nominally flat response beyond 40 kHz.

• Rotary encoders, illuminated buttons and graphical display provide a rapid, intuitive

and user-friendly control interface

• High speed Ethernet communications supporting DHCP, static-IP and auto-IP and

direct connection to a computer without the need for a router or a switch

• Powerful Drive Module concept, abstraction from device centric to speaker based

control

• Innovative Component Presets to allow individual outputs to be used for selected

drivers of a loudspeaker system

• Twelve layers of Parameter Overlays for trouble-free Grouping

• Unique VX limiter providing dynamic control for passive 2-way enclosures

• Unique LIR linear phase crossover shapes giving FIR-like performance without the

drawbacks

• Linear phase HF system EQ profiling which provides perfect integration between

enclosures

• Innovative excursion control limiter with sliding High Pass Filter; limits only the

damaging low frequencies

• Transducer thermal modelling provides regulation limiters, addressing long term

overload

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T-44/48 Series Amplifier

Operation Manual

• Overshoot limiter governs amplitude of transient signals retaining average power

whilst constraining peak energy

• Dante audio networking with automatic fallover to Analogue or AES3

• AES3 inputs

2.3 Drive Modules

The 44/48 Series processor has a new way of ordering and grouping channels in order to give a more speaker-based approach to controlling, designing and recalling speaker configurations; these are called Drive Modules. A Drive Module is the Processing provided by one Input DSP Block, and a number of Output DSP Blocks, which are associated with oneanother by means of routing. For example, if Input DSP Block B is routed to Outputs 3 and 4, then this is a 2-way Drive Module with Input DSP Block B forming the ‘Master’ control, and Output DSP Blocks 3 and 4 providing the driver-related control. Overall, this forms the processing typically for one loudspeaker sub-system. The System Engineer Drive Module control panel for this sub-system may then be used for control and monitoring of the associated speaker.

Drive Modules may be included in Module Groups, which use the Parameter Overlay feature in the Device to achieve trouble-free Grouping in the System Engineer application.

The Presets in the Device are Drive-Module centric, and are used to configure individual Drive Modules rather than the whole device.

Importantly, Drive Modules move the focus away from the processing device, and onto the loudspeaker systems.

A Drive Module Preset may be broken apart into Components, allowing any output to be used for any component within a Drive Module Preset (i.e. any driver in a loudspeaker subsystem).

Overview of Modules

See

2.4 Overlays

When the Device is used in Modules view in System Engineer, this allows the modules to be grouped into Overlay Groups. These groups allow various Input (master) parameters to be adjusted in all modules in that group, whist maintaining independent parameter values across each group. This is achieved in the device by combining the parameters for all the layers for a given section (Gain Delay, EQ etc.). When an Overlay parameter is active, the Overlay indicator will become illuminated. The combined Gain or Delay etc. associated with a given section is shown on the module panel in System Engineer, within square brackets [ ] under the Delay and Gain for each input channel. The combined EQ curve is shown in an olive colour. The Input Mute button in System Engineer will flash if an overlay mute is active. On the device, the presence of an active overlay is generally indicated by square brackets “[]” after the parameter value on the display.

An input overlay mute is indicated on the mute/clip indicator for that channel flashing. Note that overlay parameters cannot be adjusted on the Device itself; these can only be controlled by the System Engineer application. However, overlay parameters may be removed on the device – see

carried in settings files.

Overlay Flush

page 37. Note that overlays are not stored in presets or snapshots or

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T-44/48 Series Operation Manual

100 1.10

1.10

24dB/Oct

LIR (Linear Phase)

Frequency, Hz

Magnitude, dB

2.5 LIR Linear Phase Crossover Filtering

The T-44/48 Series also includes a new type of crossover filtering “Linea Impulse Response” (LIR) crossover filtering, which gives a Linear Phase crossover that has a constant

delay regardless of frequency (unlike other types of crossover which delay different frequencies to a different extent, thus smearing the arrival time). The LIR crossover can thus be described as having a flat Group Delay response, and thus entirely free of Group Delay Distortion.

The shape of the LIR crossover filter is quite similar to a 4 filter, and maintains zero phase difference between the adjacent bands across the crossover region to keep the polar response rock steady. See Figure 09.

order or 24dB/Oct Linkwitz-Riley

Figure 09: LIR Filter

2.6 FIR Linear Phase Equalisation

The Input High-Shelf Equalisers use Finite Impulse Response (FIR) filtering to produce Linear Phase equalisation; that is all frequencies are delayed by the same amount, perfectly preserving the transient response. This can also be important in applications where different amounts of EQ are applied to different parts of a speaker cluster, such as to add 'Throw' EQ boost so that parts of cluster which are throwing further can have HF absorption correction added. If this EQ is not linear phase, then the zones where the speakers combine may suffer frequency response anomalies.

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T-44/48 Series Amplifier

1- Input

Indicators

2 - Page

Buttons

4 – Status

3 – Parameter

Indicators

6 – Driver Indicators

12 – Limiters

5 – Amplifier

Indicators

7 – Power

8 – Menu

9 – Graphical

10 – Output

11 – Bridge

Operation Manual

3 Panels Interface User Guide

Signal

switch

Buttons

Selecti on

Encoders / Selection

display

Figure 10: Front panel schema

Mute Buttons

Indicators

Indicator

3.1 Panel Layouts

The front panel of the Device of T-44 Series amplifiers is a combination of buttons together with the LCD display allows the user access to detailed information and complete control over the amplifier’s status. This chapter illustrates all the functions and settings accessible via the amplifier front panel.

All the setup and setting functions described in this chapter can be also accessed via computer with System Engineer

3.1.1 Front Panel

software.

 Input Signal Indicators

A set of five indicators show “Sig”, “-12”, “0dBu”, “+6” and “+12” and “Clip (mute)” for each of the DSP inputs “A” “B” “C” “D”. The signal present Indicators operate at approximately –40 dBu. The “0dBu” indicators are intended to show nominal operating level and can also be useful for setting system gain structure. The Clip/mute Indicators- warn the user of input overload and operate at 1dB before clip. This indicator also shows a muted input. Input mute is turned on/off in the <INPUT/DSP> gain page. This indicator will also flash regularly if a Module Group has muted this channel.

 Page Selection Buttons

When one of the buttons <INPUT/DSP>, <OUTPUT> or <UTILITY> is illuminated, the up <> and down <> arrows will also illuminate, informing the user that these buttons may be used to scroll through the various pages of parameters that may be viewed and edited. The <ENTER> button is used to confirm an operation such as storing or recalling a preset or snapshot. It will illuminate when the user is being invited to press it. It will flash when warning the user that pressing this button will activate an important function.

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T-44/48 Series Operation Manual

 Parameter Encoders

Two velocity sensitive parameter encoders are used to adjust parameters shown on the display. Up to three parameters at a time are displayed on the screen. The parameter name is shown above the parameter value in each of the three screen sections. Use SELECTS to highlight the parameter, and then ADJUST to change it.

 Status Indicators

The “OVERLAY” indicator shows when there are parameters activ e on a group layer, which the user cannot access through the front panel of the device (see Overlay Flush). The “NETAUDIO” indicator shows that a networked digital audio card is installed and routed (Such as Dante™ or AVB™). The “ONLINE” indicator has three states:

Off: the unit is offline and not connected to a computer or network.

Flashing: the unit is searching for an IP address; if the unit does not find an IP address the unit

will assign itself an IP address automatically and the indicator will stop flashing.

On: the unit is online and connected with software. IP settings can be viewed or changed within the <UTILITY> pages.

The AES3 IN indicator illuminates when one or more of the inputs is using an AES3 Source

 Amplifier Indicators

This indicates when the amplifier protection systems are reducing the gain to keep the parameters of the amplifier within specification, or that the channel is clipping.

 Driver indicators

This indicates a signal 6dB higher than the limiter threshold, or when the threshold of the excursion limiter has been exceeded, or when the thermal limiter is active, protecting against long term thermal stress. Please note that because of the long release time of the thermal limiter, this indicator may remain illuminated for several seconds after signal on that channel is reduced.

 Power Switch

Applies mains power to the device. If the device has entered Sleep mode, it may be woken up again either from the System Engineer application, or by switching this switch off, then on again.

 Mute Buttons

There are three buttons to determine which section of the device to view or edit. The <OUTPUT> button displays pages of parameters associated with a particular output channel. The <INPUT/DSP> button displays pages of parameters associated with a particular input socket or input DSP channel. Pressing <INPUT/DSP> or <OUTPUT> buttons repeatedly will scroll through the inputs/outputs of the processor. After the last channel, navigation returns to the Home screen. The <UTILITY> button displays pages of miscellaneous parameters not associated with any particular channel. Whilst in Edit mode, one of these three buttons will be illuminated. They are mutually exclusive – pressing one of the buttons will deselect any others that are active. Pressing Utils will escape back to the Home screen.

 Graphical Display

When the device is switched on, it will show the default screen. This provides a useful overview of channel allocation and Drive Module presets.

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8- Power Inlet

4- Optional

Audio Port

6- Aux Port

1 – Loudspeaker

2- Audio Input

3- AES3 Audio

Connectors

7- Relay

1 – Loudspeaker

5 –Ithernet port

Operation Manual

▪ The device name ▪ The user-selected names for DSP inputs ▪ The routing between physical inputs and physical outputs ▪ The IP address when the device is in static IP mode

The screen contrast can be changed by pressing the <UTILITY> button to navigate to “Screen” and using encoder to change the percentage; this can also optimise the viewing angle. In most pages the currently selected channel and parameter information is displayed on the upper part of the screen and the parameter value on the lower part of the screen.

