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LAB.GRUPPEN
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E 8:2E
Operation Manual
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LAB.GRUPPEN E 4:2E, E 8:2E Operation Manual

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E SERIES
Dedicated installation amplifiers
▸ E 4:2
▸ E 8:2
▸ E 12:2
Operation Manual
1. Important safety instructions
1. Important safety instructions
Before using your E Series, be sure to carefully read the applicable items of this Operation Manual and the Safety Instructions.
1. Keep this manual for future reference.
2. Heed all warnings. Follow all instructions.
3. Do not use this unit near water.
4. Do not spill water or other liquids into or on the unit. Do not operate the unit while wet or standing in liquid.
5. Clean only with dry cloth.
6. Do not block the air intake or exhaust ports. Install the unit in accordance with the instructions.
7. Do not operate the unit near heat producing devices such as radiators, heat registers, stoves or other apparatus that produces heat. Always operate the unit with the chassis ground wire connected to the electrical safety earth. Do not defeat the safety purpose of a grounding-type plug. A grounding-type plug has two pins and a third grounding prong. The third prong is provided
for your safety. If the provided plug does not t into your outlet,
consult an electrician for replacement of the obsolete outlet.
8. Connect only to AC power outlets rated 100 -240 V, 50 - 60 Hz.
9. Do not use this unit if the power cord is broken or frayed. Protect the power cord from being walked upon or pinched, particularly at the plug and the point where it exits from the apparatus. Only
use accessories specied by the manufacturer.
10. The unit is intended to use in a 19” rack. Follow the mounting instructions. When a rack on wheels is used, use caution when moving the loaded rack to avoid injury from tipping over. Unplug this apparatus during lightning storms or when unused for long periods of time.
11. Do not connect the unit’s outputs in parallel or series with any other unit’s output. Do not connect the unit’s output to any other voltage source, such as battery, mains source, or power supply, regardless of whether the unit is turned on or off.
12. Do not run any of the unit’s outputs back into another channel’s input.
13. Refer all servicing to qualied service personnel. Servicing is re
quired when the apparatus has been damaged in any way such as: a. Power-supply cord or plug is damaged. b. Liquid has been spilled into the unit. c. An object has fallen into the unit. d. The unit has been exposed to rain or moisture. e. The unit does not operate normally. f. The unit was dropped or the chassis is damaged.
14. Do not remove top or bottom covers. Removal of the covers will expose hazardous voltages. There are no user serviceable parts inside and removal may void the warranty.
15. An experienced user shall always supervise this professional audio equipment, especially if inexperienced adults or minors are using the equipment.
16. The mains plug is used as the disconnect device and shall remain readily accessible. If the mains plug is not readily accessible due to mounting in a 19” rack, then the mains plug for the entire rack must be readily accessible.
2. Approvals
This equipment conforms to the requirements of the EMC Directive 2004/108/EC and the requirements of the Low Voltage Directive 2006/95/EC.
Standards applied: EMC Emission EN55103-1, E3 EMC Immunity EN55103-2, E3, with S/N below 1% at normal operation level. Electrical Safety EN60065, Class I
This equipment is tested and listed accord ing to the U.S. safety standard ANSI/ UL 60065 and Canadian safety standard CSA C22.2 NO. 60065. UL made the tests and they are a Nationally Recognized Testing Laboratory (NRTL).
This equipment is tested and found to comply with the limits of a Class A device in part 15B of the FCC rules. UL made these tests.
3. Warnings
3.1 Explanation of Graphical Symbols
The lightning bolt triangle is used to alert the user to the presence of un-insulated “dangerous voltages” within the unit’s chassis that may be
of sufcient magnitude to constitute a
risk of electric shock to humans.
The exclamation point triangle is used to alert the user to presence of impor tant operating and service instructions in the literature accompanying the product.
