TOA Electronics TDX2 User Manual

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TDX2

USER MANUAL

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Tannoy TDX2 Quick reference

To access a channel press the appropriate channel’s ‘GAIN’ button. When you press the button once you will get that channel’s gain screen. To scroll through a channels’ parameters, use the ‘BACK’ and ‘NEXT’ keys. (If you press the gain button a second time, you will get the last parameter viewed. A third press will take you back to the default screen.)

To enter the menus, press the ‘MENU’ key. Use the ‘BACK’ and ‘NEXT’ keys to take you to the sub-menu you require. ‘ENTER’ will take you into the sub-menu you have selected. Use the ‘BACK’ and ‘NEXT’ keys to select the menu you require. Press ‘ENTER’ to take you into the menu selected. ‘BACK’ and ‘NEXT’ will then select the menu options. Use ‘ENTER’ to confirm selection.

MENUS:

X-over Sub-Menu: Used for storing and recalling X-overs including format, output EQ, output delay, output gain and limiter settings. Also used for designing a new X- over.

Input Sub-Menu: Used for ganging inputs.

Security Sub-Menu: Used for locking various features of the unit with a unique 4 digit code.

System Sub-Menu: Used to view reports of the units status. Other options include whether the parameters are displayed in Q or bandwidth and if the meters are pre or post mute.

Interface Sub-Menu

AES/EBU Sub-Menu

Notes:

1.The X-over (output) settings are stored / loaded independently (using ‘store / load a X-over’) from the input settings (using ‘store / load input memory’).

2.The output meters show level, in dB’s, from limiter threshold. The input meters show level, in dB’s, from input clip.

3.HPF’s and LPF’s are defined independently on each channel.

4.To get access to the limiter attack and release, select ‘Auto Limiter TC’ No, when designing a X-over

5.To show parametric filters in bandwidth (‘BW’), rather than Q, go into the ‘system sub-menu’, select ‘filter Q or BW’, select BW.

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Contents

 

Important Safety Information .................................................................................................

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1.

Introduction .......................................................................................................................

8

2.

Unpacking the TDX2..........................................................................................................

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3.

General Overview and Features........................................................................................

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3.1. Features......................................................................................................................

8

4.

Front Panel Functions .....................................................................................................

10

5.

Rear Panel Functions ......................................................................................................

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6.

Operating the TDX2.........................................................................................................

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6.1. Preliminary Set-up ....................................................................................................

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6.2. Loading a factory preset............................................................................................

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6.3. Designing your own crossover...................................................................................

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6.4. Menu Selections .......................................................................................................

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7.

TDX2 Configurations .......................................................................................................

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7.1. Introduction ...............................................................................................................

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7.2. Crossover Modes ......................................................................................................

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7.3. Filter slopes ..............................................................................................................

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7.4. Time Alignment.........................................................................................................

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7.5. Block Diagrams of X-Over modes .............................................................................

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7.6. Output Limiters .........................................................................................................

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8.

Function Screens.............................................................................................................

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8.1. Parametric Equaliser Screen.....................................................................................

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8.2. High and Low pass filter Screens ..............................................................................

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8.3. Limiter Screen...........................................................................................................

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8.4. Delay Screen ............................................................................................................

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8.5. Polarity Screen .........................................................................................................

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8.6. Gain Screen..............................................................................................................

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9.

Menu Options..................................................................................................................

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9.1. X-over Sub-Menu......................................................................................................

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9.2. Input Set-up Sub-Menu .............................................................................................

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9.3. Security Sub-Menu....................................................................................................

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9.4. System Sub-Menu.....................................................................................................

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9.5. Interface Sub-Menu...................................................................................................

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9.6. AES / EBU Sub-Menu ...............................................................................................

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10. Equalisation Curves.......................................................................................................

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11. Specifications ................................................................................................................

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12. Operating Notes ............................................................................................................

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12.1. Operating Level ......................................................................................................

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12.2. Grounding ...............................................................................................................

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13. Warranty .......................................................................................................................

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14. Appendices....................................................................................................................

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14.1. Appendix 1 : Limiter threshold.................................................................................

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14.2. Appendix 2: Default Xover Settings.........................................................................

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An example of this equipment has been tested and found to comply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety:

Radiated Emissions (EU):

EN55013-1

(1996)

RF Immunity (EU):

EN55103-2

(1996) RF Immunity, ESD, Burst Transient, Surge, Dips &Dwels

Electrical Safety (EU):

EN60065 (1993)

Important Safety Information

Do not remove Covers. No user serviceable parts inside, refer servicing to qualified service personnel.

This equipment must be earthed.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

DO NOT EXPOSE TO RAIN OR

MOISTURE

ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS ENLEVER

NE PAS EXPOSER A LA PLUIE NI A

L’HUMITE

It should not be necessary to remove any protective earth or signal cable shield connections.

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

Only use this equipment with an appropriate mains cord.

In the USA the cord should comply with the requirements contained in the Standard for Cord Sets and Power Supply Cords, UL 817, be marked VW-1, and have an ampacity rating not less than the marked rating of the apparatus.

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1. Introduction

Thank you for choosing the Tannoy TDX2 loudspeaker system controller for your application.

The TDX2 is an advanced digital electronic controller intended to optimise the performance of Tannoy loudspeaker systems.