 Output Mute Buttons

DSP output mute status is indicated and controlled by and illuminated button for each channel. These flash when the entire unit is muted from the AUX port or from System Engineer Mute-All, or if this channel has been muted by the protection systems.

Bridge indicator

This will illuminate when the channel pair is in Bridge mode. The controls for the left channel of the pair will determine the settings. See

Bridge Mode

Limiter Indicators

The output indicators show the status of the limiter and output level. The level indicated is that before the limiter, referenced to the limiter threshold. The <SIG> indicator shows signal presence and will illuminate when a signal is present in the output. The second indicator <6dB> shows that the signal has reached 6dB below the limiter threshold. The third <LIMIT> indicator signals that the threshold of that output channel has been reached.

3.1.2 Rear Panel

All signal input and output connections are located on the rear panel.

These include analog and digital (AES3) signal input and link output for each channel.

Loudspeaker output is supplied with NL4 output connectors.

An Ethernet connector allows connection to a remote computer running the “System Engineer” software. Also, we can see the Networked Audio port, Ethernet, auxiliary port, and power connection.

Connectors (T -48)

Connectors (T -44)

Connectors

Networked

output

Figure 11: Rear panel schema

Input

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 Loudspeaker Connectors

The amplifier NL4 Speakon CH1 also carries the (duplicated) loudspeaker output for channel 2 on terminals 2+ and 2-. Similarly, CH3 carries the loudspeaker output for channel 4 on terminals 2+ and 2-. For Bridged mode, use terminals 1+ and 2+ of either CH1 or CH3.

outputs. Connect the loudspeaker to the 1+ and 1- terminals.

 Audio Input Connectors

All audio connections are fully balanced and wired: pin-1 to ground (as required by the AES48 standard), pin-2 hot & pin-3 cold

 AES3 Audio Input connectors

For inputting Digital Audio signals. The Input is fully balanced and wired: pin-1 to ground, pin-2 data+ & pin-3 data. The Link connector allows a buffered AES3 signal to be passed on to another device.

 Networked Audio Port

The Tecnare T-44/48 Series Amplifiers has the option for networked audio ports; if none are required a blanking plate will be fitted. There are several options for networked audio including Dante™ and AVB™. For a full list please consult http://www.tecnare.com or your vendor.

 Ethernet Communications Port

Tecnare T-44/48 Series Amplifiers may be controlled entirely from another controller, typically a Personal Computer, running an application that is compliant with the ObCom standard such as System Engineer. Connection will normally be made to the controller via this Ethernet port connector with shielded Cat-5e cables. This port is also used for updating the firmware in the unit.

 Auxiliary Port

The auxiliary port may be configured to recall snapshots or apply muting.

 Relay output

This isolated relay output may be used to indicate abnormal conditions to external monitoring apparatus. See

Fault Relay

Power Inlet



The unit should be connected to a suitable mains electricity supply using an earthed PowerCON® 32A (NAC3FC-HC) connection power lead. The device has a switch mode power supply that is capable of operating with a nominal mains voltage of 100V to 230V, 50/60Hz without re-configuration.

NOTE: The device must be earthed to a suitable power earth; failure to do so may affect performance and/or operation and will invalidate warranty and could be potentially hazardous.

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DSP Input A

Output 1

Output 2

Input

component

parameters

Output component parameters

Operation Manual

4 Operation modes

This chapter provides comprehensive information on T-44/48 Series operation. The detailed information included here is essential to realizing the full functionality of T-44/48 Series amplifiers. The user can choose to control of T-44/48 Series amplifiers from the front panel or remotely via System Engineer directionally.

4.1.1 Operation Precautions

Make sure that the Power switch on T-44/48 amplifier’s front panel is either OFF before

making any input or output connections.

Ensure no input signal is present when powering on the T-44/48 amplifier to reduce the

risk of any inadvertent bursts of high level audio.

4.1.2 Starting up the unit

When power switch is switched on the unit will go through its start-up cycle, checking all the sub-systems as it does so. Along the way, the screen will inform you of its progress. Once this is complete the display will then show the Home screen indicating drive module configurations.

4.1.3 Overviews of the Modules, Preset, and Snapshots

A Drive Module represents a loudspeaker subsystem (e.g. Sub and Composite), and comprises one input channel and a number of output channels, associated with one-another by routing. The size of the Drive module is determined by the number of outputs in it. The device may contain up to four Modules.

control software, as they are interactive and communicate bi-

Fig. 12: Drive Module

A Module Preset is a collection of settings (parameters) for a Drive Module of a particular size. The Preset contains a set of parameters for one input and a set of parameters for each of the outputs in the module. When a Module Preset is recalled, it will automatically change the routing between Input DSPs and Outputs, consuming a number of outputs according to the size of the Drive Module. Recalling a Module Preset thus always creates a

Drive Module with consecutive outputs.

Fig. 13: Module Preset

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Output

component

parameters

Input

parameters

Output

component

parameters

Component

Device

Settings

Input A component number

Input B component number

Input C component number

Input D component number

Output 1 component number

Output 2 component number

Output 3 component number

Output 4 component number

Device

Settings

Input A component number

Input B component number

Input C component number

Input D component number

Output 1 component number Output 2 component number Output 3 component number Output 4 component number Output 5 component number Output 6 component number Output 7 component number Output 8 component number

A Component is a collection of settings (parameters) for one (input or output) channel. Any one of the output components in a Module Preset may be recalled to any individual output.

Fig. 14: Component

These concepts are depicted in the System Engineer application as in the following example of a 2-way Module:

Fig. 15:

A Snapshot is a device-wide representation of most of the settings in the device. This is represented as four Input Component numbers, four Output Component numbers, plus a number of machine-centric settings such as routing and Input/Output Analogue/Digital selection etc.

System Engineer 2-way module

Fig. 16: Snapshot

4.1.4 Navigation

Parameter navigation and adjustment on the T-44 Series is very straightforward. There is no concept of drilling down deeper into hidden menus; every parameter is accessible by simply scrolling across a ‘map’ of parameter pages which can be thought of as placed on a 2dimensional grid. Horizontally across the width of the grid are the various channels, and vertically up and down the grid are the parameter pages for each section of processing.

To view a parameter, repeatedly press the desired <INPUT> or <OUTPUT> channel button until the desired channel is reached. Then repeatedly press the up <> and down <> buttons to scroll through the processing parameters for the selected input/output.

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Turn the SELECT encoder to highlight the zone you wish to adjust.

Turn the ADJUST encoder to change its value.

DSP

Physical

Outputs assigned

Input

Devic e

Operation Manual

Two encoders allow you to select and adjust a parameter. Often, several parameters will be shown in various zones on the display. To select a parameter for adjustment, turn the right-most encoder such that the parameter you wish to adjust is highlighted. Then turn the leftmost encoder to adjust the value of that parameter. Turning this encoder clockwise will increase the value of a parameter, or anticlockwise will decrease it. The encoders are velocitysensitive so turning an encoder rapidly will cause the action to ‘accelerate’, so the value changes more rapidly.

4.1.5 The Home Page

The Home Page presents an overview of the configuration of the device. It indicates the user-define Device Name at the top, and shows the four

Drive Modules

. In each Drive Module the top line shows the Input DSP channel (‘A’, ‘B’ etc), and the name the user has given to this channel. The bottom line shows the physical input number, and a list of the outputs which are routed from the Drive Module.

Fig. 17: The Home page Screen

4.1.6 Drive Module

The T-44 Series uses Drive Modules to represent loudspeaker sub-systems. Drive modules result in a less processor-centric and more speaker-orientated system design. A drive module is defined as the processing provided by one Input DSP, and a number of outputs, which are associated with one-another by means of routing. For example, if Input DSP B is routed to outputs 3 and 4, then this is a 2-way Drive Module; input DSP B forming the ‘master’ control, and output DSP 3 and 4 providing the driver-related control. The Input DSP parameters then control the Drive Module (and thus the speaker sub-system). The Drive Module control panel in the System Engineer application is then used for control and monitoring of this subsystem.

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4.1.7 Drive Module Preset

Presets do not change the settings device-wide, such as analog / digital channel configuration or input routing. Rather, recalling a Module Preset creates a Drive Module by consuming a number of consecutive outputs and setting up routing between the Input the preset was recalled on and those outputs. The parameters in that Drive Module are then set according to the parameters in the components in the Module Preset.

Note: Module presets only work with consecutive outputs. Modules with non-

consecutive outputs can be created by manually manipulating the routing, and then

recalling Component Presets to the individual outputs. The resulting system can then

be stored in a Snapshot.

Note: When a Module Preset Recall consumes outputs to construct a module, it treats a

pair of Bridged outputs as a single channel, so recalling a 2-way Module Preset will

consume 3 output channels if a Bridged pair is encountered. See Bridge Mode

Note: DSP inputs “A” to “D” are not the same as physical inputs “1” to “4”. The T-

44/48 Series has four audio inputs and four DSP inputs. This is a matrix mixing system

where any physical inputs, be they analogue, AES3 or networked audio feeds, can drive

any number of DSP inputs.