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3.1.1 Wa r ning
To reduce risk of re or electric shock, do not expose this apparatus to rain or moisture. Do not expose this system/apparatus to dripping or splashing and ensure that no objects lled with liquids are placed on
the apparatus.
L’appareil ne doit pas être exposé à des egouttements d’eau ou des éclaboussures et de plus qu’aucun objet rempli de liquide tel que des vases ne doit pas être placé sur l’appareil.
This apparatus must be connected to a mains socket outlet with a protective earthing (ground) connection.
Cet appareil doi t être raccordé á une prise de courant qui est branchée à la terre.
The mains plug is used as a disconnect device and shall remain readily operable.
Lorsque la prise du réseau d’alimentation est utilisés comme dispositif de déconnexion, ce dispositif doit demeuré aisément accessible.
3. Warnings
3.1.2 Caution
To reduce the risk of re or electric shock, do not remove screws. No user-serviceable parts inside. Refer servicing to qualied service personnel.
Français: Pour réduire le risque d’incendie ou de choc électrique, ne pas retirer les vis. Aucune pièce réparable par
l’utilisateur. Coner l’entretien àpersonnel qualié.
3.2 User responsibility
3.2.1 Mains connection grounding
Your amplier must be connected to a grounded socket outlet.
3.2.2 Speaker output hazard
Power ampliers are capable of producing hazardous output voltages. To avoid electrical shock, do not touch any exposed speaker wiring while the amplier is operating. External wiring connected to the speaker terminals shall be installed by a qualied person, or ready-made leads or cords of appropriate capacity shall be used.
As the amplier outputs produce high voltage, do not connect or disconnect speaker cables when the mains power
is on.
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3. Warnings
3.2.3 Radio interference
A sample of this product has been tested and complies with the limits for the European Electro Magnetic Compatibility (EMC) directive. It also has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference from electrical equipment. This product uses radio frequency energy and, if not used or installed in accordance with these operating instructions, may cause interference to other equipment, such as radio receivers. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception (determined by turning the equipment on and off), the user may be able to correct the interference by one or more of the following measures:
• Check if the affected unit complies with the EMC limits for immunity, (CE-labeled). If not, address the problem
with the manufacturer or supplier. All electrical products sold in the EC must be approved for immunity
against electromagnetic elds, high voltage ashes, and radio interference.
• Consult the dealer or an experienced radio/TV technician for help.
• Reorient or relocate the antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
3.2.4 Speaker damage
Many loudspeakers can be easily damaged or destroyed by overpowering them. Always check the speaker’s
continuous and peak power capabilities. Although the amplier’s attenuators can be used to reduce the overall
gain, an increase of the input signal can still result in full output power, which may cause damage to connected speakers.
All E Series amplier are shipped with limiters set in “Lo-Z” mode. All models also support a “70 V” mode with
peak output voltage of 100 V peak. Users must verify that connected loudspeakers can handle full output before changing the limiter setting; the “70 V” mode translates to very high instantaneous peak power when connected to a low impedance loudspeaker (e.g. up to 2500 W peak into 4 ohms).
3.2.5 Maintenance
For safe and reliable operation, any dust collected in the front panel should be removed regularly. In rare
circumstances, accumulated dust could ignite due to high internal temperatures and a re occur. If the front
is clogged so that air cannot pass, then the unit will eventually go into thermal protection, any resultant problems will not be covered by the warranty.