This manual explains how to configure the TDX2 to be tailored to your specific application. As well as technical specifications it also contains some helpful advice on how to use this controller and how to obtain the best possible performance from this unit. Please spare a little time to read the contents of this manual so that you obtain the best possible performance from this unit.

2. Unpacking the TDX2

Before your TDX2 Digital Controller left the factory, it was inspected and tested to make sure it reaches you in perfect condition. Would you please, however, check your TDX2 to make sure no damage has occurred in transit. In the unlikely event of any damage, would you please notify your dealer immediately and retain your shipping carton, as your dealer may ask you to return the faulty unit to him for inspection.

3. General Overview and Features

The TDX2 is a compact and powerful DSP based audio-processing unit, ideally suited for live applications, where it combines the functions of multiple conventional products in a compact 1U high unit. For ease of use, the TDX2 is factory set for operation with Tannoy products. In addition to this, 19 user memories are available. The latest preset files and Tannoy parameters can be obtained from your distributor or from the Tannoy website www.tannoy.com.

The TDX2 has 2 inputs and 6 outputs, which can be configured in 5 basic modes, 2 x 2 way, 2 x 3 way, 4 way, 5 way and 6 way crossover. Each input has gain and delay and each output consists of a high and low pass filter, 5 bands of parametric equalisation, limiter, delay, gain and polarity controls. A multi-level security ‘lockout’ function is available for these controls.

The TDX2 is also available with optional AES/EBU inputs and outputs. The TDX2 is designed for quick adjustment via easy-to-use front panel controls.

3.1.Features

Superb audio quality: Carefully optimised Double Precision processing plus 40 bit internal data path for exceptional dynamic range and sonic quality.

A flexible 2 input, 6 output multi-mode format featuring a choice of 2 x 2 way, 2 x 3 way, 4 way, 5 way and 6 way crossover modes with limiters.

Each parametric section provides +15dB to -30dB of gain at centre frequencies between 20Hz - 20kHz with a wide range of Qs from 0.4 to 128. All parameters feature fine resolution with 1/36th octave frequency steps, 0.1dB gain increments and 100 Q settings. Any parametric section can be set for LF & HF shelving response.

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Six high performance limiters are provided, featuring a wide range of control over Attack, Release and Threshold parameters. The output meters shows headroom to the limit threshold. The meter time constants track the limiter time constants to show precise power usage.

Variable High and Low pass filters for each output can be set for 12, 18 and 24dB per octave slopes with a choice of Bessel, Butterworth or Linkwitz-Riley responses. Independent control over High & Low pass functions allows asymmetric crossover functions to be realised.

Three velocity-sensitive rotary encoders provide a familiar and easy to use control format with all filter information displayed simultaneously on a backlit LCD display.

Delay of up to 650mS can be independently set for each output with a minimum increment of 2.6µS.

Comprehensive standard specification includes 19 user memories and Tannoy preset memories.

The TDX2 provides exceptional audio quality with a full >110dB dynamic range, high sampling rate and minimal filtering.

AES / EBU digital inputs and outputs are available as an option.

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4. Front Panel Functions

1.LCD Display - Shows menu options, output information and various parameters being adjusted.

2.Gain Keys - Two input and six-output ‘gain’ keys allow instant access to the gain screen for each channel. When a channel is selected the accompanying LED lights up. Pressing a second time selects the last function edited.

3.Next Key - Moves the display forwards through the list of available parameters for the current input or output channel.

4.Back Key - Moves the display backwards through the list of available parameters for the current input or output channel.

5.Menu Key - Activates the main menu on the LCD display. Pressing a second time selects the last menu edited. Different menus are selected by pressing the ‘BACK’ and ‘NEXT’ keys or using the ‘FREQ’ control.

6.Enter Key - Enters the chosen menu and confirms menu selections.

7.Quit Key - Exits the menu.

8.Bypass Key - Allows the currently displayed parametric section to be bypassed. (Note: The High pass / Low pass filters and limiters can not be bypassed.)

9.Parameter Controls - The three velocity sensitive rotary encoders allow the relevant parameter, on the LCD screen, to be adjusted.

10.Input Meters - Displays available headroom before input clipping occurs. The bottom 2 LEDs (green and yellow) are set at -24dB and -6dB below clipping. The top, red LED displays digital overflow and can therefore light without all the other LEDs becoming illuminated.

11.Output Meters - Displays headroom before limiting occurs. The bottom two LEDs display between -24dB and -6dB of input headroom. The top, red LED indicates 4dB of limiting.

12.Mute Keys – Six output mute keys with LED indicator.

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5. Rear Panel Functions

1.Power Switch.

2.Mains Fuse - Located in a finger-proof fuse holder adjacent to the mains inlet. Always replace this fuse with the correct type as shown on the rear panel legend. (N.B. A spare fuse is located in this holder.)

3.Mains Power - Connected via a standard IEC socket. A compatible power cord is supplied with the unit.

4.External - RS232 via a 9-pin DIN DEE socket, for connection to a PC.

5.XLR Inputs and Outputs - 3 pin XLR connectors are provided for each audio input and output. All terminations are fully balanced, pin 2 Hot, pin 3 Cold and pin 1 Screen (shield).

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