4.1.8 Component Preset

A Component Preset represents the processing for just one output. Any part of a Module Preset may be recalled to any one output. A Drive Module comprised of parameters which have been recalled to its outputs using Component Preset Recalls can then be saved into another routing manually). If the routing has been changed manually, then the whole arrangement may be saved into a

loudspeakers.

remainder of the parameters are available for user manipulation. The number and type of hidden parameters is dependent on the Factory Preset, typically crossover frequencies, output delay and some EQs are hidden; those settings that are a function of the loudspeaker cabinet design and should not require adjustment for different applications. Factory Presets are locked (as indicated by a ‘box’ () symbol after the Preset name) so they cannot be over-written. The user can, however, store an edited version of a Factory Preset in any free preset location.

on page 36.

the overlay parameters. See Overlay Flush on page 37.

Module Preset

Snapshot. Also see Snapshots and Recalling Components.

4.1.9 Factory Module Preset

The device may contain a library of Factory Presets designed to suit Tecnare

Factory Presets may contain some parameters that are fixed and hidden from view; the

4.1.10 Key shortcuts

The T-44/48 Series amplifier has key shortcuts to trigger specific functions.

ENT Press <ENTER> during 5 seconds to lock or unlock the screen. See Secure Mode

UTIL+ENT Press the key combination <UTILITY>+<ENTER> during 5 seconds to flush

provided the outputs remain consecutive (i.e. you have not changed the

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UTIL

IP CURR

STEREO

POWER

SAVE

EBP

SCREEN

AUX

STYLE

EQ BW

IP MODE

STATIC IP

KEY

MENU PAGE

MENU BUTTON

CHANNEL NO.

UP/DOWN BUTTON PRESS

MENU BUTTON PRESS

HOME

SCREEN

RECAL

SNAP

CH B CH CCH A CH D

FIR/ FIR/FIR/ FIR/

EQ6 EQ6EQ6 EQ6

EQ5 EQ5EQ5 EQ5

EQ4 EQ4EQ4 EQ4

EQ3 EQ3EQ3 EQ3

EQ 2 EQ 2EQ 2 EQ 2

EQ 1 EQ 1EQ 1 EQ 1

EQb\ EQb\EQb\ EQb\

EQa\ EQa\EQa\ EQa\

HPF HPFHPF HPF

DEL DELDEL DEL

GAIN GAINGAININ GAIN

RECL RECLRECL RECL

STOR STORSTOR STOR

IN ININ IN

ROUT ROUTROUT ROUT

LATEN LATENLATEN LATEN

HOME

Operation Manual

4.1.11 Menu maps

Input Menu Map Utility Menu Map

Fig. 18: INPUT/DSP and UTILITY menus

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CH 2 CH 3

CH 1 CH 4

EQ 8 EQ 8EQ 8 EQ 8

EQ 7 EQ 7EQ 7 EQ 7

EQ 6 EQ 6

EQ 5

EQ 5EQ 5 EQ 5

EQ 4 EQ 4EQ 4 EQ 4

EQ 3 EQ 3EQ 3 EQ 3

EQ 2 EQ 2EQ 2 EQ 2

EQ 1 EQ 1EQ 1

EQ 1

EQ \ EQ \EQ \ EQ \

LPF LPF

HPF

HPFHPF HPF

DEL DELDEL

DEL

GAIN GAIN

GAINOUT GAIN

RECL RECL

ROUT ROUTROUT ROUT

LIM LIMLIM LIM

TMAX TMAX

XMAX

XMAXXMAX XMAX

AMP AMPAMP AMP

EQ /

EQ /EQ / EQ /

HOME

Output Menu Map

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T-44/48 Series Amplifier

A STOR Preset Name

SUBS

2 X 18 BASS

A RECL Preset Name

SUBS

2 X 18 BASS

Operation Manual

4.2 Input

4.2.1 Storing Module Preset

Once a drive module has been created it can be stored by pressing the <INPUT> button until the edited channel is reached, then pressing the down <> button until store page is reached. Using “ADJUST” encoder will change the preset number. When the destination preset is reached, pressing the <ENTER> button will enable the name associated with that preset to be changed. Once the name changing is active, the character to be changed will be highlighted and the “ADJUST” encoder will edit the character. Using the “SELECT” encoder will move through the character positions. Once the new preset name has been assembled, the operation can be confirmed by pressing the <ENTER> button, then a message will be displayed, “Enter to confirm or  to exit”; pressing <ENTER> will store the preset.

Fig. 20: Store module Screen

Note: Storing a Drive Module preset for a module which is not configured with

consecutive outputs is not permitted.

Note: When storing a Drive Module preset on the device, Component Names cannot be

edited. To change Component names, the Module Preset must be saved in the System

Engineer application.

4.2.2 Recalling Module Preset

To recall a Drive Module preset, press the <INPUT> button, then use the down <> button navigate to the RECL Preset page. Using the “ADJUST” encoder will scroll through the presets available. When the desired preset is reached, pressing <ENTER> will display the message “Enter to confirm or  to exit”, pressing <ENTER> will recall the preset. Note that presets do not contain and do not disturb parameter Overlays. See

Overlays

on page 14

Fig. 21: Recall Module Screen

4.2.3 AES3/ Network Inputs

In addition to the usual analogue inputs, the Device can also accept AES3 digital inputs. When a DSP input channel is assigned to an AES3 channel, the “AES3” indicator will illuminate.

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There is no ‘standard’ for the relative gains between Analogue and AES3 so depending on the levels delivered by the audio source, it may be necessary to adjust the digital input gain trims to normalise them. It is possible to adjust the gain of the AES3 input using the Input Route AES3 Gain parameter. For example, to achieve 0dBFS = +18dBu, set the AES3 trim to -2dB.

To achieve 0dBFS = +24dBu, set the trim to +4dB.

This device will automatically lock onto any sample rate within the range 28kHz and 108kHz.

4.2.4 Networked Audio (Dante

) Inputs

When the Digital Audio Network option is fitted, it is possible to select any channel(s) as being sourced from this network. To do this, connect the audio network connection to the connection on the rear of the T-44/48, and set the relevant Input Route menu Source parameter to “Dante” (for example.)

When the Digital Audio Network input is installed and routed, the “Net Audio” indicator above the encoders will illuminate. This indicator will come on even if there are no cables plugged into the networked audio port on the T-44/48. As for the AES3 inputs, it is possible to set the relative gain between an Analogue input and the signals sourced from the Digital Audio Network (Dante

) using the Input Route Dante gain parameter.

The amplifier will automatically select the correct sample rate from the incoming stream.

For other details on the operation of the Digital Audio Network, please refer to the relevant manufacturer’s documentation.

4.2.5 Automatic Input Selection (Fallover)

It is possible to configure the input selection to be automated. The Input TYPE screen has a Fallover parameter, which defaults to Manual, allowing you to select what Type of input you wish to use. When Fallover AES3>Analogue is selected (on an input channel which supports AES3), then the AES3 source will be automatically selected if it has a valid audio stream on it. If the AES3 stream should fail, then Analogue is automatically selected instead.

When Fallover Dante>Analogue is selected (when the Dante option is fitted), then the Dante source will be automatically selected if it has a valid audio stream on it. If the Dante stream should fail, then Analogue is automatically selected instead.

Similarly, it is possible to select Fallover Dante>AES3 on a channel that supports AES3 and the Dante option is fitted.

The ‘Auto’ setting allows the highest priority input source that is active to be automatically selected, so the user could just plug a source into any input and it will be automatically selected. The priorities are: Dante first, AES3 second, Analogue third.

Note that any automatic selection will take precedence over manual selection, so if you try to manually select Dante when there is no valid Dante stream, then it will revert to the fallover input source.

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GAIN

Gain

Pol

Mute

Preset1

0.0dB

Norm

4.2.6 Gain and polarity

Operation Manual

The gain page of the input channel selected allows users to increase or decrease the amount of signal going into the selected input. Using “SELECT” encoder to highlight the Gain value allows the value to be changed by the “ADJUST” encoder in 0.2dB steps from -40dB to +20dB. The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol (See Overlays). This page will also allow users to change the polarity of the selected input from normal to reverse and to mute the selected channel.

4.2.7 Delay

The delay page which controls the amount of delay associated with the input channel selected and is adjustable from 0 to 998ms. The delay parameter is adjustable in fine steps at low values; the adjustment becomes progressively coarser as the value increases. The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol. See Overlays on page 14.

4.2.8 High Pass Filter

System high pass filtering is provided for the input signal. Filter type is selectable from

order, Butterworth, Bessel, Linkwitz-Riley and Hardman. Filter slopes of up to 4th order or

1 24dB / octave are provided. Not all filter types are available in all slopes. For example 18dB / octave Linkwitz-Riley filters do not exist.

The Hardman type filter is always described by its’ order as the filter becomes progressively steeper rather than following a linear slope so a dB/octave description is not accurate.

4.2.9 Parametric Equalization

There are nine stages of equalisation available for each input channel, three shelving filters and six parametric filters.

4.2.10 FIR Shelving EQ

The Input High Shelf EQ is implemented using a Finite Impulse Response (FIR) filter, and exhibits a linear phase response; that is all frequencies are delayed by the same amount. This can be important in applications where different amounts of EQ are applied to different parts of a speaker cluster, such as to add 'Throw' EQ boost so that parts of cluster which are throwing further can have HF absorption correction added. If this EQ is not linear phase, then the zones where the speakers combine may suffer frequency response anomalies.

Being a linear phase FIR equaliser, this necessarily introduces some latency delay, which is constant regardless of the settings. However, when the ‘Enable’ parameter is set to “Off”, it is removed from the signal path entirely, so it does not add any latency. In this page you can change the frequency parameter from 2kHz to 20kHz, enable/disable the filter, and change the cut or boost in 0.2dB increments.

The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol being appended to the Gain value (See Overlays). The filter (and its associated latency) can be completely removed by setting the enable parameter to the “Off” position. Note that this EQ can only be used in Module Groups if set to ‘On’.

Also see Latency Delay on page 25.

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FIR/

Freq

Gain

Preset1

100Hz

0.0dB

ROUT

Source

AES3

Net

Preset1

Analog

0.0dB

4.2.11 Parametric Filters

Parametric filters are defined by frequency, bandwidth and gain. The frequency is adjustable over the range from 10Hz to 25.6kHz. The bandwidth shown as Width on the screen, ranges from 0.10 octaves to 5.2 octaves. Bandwidth can be shown and adjusted as Q or Octaves (Oct). Gain is adjusted in 0.2dB increments. The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol being appended to the Gain value. See Overlays

Also see Bandwidth Units in Utilities.

Also see Bandwidth Units in Utilities on page 25.

4.2.12 Routing

Routing allows users to route any physical or digital signal to any DSP input. This is a matrix mixing system where all DSPs can be driven from any one input or pairs of inputs “1+2”, “3+4”, “1+3”, “1+4”, “2+3” or “2+4””.

Summed inputs have 6dB of attenuation so that a sum of largely similar programme material remains at the correct calibrated level. When a sum input is selected, the input DSP meters show the higher of the two inputs so that indication of the onset of clipping of either input is indicated.

4.3 Output

4.3.1 Recalling Components

To recall a Component Preset (to a single output), press the <OUTPUT> button, then use the down <> button navigate to the RECL Preset page. Using the encoder, “A” will scroll through the component presets available (as indicated by the Module Preset. Component number and Module Preset. Component name). When the desired component is reached, pressing <ENTER> will flash the Enter button. Pressing <ENTER> again will then recall the component preset. Note that component presets do not contain and do not disturb parameter Overlays. See

The gain page of the output channel allows users to increase or decrease the relative signal gain for the selected output. The Gain value may be adjusted in 0.2dB steps from -40dB to +20dB. This page will also allow users to change the polarity of the selected output from normal to reverse.

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Overlays

4.3.2 Gain and Polarity

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Operation Manual

4.3.3 Delay

The delay page controls the amount of delay associated with the output channel selected and is adjustable from 0 to 998ms. The delay parameter is adjustable in fine steps at low values; the adjustment becomes progressively coarser as the value increases.

4.3.4 High and Low pass Filters

High pass and low pass crossover filtering is provided for the output signal. Filter type is selectable from 1

order, Butterworth, Bessel, Linkwitz-Riley, Hardman and LIR Linear Phase. Filter slopes of up to 8th order or 48dB / octave are provided. Not all filter types are available in all slopes. For example 18dB / octave Linkwitz-Riley filters cannot be selected because they do not exist.

The Hardman type filter is always described by its’ order as the filter becomes progressively steeper rather than following a linear slope so a dB/octave description is not accurate.

4.3.5 LIR Crossover Filtering

to Tecnare T-44 Series, “Linear Impulse Response” (LIR) crossover filtering gives a Linear Phase crossover which has a constant delay regardless of frequency (unlike other types of crossover which delay different frequencies to a different extent, thus smearing the arrival time). The LIR crossover can thus be described as having a flat Group Delay response, and thus entirely free of Group Delay Distortion, this is exactly the same as can be provided by common FIR filtering but without the complications and disadvantages inherent with the FIR technique.

The shape of the LIR crossover filter is similar to a 4

order Linkwitz-Riley filter, and maintains zero phase difference between the adjacent bands across the crossover region to keep the polar response rock steady.

Linear Phase filtering necessarily introduces delay; the laws of physics demand it. To keep this delay to a minimum, it is recommended that more conventional crossover shapes (such as Linkwitz-Riley) are used for the very lowest frequency high-pass edge, particularly if this is less than perhaps 100Hz, which is well below the frequency thought to cause audible ‘Group Delay Distortion’.

This constant delay will depend on the lowest high-pass frequency used in the crossover filters in a given Drive Module.

Also see the section on Latency Delays on page 35.

4.3.6 Parametric Equalisation and All-Pass Filters

There are ten different EQ filters; two shelving filters and eight parametric filters. Parametric filters are defined by frequency, bandwidth and gain. The frequency is controlled over the ranges from 10Hz to 25.6kHz. The bandwidth, shown as Width on the screen, is controlled ov er ranges from 0.10 octaves to 5.2 octaves. Bandwidth can be shown and adjusted as Q or Octaves (Oct). Gain is adjustable in 0.2dB increments.

Any of the six Parametric filters can be used as All-Pass filters. When a filter is set to All-Pass mode, the Gain parameter value will show as “AllPass” on the display. This setting may only be engaged by right-clicking the EQ ‘icon’ in the EQ window of the System Engineer panel.

Also see Bandwidth Units in Utilities on page 33.

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LIM

Thresh

Over

VxMode

Out_nam

20.0dB

2.0dB

Off

4.3.7 Limiters

The T-44/48 Series includes three limiters in the output signal path. Please note that whilst the Limiters in this product offer some degree of protection for amplifiers and drivers, Exel Acoustics and its Tecnare brand cannot be held responsible for any damage which might occur in these components.

4.3.7.1 VX Limiter

This is a peak-detecting signal limiter. The VX Mode parameter determines the style of limiter. When Virtual Crossover (VX) mode is off, the limiter is controlled in a conventional manner; the only controls being Threshold and Overshoot.

The Overshoot limiter prevents the signal from exceeding threshold during the attack phase of the main limiter by more than a predetermined amount. The optimal Overshoot setting is usually about 8dB. Lower Overshoot settings will sound progressively ‘harder’.

When VX mode is engaged, the user can choose the crossover point of a ‘virtual crossover’, which gives two limiters per output so the user can individually limit the drivers in a passive 2-way enclosure using individual thresholds, and optimised attack and release characteristics for each. The Threshold of the second ‘Hi’ limiter is set relative to the threshold of the first ‘Lo’ limiter.

The effect of the VX threshold and split frequency on the Limiter curve can be seen in System Engineer.

This Limiter introduces some delay. In non-VX mode, this delay will depend on the lowest high-pass frequency used in the crossover filters in a given Drive Module. In VX mode, the delay is related to the Split frequency. This delay will be applied to all of the outputs in a given Drive Module to keep them in phase.

Also see Latency Delays on page 33.

4.3.7.2 Tmax Thermal Limiter

The Thermal Limiter is intended to protect the driver against damage due to overheating. It models the temperature of the driver, and constrains the output signal level in order to keep the average output power below a predetermined limit, applying attack and release characteristics to go some way towards modelling the complex thermal circuit of a driver’s voice coil and magnet assembly.

Three parameters are available for adjustment:

Threshold – the continuous RMS voltage which the driver should be able to withstand. This is calibrated at the output of the amplifier. The Thermal Limiter can be defeated by setting the Threshold to the maximum “Off” value.

Attack – The time-constant of the speed at which the driver heats up (in seconds). Release – The time-constant of the speed at which the driver cools down (expressed as a

multiple of the Attack time).

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On Tecnare Loudspeaker Preset this protection is calibrated by Tecnare and cannot be modified. Please in case of used power amplifier different to advice of Tecnare refer to our support department for limiter setting.

4.3.7.3 Xmax Excursion Limiter

The Excursion Limiter protects the driver against excessive linear movement of the cone and voice-coil which could otherwise cause mechanical damage. Since this movement (excursion) is related to the inverse of the signal frequency, drivers are prone to being damaged by very low frequencies. This limiter is progressively more sensitive at lower frequencies and, rather than varying the gain to provide the limiting action, it uses a sliding high-pass filter to progressively curtail the low-frequency response, effectively limiting the linear excursion to below the X-max specification of the driver.

To set the limiter up, it is necessary to know the shape of the family of Excursion vs. Frequency curves of the driver for various drive voltage levels. A curve should then be chosen where the slope is high where it passes though the specified X-Max value for the driver. The peak voltage and frequency of this point should then be noted.

The Xmax limiter is then set up using just two parameters: Threshold – the peak voltage of the point arrived at above. This is calibrated at the output of the amplifier. The Excursion Limiter can be defeated by setting Threshold to the maximum “Off” value. Frequency – The frequency at which the above threshold voltage is appropriate for.

A further parameter “Min” may also be available for more advanced applications. This allows the increasing limiting action at lower frequencies to level-off below a certain frequency. In most application, this would be left set to its default value of 5Hz.

4.3.8 Bridge

When an amplifier pair is set to Bridge Mode, it uses two amplifier channels to drive one loudspeaker with greater power. In this mode, only one set of Output controls is active per pair of amplifier channels since both of the amplifiers in the pair are driven with the same signals, as determined by the channel 1 (or channel 3) controls. Bridge settings should be set up before recalling Drive Module Presets single channel.

Bridge Mode is enabled or disabled in the AMP page for a given odd numbered Output. When enabled, the Bridge indicator will be illuminated between the bridged channels.

4.3.9 Routing

Outputs can be driven from any DSP input. This routing is the fundamental means by which Drive Modules are created.

Routing should always consume outputs consecutively alphabetically and numerically. However, non-consecutive Drive Modules may be created using manual routing and Components. See the drive module section of this user manual for more information.

4.3.10 Driver

The optimal drive level may be adjusted for a given driver impedance using the Load

parameter. See Load Matching.

Operation Manual

. Module Preset Recall will see a bridged pair of outputs as a

Recalling

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The live measured impedance value is also shown on the Driver page. Since the device can only measure this when there is a signal, the impedance is indicated as “?” when there is insufficient signal level to perform a measurement.

4.4 Utility Page

4.4.1 Screen Contrast

The Screen page in the “UTILITY” section adjusts the contrast (and optimal viewing angle) of the screen f rom 0-100% in 1% increments.

4.4.2 Stereo Linking

Stereo linking is available between DSP Drive Modules A & B and between C & D. Changing a parameter in either of the stereo linked Drive Modules will change the other linked Drive Module. Stereo linking is controlled by the STEREO page in the “UTILITY” menu.

Note: Stereo linking state is not stored in Presets (but is stored in Snapshots).

4.4.3 Current Ethernet IP Address

This may be viewed in The “IP Curr” page of the “UTILITY” menu. This value cannot be edited.

4.4.4 IP Mode

The Ethernet IP address may be automatic “Auto” or may be a fixed static value “Static” as determined by the “IP Mode” page of the “UTILITY” menu.

WARNING – Do NOT use Static mode unless your IT system specifically requires it. Auto mode should always be used where possible since in this mode, the T-44 amplifier can always be ‘discovered’ by the System Engineer application. When in Static mode, a warning will flash on the Default screen.

Also see Ethernet Configurations on page 41.

4.4.5 IP Static

This allows the Static Ethernet IP address to be adjusted by the three rotary encoders on the IP Static page of the “UTILITY” menu. This will only have effect when in Static mode.

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4.4.6 Store Snapshot

This page of the “UTILITY” menu allows a Snapshot to be defined.

Also see Snapshots on the followings page.

4.4.7 Recall Snapshot

This page of the “UTILITY” menu allows a Snapshot to be recalled.

Also see Snapshots on the following page.

4.4.8 Bandwidth Units

This page of the “UTILITY” menu allows the Bandwidth of Parametric Equalisers to be viewed and adjusted in either Octaves or ‘Q’.

4.4.9 Aux Style

This page of the “UTILITY” menu allows the action of the Aux port to be viewed and adjusted.

Also see Aux Por on next the page

4.4.10 ECO Mode

This page of the “UTILITY” menu allows the device to save power by going into a low power mode when it is not being used.

Standby is a fast mode which saves some energy, but will wake-up very quickly if an audio

input is detected. The associated Standby Time parameter allows the amplifier to automatically go into power-save if no audio signal has been detected for a period of time. This function can be defeated by setting the latter control to Manual. Tecnare would strongly advise leaving it set to automatic however as there is no negative consequence to doing this since ‘wake-up’ on detecting the presence of an audio input signal is instantaneous. The Standby Now ‘parameter’ allows the amplifier to be put into standby mode manually when it is not being used.

Sleep is a deep power save mode which saves the most energy, however it will take a small

number of seconds for the amplifier to wake-up, and it may only be woken up manually (either from the System Engineer application or by switching the device off then on again). The associated Sleep Time parameter allows the amplifier to automatically go into Sleep mode if no audio signal has been detected for a period of time. This function can be defeated by setting the latter control to Manual.

4.4.11 External Breaker Protection (EBP)

The Power (“PWR”) utility page provides access to the External Breaker Protection (EBP) feature, which allows the output power to be limited in order to prevent the nuisance tripping of mains circuit breakers or fuses when the amplifier needs to be operated on a mains supply with restricted capacity. Set the EBP value to that of the circuit breaker or fuse to which the amplifier is connected.

Operation Manual

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5 Hardware Function

5.1 Snapshots

A Snapshot may be recalled either via the device User Interface, from the System Engineer application or via the AUX port on the rear of the Device.

The snapshot menu is accessed by the UTILITY pages and allows users to trigger the

recalling of a Component to each input and output, and may change other device-wide settings, effectively recalling a processor-wide preset. In addition to being able to recall snapshots from System Engineer and from the Device's front panel, some of the snapshots are also recallable from the auxiliary port. See AUX Port

The parameters inside Drive Module Presets are not individually stored in Snapshots, so recalling a Snapshot will merely trigger the recall of the appropriate Input and Output Components, rather than restoring the parameters that were active when the Snapshot was stored. This has the distinct advantage that the library of manufacturer presets may be updated without having to be concerned about what parameters might have been saved in users Snapshots. It does however require that any existing edits to Drive Modules are stored before a Snapshot is stored.

5.2 Aux Port

The AUX has two inputs, X & Y. These allow simple contact closure devices (relays or

switches) or external logic signals to change the state of the amplifier as described below.

Connecting an AUX input to ground (the earth symbol) will trigger it; there is no requirement for an external voltage. However, the ports can also be triggered directly by a logic signal as long as the logic ‘low’ goes below +0.5V. Do not connect systems if their logic

‘high’ voltage exceeds +24V.

The AUX port may be configured to work in a number of ways by adjusting the Style

parameter in the Aux page of the Utility menu

• None - No operation

• 2+Mute (Event or State) – Either Snapshot 1 or Snapshot 2 may be recalled by

applying a momentary or static connection to an Aux port terminal, or the device may be muted by Grounding both Aux port terminals

• 3 Snaps (Event or State) – Either Snapshot 1 or 2 or 3 may be recalled by applying a

momentary or static connection pattern to an Aux port terminals

• 4 Snaps (State) – One of the four Snapshots 1,2,3,4 may be selected by applying a

static connection pattern to the Aux port terminals

• 3+Mute (State) - One of the three Snapshots 1,2,3 may be selected by applying a

static connection pattern to the Aux port terminals, or the device may be mute by Grounding both Aux port terminals

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2+Mute ACTION (State or Event)

3 Snaps ACTION

(State or Event)

4 Snaps ACTION

(State)

3+Mute ACTION

(State)

Open

No Change

Recall Snapshot 1

Gnd

Open

Recall Snapshot 1

Recall Snapshot 2

Open

Gnd

Recall Snapshot 2

Recall Snapshot 3

Gnd

Mute

Recall Snapshot 3

Recall Snapshot 4

Mute

Analogue Input

OR Digital input at 48KHz sample rate

0.385 ms

0.66 ms

Analogue Output

OR Dante Output

0.402 ms

0.5 ms (TBC)

Input HiShelf FIR

0.4 ms (0ms if set to Off

LIR Linear Phase crossover

1.19ms/Fhp (kHz) limited to 30ms max1

VxLim Limiter (VX mode off)

0.12ms/Fhp (khz) limited to 1.53ms max.1

OR VxLim Limiter

0.358 ms/Fhp (kHz) limited to 9ms max2

Operation Manual

The following table shows the action taken for various Aux connection patterns in the

various Aux port modes:

AUX X AUX Y

Some of the above modes allow the AUX Port to be used:

• Either in Event mode (whereby a momentary push-button or momentary relay contact closure on one of the AUX lines will cause a Snapshot to be recalled).

• Or in State mode (where a rotary switch etc. connected to both of the AUX lines selects which Snapshot to use).

Some of the other modes only allow State mode, requiring the connection pattern to persist

in order for the Snapshot to be held as the current one.

NOTE: That if the contact closure port is being driven, or if the Aux Style is set to one of the State modes, this will override the snapshot recall setting in the menu (or in System Engineer). Also under these conditions, the snapshot menu items are not accessible, and the Home screen will show the Snapshot number as a reminder.

Also see Snapshots on this page.

5.3 Latency Delay

All Digital Signal Processing, and conversion between different formats of signal – analogue/digital/network etc, necessarily introduce some delay (latency) to the signal path. Of course, we strive to minimise these latencies. Small as they are, it is sometimes useful to know their precise values. The following describes the principal latencies introduced by various parts of the processing:

OR Digital input at 96KHz sample rate

OR AES3 Output

Important tip: The processing latency is constant at 1.53ms unless LIR crossover filters or FIR HiShelf EQs are used, so normally you would just need to add the Input and Output delays to this constant value.

0.5 ms

01 ms

This latency figure is calculated using the crossover High-pass frequency (in kHz)

This latency figure is calculated using the Vx Split frecquency (in Khz)

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Analogue Input

0.385 ms

Analogue Output

0.402 ms

Input HiShelft FIR (off)

0 ms

LIR Linear Phase crossover (500Hz)

2.38 ms

VxLim Limiter (VX mode on, 1KHzFsplit)

0.358

Total

3.525

If LIR or FIR are in use, the Processing latency of a Drive Module may increase beyond this figure. The Drive Module Latency may be viewed on the Latency page of the relevant Input DSP channel. This can be accessed by pressing <INPUT> then <▼> down until the latency page is reached.

When LIR, is used the Vx Limiter can take the overall latency above the 1.53ms. When high pass frequency is set below 40Hz the filter will automatically revert to Linkwitz riley, this is set so that the latency will not exceed 30ms as stated.

When using input FIR filters, LIR or VX Limiters always check the view latency screen to see the latency attributed to that Drive Module.

Note that the latency reported on the Latency screen in the utilities menu does

not include the Input/Output latencies. The computed latency value is displayed

in UTILITY page.

Example:

Please note that the latencies within a Drive Module are equalised among outputs of that Drive Module. That is, padding delay will be automatically added to some outputs such that the total latency is the same in each output of a Drive Module. This latency equalisation does not extend outside a Drive Module, so Drive Modules are not guaranteed to have the same latency as one-another.

5.4 Secure Mode

When activated, this will disable all the front panel controls so they cannot affect the signal path, making the unit secure against tampering. The only option that is left for user control is snapshot recall. If this is not required then storing the same device state in every snapshot will effectively disable this feature. When in secure mode, the indicators still operate normally. To activate secure mode, press and hold the <UTILITY> button for 5 seconds. To deactivate, press and hold the <UTILITY> button for 5 seconds.

When in secure mode, this will be shown on the display.

Note that the communications port is still active in secure mode.

5.5 Overlay Flush

If the device has been used in Module Groups, and still has an active Overlay (as indicated by the Overlay indicator), these can be removed by simultaneously pressing and holding for 5 seconds the <UTILITY> and <ENTER> buttons. See

Overlays

5.6 Revert to Factory Settings

If you wish to erase all of your settings in the device and revert everything to factory settings, then simultaneously press and hold for 5 seconds the Up button and the Mute 1 button, then follow the prompts on the display. Only continue by pressing the Enter button if you are sure this is what you want to do. Otherwise, press the Down button to escape. Alternatively,

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Amplifier Indicator

Driver Indicator

Notes

Limiter 6dB over

Thermal limiting

Excursion limiting

Amplifier clipping

Amplifier clip limiting

Amplifier Current limiting

Amplifier VHF limiting

PSU Current limiting

Will show on all output channels

PSU Power limiting

Will show on all output channels

Thermal limiting

Will show on all output channels

you can access this feature from System Engineer application using the ‘Hamburger’ button on the bottom-right of the device control panel, selecting ‘revert to factory settings’.

Operation Manual

5.7 Protection Systems

Comprehensive protection features preserve the longevity of the loudspeaker and amplifier by continuously monitoring several critical parameters, and reducing the gain, or muting the amplifier either temporarily or permanently depending on the nature and seriousness of the fault or misuse. The amplifier will recover and restart if at all possible, but may remain in shut down if a serious fault persists.

Limiters deal with routine over-driving of the amplifier, making sure that the driver(s) are not pushed too hard. The limiter indicators will warn you when the driver is being driven into limit.

Minor faults are dealt with by ‘dimming’ the amplifier, reducing the level to a sufficient degree and for a sufficient time that the amplifier is able to recover gracefully without any user interaction. When the fault condition has passed, the amplifier will recover automatically.

When the protection systems are reducing the level, this is indicated by illuminating the lefthand Amplifier channel protection indicator. This will also illuminate when the output voltage is ‘clipping’. This indicator will remain permanently illuminated if the channel has been muted by the protection systems. The Mute button will also flash. This will usually also be indicated by a warning message on the display.

Some types of protection affect all output channels, so you may see the Amplifier indicator illuminated, and the Mute button flash, on every channel.

Summary of Protection Indication

The reasons for the protection indicators illuminating are summarized as follows:

5.7.1 Incident Reporting

In the System Engineer application, a coloured indicator appears on a Device Bar in the System View which displays the Incident state of the device. The Incident state may be one of three states:

• Red: Fault (The device is faulty in some way and requires attention)

• Yellow: Check (The device may not be performing to its full and should be checked)

• Green: OK (The device is performing well and requires no attention)

Holding your mouse over the Incident indicator for a few seconds will show the current incident level and name.

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If an incident is reported you can disable it, and all less serious incidents, by right clicking the bar in System View and selecting ‘Enable/Disable Alarms’. Doing this will show a cross over the Incident indicator and the device will no longer report any Incidents at this level or below. If any Incidents have previously been disabled they can be enabled by using the right click context menu and selecting ‘Enable/Disable Alarms’ again.

Any active incident will be shown on the display of the device.

A Fault state will also cause the Fault Relay to open. See

5.7.2 Fault Relay

Three connections are available via the Phoenix connector for this relay. The schematic representation printed on the rear panel shows the ‘idle’ state of the relay (when the amplifier is not switched on). When the amplifier is switched on, the relay will normally energise. When a Fault incident occurs, the relay will be de-energised. This will allow either a Fault Incident or a loss of power to be seen as a ‘Fault’.

Also see Incident Reporting

5.7.3 Performance Logging

Fault Relay

The System Engineer application allows you to inspect various performance measurements, including various graphs of performance against time, recording events over a period of up to three days. Since the amplifier cannot record any events whilst powered-off, breaks in a log due to power-downs are indicated by a break symbol || in the log. The events recorded are:

Supply Current - How much current is being supplied to the device via the mains inlet

DC Link Voltage – A voltage which is derived from the mains supply voltage

Thermal Capacity – How much of the available thermal capacity has been used

Driver Current (for each output) – The average current being delivered to the driver

Driver Impedance (for each output) – The average impedance of the driver

Protection Limiting (for each output) - How much the amplifier is ‘dimming’ itself in order to

protect itself from potential damage

The data in the log can be exported by right-clicking on the log to launch a context menu, and selecting “copy log data to clipboard”. The data could then be pasted into a spreadsheet for further analysis. Tecnare may ask you to do this is you have experienced a problem. Alternatively, all of the operational and performance data, including the logs may be collected together into a single file by selecting File > Save Device Diagnostics. This data can be used by Tecnare to diagnose your amp.

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Operation Manual

6 Remote control and System Engineer®

Processing

As outlined in section 1.1 (Thanks and unpacking), this device integrates seamlessly into the System Engineer environment, providing all features, functionality and connectivity associated with all

The internal Processing includes programmable crossovers, EQ, limiter protection and other functions, and can be fully controlled via System Engineer software.

Visit http://www.tecnare.com

for your devices.

DP Series Processors and T Series amplifiers

to download the latest software, firmware and documentation

6.1 Quick Start Guide

6.1.1 Starting the device

The T-44 amplifier can be started up with its front panel power-on button

Usually T-44 includes a basis of Tecnare speaker modules, which you can recall with

<INPUT> until the desired DSP input → <▼> or <▲> until the RECALL page → coding wheels until the desired preset → <ENTER> x2.

These modules are input modules only, so it is necessary to do the same operation 4

times from DSP input A to DSP input D in order to load a preset device-wide. Similarly, an input module can be saved with <INPUT> until the desired DSP input → <▼> or <▲> until the STORE page → coding wheels until the desired memory slot → <ENTER> x 2.

For more information about the device front panel commands, please refer to Front Panel User Guide on page xxx.

6.1.2 Software setup

The System Engineer software allows to remotely controlling T-44 amplifiers, T-48

amplifiers DP4896, DP2696 processors and PCC-3 Self-Powered Series Loudspeaker. This

software requires the full Microsoft .NET Framework installed on your system, you can find this software on Microsoft installing the software, it is necessary to remove all previous versions of System Engineer. Then, execute the "SetupSecure.msi" software which you can find in the Software_DPS_ System Engineer_v… folder. If a window prompts you for network access authorizations, authorise everything. When the software is launched for the first time, it asks for an authorisation code. It is:

STBXKAHTCE

The T-44/48 amplifier can be remotely controlled via an Ethernet port, located at the

rear of the device. Thanks to an RJ45 cable, connect the device to the computer or to the same network as the computer. Wait for the orange Online LED to stop blinking and click on the connection icon.

™

version 3.5 or 4.0. If it is not already

™

official website. Before

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6.1.3 Firmware update

The System Engineer sometimes prompt you to use a more recent firmware for your devices. To update the firmware, right-click on the device you want to update in the Device View, and select "update firmware. . . ". Then browse to the FIRMWARE folder, and choose the firmware corresponding to your device ("TECNARE_T44/48Series. . .dfw"). Firmware updates take some time, please do not disconnect or power cycle the device in the meantime.

6.1.4 Useful recommendation

6.1.4.1 Power failure and data loss

Warning If "Please Wait" is displayed on the T-44/48, do not unplug the mains: otherwise, Data loss could occur.

If a power failure happens while you are using the software remote control, it is possible

that some data get lost. Please reload all presets before further use.

6.1.4.2 Overlay flush

Although group functions are not available via front panel, it is possible to erase all overlay parameters. Just push <UTILITY> and <ENTER> simultaneously and hold it for 5 seconds.

Sometimes, while handling overlays overlay parameters can remain after the module removal from a group. In this case, it is necessary to disconnect the device from network, to flush overlay with the <ENTER> and <UTILITY> key combination, and to rewrite group parameters.

6.1.4.3 Preset and software versions

A preset file created with a given version of System Engineer will be compatible with all following versions.

Compatibility problems can happen if a preset file is opened with an older software

version that the one it was created with.

In order to avoid these problems, prefer using the manufacturer presets given with your System Engineer version, and use only one System Engineer version at the same time. In case you have several versions, please check your presets regularly.

You should also use the same firmware version on all your devices.

Please make sure your software, firmware and presets are up-to-date. You can find the latest versions on the TECNARE website,

www.tecnare.com

6.2 Remote Control setup

6.2.1 Plug&play connection

The T-44/48 amplifier can be remotely controlled via a PC. The PC to T-44 connection is plug-and-play and uses TCP-IP protocol, so that any standard router can be used to control several T-44/48.

Here is the required hardware for DA remote control:

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• Windows PC with System Engineer software

• RJ45 cables

• TCP-IP router (in order to connect several DA)

For one T-44/48 only Plug the DA directly to the PC using the RJ45 cable or through switch or route.

Wait for the Online LED on the device to stop blinking, then click on "Online" in System Engineer.

For several DA Plug the T-44/48 to the switch or router using RJ45 cables. For a non-Wi-Fi router, plug the router or switch to the PC. For a Wi-Fi router, connect the PC to the router Wi-Fi network. Wait for the Online LED on the device to stop blinking, and then click on "Online" in System Engineer.

Any router can be used with T-44/48. Tecnare advices you to use a standard 10/100/1000 router with embedded DHCP functionality.

6.2.2 Recommendation

• Using a Wi-Fi connection in live events is hazardous because the audience’s mobile devices emits Wi-Fi. It is advised to use RJ45 cables in order to use System Engineer remotely (as well as any remote control software).

• Connexion between a T-44/48 and a PC can be tricky because of firewalls, which are included by default in Windows as well as in antivirus or antimalware. In order to make the connection work, it is necessary to allow System Engineer to communicate via UDP ports, which is done automatically most of the time but can also fail. The simpler workaround is to use a router between the PC and the T-44/48, because the PC can keep the router firewall settings in memory and thus communicate with any T-44/48.

• Tecnare recommend using Transmission Control Protocol (TCP) to reliably control T- 44/48 with external devices.

In summary :

• T-44/48 in automatic mode

• Cable connexion strongly advised, never rely on Wi-Fi

• DHCP router, preferably one router/computer

• If there is no other option that uses UDP, configure the “System Engineer.exe” software

to communicate with UDP (FYI, the UDP port used by System Engineer are 6000, 6001, 55166, 55167)

6.2.3 Reading and changing the device IP

By default, your device is configured in automatic IP addressing.

If you want to see your current IP address, proceed as follow : on the device front panel,

press UTILITY and navigate through the parameter pages with <▼> and <▲> until you get to the IP Curr page.

Operation Manual

If you wish to set the IP address manually (advanced users), proceed as follow :

1. On the device front panel, press UTILITY and navigate through the parameter pages with <▼> and <▲> until you get to the IP Mode page.

2. Turn the A encoder to change from Auto to Manual.

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Mode

Auto

3. If you wish to set the IP address, go to the IP Static" page and change the IP with encoder ADJUST

6.3 Ethernet

Ethernet connection permits full control of all functions along with real-time metering from a

remote position.

6.3.1 Ethernet configurations

IP addressing in the Device can be completely automatic; No setup is required. When

first installing and launching System Engineer, the computer Firewall may ask to allow System Engineer to access the network.

NOTE: This must be allowed.

6.3.2 DHCP

There are two primary IP address ranges – one used when there is a DHCP server present (e.g. a Router in the system), and another where there is no DHCP server (so the Device and the Computer will instead use 'Auto IP'). Both the device and the computer must be in the same IP address range. In an office IT environment where there is a DHCP server, both the computer and the Device will be in the DHCP IP address range, so will connect immediately.

6.3.3 AUTO-IP

After the computer is switched on in an isolated network, or unpluged from an IT network, it takes a while to time out of DHCP searching, so will not connect immediately. It can take several minutes for the computer to acquire an Auto IP address.

Similarly, the Device will initially search for a DHCP server when first switched on (during which time its Online Indicator will be flashing). It can take one minute before it will be able to connect while is acquires an Auto IP address.

6.3.4 Static-IP

If the device or the computer has a static IP address set, System Engineer may not be able to 'see' the device if it is in a different IP Address range - unless there are good reasons it is best to avoid the use of static IP addressing if at all possible. In static IP mode, the main menu will display the static IP address of the device on the main screen, with blinking.

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Operation Manual

6.4 Troubleshooting

6.4.1 System Engineer Installation or running problems

1. Verify that Microsoft .NET Framework version 3.5 or 4.0 is

correctly installed. Warning: the complete .NET Framework is necessary (don’t install only "profile client" or "SDK" versions).

2. Verify if Microsoft .NET Framework version 1.1 or 2.0 are not installed on your computer. If it is the case, it is advised to uninstall with Microsoft .NET Framework removal tool, and then to reinstall .NET Framework 3.5 or 4.0. Warning: uninstalling these former versions can prevent some of your software to work correctly, if they use it.

3. Before installing a new System Engineer version, it is strongly advised to uninstall all previous versions.

4. Try to uninstall and reinstall System Engineer.

6.4.2 Connection problems

If System Engineer cannot connect to the device:

• Verify that the RJ45 cable is plugged, that all the devices are powered on, and that the RJ45 ports LEDs (yellow and green) are blinking.

Solution Verify all cables, RJ45 can be rather fragile.

• Check that the Firewall in the computer will allow System Engineer access to the network.

• Wait 10 minutes (for the computer to acquire the correct IP address) and try again.

• Check that the Current IP address in the device is compatible with the IP address of the

computer. Generally, the leftmost two sets of 3 digits should be the same.

• Always switch on any DHCP server before connecting either the computer or amplifier to the network.

• Verify that your System Engineer version is recent enough to use the T-44 (V6.16 or more).

Solution Install the latest System Engineer version

• Verify that "Ethernet" network appears in the System Engineer left panel, in Network view.

Solution "Network"→"Add Networks"→select "Ethernet"→ "Add"

• Do not forget to click on the connection button or on "Network"→"Connexion"

• If the T-44/48 is directly plugged to the computer RJ45 port, and everything is in

automatic mode, wait 2 minutes before trying to connect again. (Windows has to stop looking for a DHCP server, and then the T-44/48 has to choose an address. The Online LED has to stop blinking)

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• Verify that the network card is activated, and succeed in connecting.

Solution In order to activate the network card: "Local Area connection" icon in task-bar

→right click→"Activate" Control Panel→Right click on "Local Area connection"→ "Activate".

If it was already activated, you can try the "Repair" option, which will reset the IP settings: "Local Area connection" icon in task-bar → right click → "Repair" Control Panel → Right click on "Local Area connection" → "Repair"

• Verify that the network is not set in "public area connection" mode, but in "work or

home" mode.

• Verify that System Engineer is allowed in Windows firewall. "Control Panel" → "Security

Center" → "Security parameters for: Windows Firewall" → "Exceptions" tab → Verify that " System Engineer.exe" is in the exception list and that the corresponding box is checked. If you have an anti-virus software, it may have an additional firewall which can block System Engineer. Verify your anti-virus firewall.

6.4.3 Advanced troubleshooting

In order to determine if the problem comes from communication between computer and

device, or from the software, it can be useful to "ping" the T-44/48, that is to say to carry a little test in order to see if the T-44/48 answers to a request via the network, without using System Engineer (a very well-known test for networking amateurs)

• Find the T-44/48 current IP in UTILITY → “Current IP”

• Open Windows command pront: Start Menu → type “cmd” in Start Menu search bar

→ click on the “cmd” icon.

• In the command prompt, after “>”, type “ping”, followed by a blank space, and by the T-44/48 IP address (4 integers separated by dots). For instance, for a T-44/48 with IP address 192.168.1.100:

Ping 192.168.1.100

• A messenger “Pinging 192.168.1.100 with 32 bytes of data” appears, followed by several line.

1. If all lines consist in the following message: "Request timed out", the connection does not work. In this case, verify the connection between the computer and the T-44/48: cables, plugs, RJ45 ports LEDs blinking, as well as IP settings. Verify that your network card works, with a working and up-to-date pilot. Try automatic and manual mode, with or without DHCP server, with our without router if you have one.

2. If messages such as "Reply from (T-44/48 IP address)", followed by pieces of information (time, statistics, etc.), then the computer and the T-44/48 are correctly configured and able to see each other. In this case, verify System Engineer settings: does Ethernet network appears in the left panel, is " System Engineer.exe" authorized in all firewalls, is .Net Framework 3.5 or 4 installed and up-to-date?

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T-44/48 Series Amplifier

Total power output (T44 model)

Front panel switch, network command, contact Max ambient temperature (full power, no audio limiting)

Low feedback, multiple loop, with feedforward

error correction.

Dynamic range (AES3 or Dante input to speaker output)

+/- 0.5dB, 5Hz to 20kHz, 4 Ohms.

-2.5dB, <3Hz to >30kHz, 4 Ohms.

Inter-channel crosstalk (worst combination of channels)

better than -85dBr at 1kHz. better than -75dBr at 10kHz.

Slew Rate

Maxim um analog input level

>60V per microseconds typical

+20dBu.

Transformer isolated with active cable equalisation for extended range (unique to Linea).

Active AES3 signal regeneration with automatic

unpowered.

Operation Manual

7 Technical Specifications

General

Number of channels Four (T-44) or Eight (T-48)

20,000/10,000/6,000 Watts RMS (T20, T10, T06)

Total power output (T48 model) 10,000/6,000/3,000 Watts RMS (T10, T06, T03)

Energy saving modes

System sleep and wakeup

Standby and deep ECO sleep both with autosleep timers

closure and audio detection

40degC (105degF)

Audio

Amplifier topology Proprietary 5th generation LR Class D.

Amplifier modulation scheme

Dynamic range (analog input to speaker output) >113dBA typ.

>114dBA typ.

Frequency response

Total harmonic distortion, THD <0.05% typ, 1kHz, AES17, 4 Ohms.

Damping factor (Ref 8 Ohms)

>800 at amplifier output (see linea’s “Damping factor debunked” whitepaper)

Analog input sensitivity range for full output 0dBu to +20dBu, continuously adjustable.

Analog input 20k Ohm, electronically balanced.

Analog link Directly connected to the analog input.

Analog ground scheme AES48 standard compliant.

AES3 input

AES3 link

AES3 supported sampling rates 24kHz to 192kHz (auto locking).

direct bypass to the AES3 input if the unit is

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Resolution

40 bit, using proprietary LMD (Linea-Micro-Detail) algorithms.

Sample rate

96kHz throughout.

Special functionality:

Class leading limiter suite

See the ‘speaker protection systems’ section.

Hardman crossover filters

Better out of band rejection than Linkwitz-Riley (Unique to Linea).

LIR crossover filters

Linear Phase without the compromises of FIR filters (Unique to Linea).

FIR Shelving EQ filters

For linear phase filtering.

Overlays

Twelve additional independent overlays of EQ, Delay and Gain.

VxLim, Multiband peak limiter (Unique to Linea)

VxMax, Multiband overshoot limiter (Unique to Linea)

Vx-Tmax, Driver thermal limiter (long term power limiter)

Digital processing

Power supply

Topology (main power supply) 3rd generation Series Resonant.

Topology (auxiliary and standby supplies) Low quiescent Eco-Flyback.

Internally stored energy >600 Joules.

Mains input voltage range (automatically configured) 85V to 240V.

Mains input frequency range 47Hz to 63Hz.

Mains inrush current (max for <10ms) 6A at 115V, 12A at 230V.

Protection systems

Note: Under all circumstances the control and protection systems will endeavour to deliver the maximum power possible for a given set of conditions, applying limiters only in extreme circumstances. Muting will only occur when a dangerous situation is detected, normal operation automatically resuming when the condition clears.

System protection Speaker protection

Excessive output current Audio soft-clip limiter

Excessive power supply current

Excessive amplifier section temperature

Excessive power supply section temperature Vx-Xmax, Driver excursion limiter

Excessive DSP section temperature

Mains voltage out of range DC offset protection

Fan speeds out of range Excessive HF energy (VHF) limiter

Internal power rails out of range

Power distribution protection systems

Mains inrush current limiting (soft start and anti-surge). Mains average current limiting (mains breaker / fuse trip protection). Randomised initialisation when powered up to reduce the peak power demand in large systems.

Monitoring and logging

Supply current logged vs. time Number of power cycles counted Supply voltage logged vs time Number of mains brownout events counted Thermal Capacity logged vs time Fan speeds continuously monitored Each driver current logged vs time Fan underspeed events counted Each driver impedance logged vs time Various protection mute events counted Protection limiting for each output logged vs time Driver Impedance continuously monitored

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T-44/48 Series Amplifier

Washable media, changeable without the use of tools.

Bright, easily differentiated. Enclosure Standard

support system

Model

T20-44

T10-44

T06-44

RMS output power per channel, all channels driven with continuous program material and a nominal ambient temperature of 40degC / 105degF

Crest Factor of 4 (12dB), 2-Ohm nominal load

5,000W

2,500W

1,500W

Crest Factor of 2.8 (9dB), 4-Ohm nominal load

3,000W

2,500W

1,500W

Crest Factor of 2 (6dB), 8-Ohm nominal load

1,500W

750W

Bridged, per channel pair, 4 Ohm load

10,000W

5,000W

3,000W

25V line (CV) operation, Crest Factor 4 (12dB)

1250W

885W

685W

70V line (CV) operation, Crest Factor 4 (12dB)

3500W

2,500W

1,500W

100V line (CV) operation, Crest Factor 4 (12dB)

5,000W

2,500W

1,500W

Model

T10-48

T06-48

T03-48

RMS output power per channel, all channels driven with continuous program material and a nominal ambient temperature of 40degC / 105degF

Crest Factor of 4 (12dB), 2-Ohm nominal load

1,250W

750W

400W

Crest Factor of 2.8 (9dB), 4-Ohm nominal load

1,250W

750W

400W

Crest Factor of 2 (6dB), 8-Ohm nominal load

1,250W

750W

400W

Bridged, per channel pair, 4 Ohm load

2,500W

1,500W

800W

25V line (CV) operation, Crest Factor 4 (12dB)

625W

485W

355W

70V line (CV) operation, Crest Factor 4 (12dB)

1,250W

750W

400W

100V line (CV) operation, Crest Factor 4 (12dB)

1,250W

750W

400W

An inbuilt alarm and notification system can be configured to indicate problems to remote devices either via the network or the Volt-free changeover relay contacts accessibly on the rear panel.

Operation Manual

Physical

Cooling Variable speed fans.

Airflow Front to back.

Air filtration

Analog IN and LINK connectors Genuine Neutrik XLR.

AES3 IN and LINK connectors Genuine Neutrik XLR.

Audio output connector Genuine Neutrik Speakon.

Mains input connector Genuine Neutrik 32A Powercon.

Dante Primary and Secondary Shielded RJ45.

Relay output & contact closure inputs Phoenix pluggable terminal block.

Front panel display (backlit) Graphical, high contrast, daylight visible.

Front panel encoders Two, indented, velocity sensitive.

Front panel push buttons Large, tactile, illuminated.

LED indicators

Depth (behind rack ears) 357mm (14”).

Net W eight 12.5kg (27.5 pounds).

19” 2U (88mm) with handles and optional rear

Power Output

Power specification

Options

TECNARE can supply for digital audio network a Dante option card for T-44/48 Series amplifier to be factory fitted. Currently Tecnare support Dante from Audinate.

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T-44/48 Series Amplifier

Operation Manual

7.1 Processing Block Diagram

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100 1.10

1.10

6dB/Oct 12dB/Oct 18dB/Oct 24dB/Oct 48dB/Oct

Butterworth

Frequency, Hz

Magnitude, dB

100 1.10

1.10

12dB/Oct 24dB/Oct 48dB/Oct

Linkwitz-Riley

Frequency, Hz

Magnitude, dB

8 EQ and Filter Response Graphs

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T-44/48 Series Amplifier

100 1.10

1.10

12dB/Oct 18dB/Oct 24dB/Oct

Bessel

Frequency, Hz

Magnitude, dB

100 1.10

1.10

4th Order 8th Order

Hardman

Frequency, Hz

Magnitude, dB

Operation Manual

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100 1.10

1.10

24dB/Oct

LIR (Linear Phase)

Frequency, Hz

Magnitude, dB

100 1.10

1.10

360

300

240

180

120

Bandwidths 0.1 to 5 Octaves

All-Pass Filter

Frequency, Hz

Phase, degrees

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T-44/48 Series Amplifier

100 1.10

1.10

Low shelf, varying Gain High shelf, varying Slope

Shelving EQ

Frequency, Hz

Magnitude, dB

100 1.10

1.10

Varying Gain Varying Bandwidth

Parametric EQ

Frequency, Hz

Magnitude, dB

Operation Manual

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T-44/48 Series Amplifier

Reinventing The Rules

The contents of this manual ar e furnished for informational purposes only, are subject to change without notice, and should not be construed as a commitment by Exel Acoustics SL. Exel Acoustics assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual. Except as permitted by applicable copyright law, no part of this publication may be reproduc ed, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, recording or otherwise, without prior written permission from Exel Ac oustics. Tecnare and PCC-Net are trademarks of Exel Ac oustics SL. System Engineer, BvNet and all third-party tr ademarks mentioned herein are the property of their respective trademark holders.

Printed in Spain.

Operation Manual

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EXEL ACOUSTICS SL

CL Encinar, 282 - Pol. Ind. Monte Boyal 45950 Casarrubios del Monte (To) Spain (e): support@tecnare.com

www.tecnare.com - www.facebok.com/tecnare

(T): +34 918 170 110 - +34 918 171 001 (F): +34 918 183 053

System Engineer™

rev. 2.0 2017

Tecnare Sound Systems T-48 Series, T-44 Series, T06-48, T10-48, T20-44 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT SAFE INSTRUCTIONS

DECLARACIÓN DE CONFORMIDAD

1 Welcome and Installations instructions

1.1 Thanks and unpacking

1.2 Unpacking

1.3 The User Guide

1.4 Mechanical installations

1.5 AC Power Connection

1.6 Audio Connections

2 Introduction and Key Features

2.1 Introduction

2.2 Key Features

2.3 Drive Modules

2.4 Overlays

2.5 LIR Linear Phase Crossover Filtering

2.6 FIR Linear Phase Equalisation

3 Panels Interface User Guide

3.1 Panel Layouts

4 Operation modes

4.2 Input

4.3 Output

4.4 Utility Page

5 Hardware Function

5.1 Snapshots

5.2 Aux Port

5.3 Latency Delay

5.4 Secure Mode

5.5 Overlay Flush

5.6 Revert to Factory Settings

5.7 Protection Systems

6.1 Quick Start Guide

6.2 Remote Control setup

7 Technical Specifications

7.1 Processing Block Diagram

8 EQ and Filter Response Graphs