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Table of Contents
Table of Contents
4. Welcome............................................................................................................................................................. 7
4.1 Introduction....................................................................................................................................................7
4.2 Main features................................................................................................................................................. 7
4.2.1 Class D output stage and universal power supply with low current draw............................................... 7
4.2.2 Amplier sensitivity / gain...................................................................................................................... 8
4.2.3 Protection and performance optimization..............................................................................................8
4.2.4 50 Hz high-pass lter............................................................................................................................ 9
4.2.5 APD / APO scheme (Auto Power Down / On)....................................................................................... 9
4.2.6 GPIO facilities....................................................................................................................................... 9
5. Installation........................................................................................................................................................10
5.1 Unpacking....................................................................................................................................................10
5.2 Mounting......................................................................................................................................................10
5.3 Cooling........................................................................................................................................................10
5.4 Operating voltage.........................................................................................................................................11
5.5 Grounding....................................................................................................................................................11
6. Quick guide overview...................................................................................................................................... 12
6.1 Front panel..................................................................................................................................................12
6.1.1 Front panel LEDs................................................................................................................................12
6.2 Rear panel ..................................................................................................................................................13
6.2.1 Power.................................................................................................................................................13
6.2.2 Per-channel control and monitoring.....................................................................................................14
6.3 Input signal present threshold........................................................................................................................15
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Table of Contents
7. Operation and performance........................................................................................................................... 15
7.1 Introduction..................................................................................................................................................15
7.2 Operating performance.................................................................................................................................15
7.3 Signal ow and headroom.............................................................................................................................15
7.3.1 Signal ow blocks................................................................................................................................16
7.4 Audio input and output connections, setup and features..............................................................................16
7.4.1 Balanced / unbalanced input connection.............................................................................................16
7.4.2 Output operation and connection.........................................................................................................17
7.4.3 Output bridge mode and asymmetric loading......................................................................................17
7.4.4 Constant voltage 70 V systems setup operation..................................................................................18
7.4.5 Output Current Peak Limiter (CPL)......................................................................................................19
8. Appendix..........................................................................................................................................................19
8.1 Maintenance................................................................................................................................................19
8.2 Current draw and thermal dissipation............................................................................................................19
8.3 Asymmetric loading data..............................................................................................................................19
9. Techincal specications................................................................................................................................. 23
10. Warranty........................................................................................................................................................... 24
11. Service............................................................................................................................................................. 24
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4. Welcome
4. Welcome
4.1 Introduction
Thank you for choosing a Lab.gruppen E Series product built around Lab.gruppen’s IDEEA, the IntelliDrive
Energy Efcient Amplier. This manual provides a comprehensive guide to the features and functionality of E Series model E 12:2, E 8:2 and E 4:2 ampliers. Please read through this manual in its entirety to become fully acquainted with conguration options and protection circuitry.
To facilitate timely installation and use of this E Series product, we have included a Quick Guide Overview (section 6). This brief summary, in conjunction with Installation (section 5), contains the basic information
needed to safely install the amplier and place it in service. However, we highly recommend reading through
this manual in its entirety, beginning with Main Features and Technologies and continuing through Operation and Performance. As you become thoroughly familiar with all aspects of operation, you may learn of features
or options that will affect your choices on amplier modes or loudspeaker system conguration.
Lab.gruppen E Series power ampliers are designed and built specically for the unique demands of permanent installation applications. By packing two channels of efcient recongurable power amplication into a 1U chassis, the E Series achieves a high power and channel density. The benets include reduced rack space requirements and minimal heat build-up. The exible output stages enable each amplier channel to be set
for either low impedance or “70 V”-constant voltage (70.7 Vrms = 100 V peak) mode.
Although E Series features and facilities are tailored for installation applications, each amplier draws on the
foundational engineering that has made Lab.gruppen the benchmark of quality for touring concert systems: exceptional sonic performance, rugged construction, proven reliability, and protection features that anticipate every unwelcome possibility.
This manual was created for the E Series E 12:2, E 8:2 and E 4:2 amplier models. Any references to “E Series”
in this manual refer to all models in the range.
4.2 Main features
Your new E Series amplier incorporates a number of sophisticated technologies – many of them proprietary to Lab.gruppen – that ensure the best possible performance and years of reliable operation. Familiarizing yourself
with these technologies will prove invaluable in setting up and optimizing your loudspeaker system.
4.2.1 Class D output stage and universal power supply with low current draw
All E Series ampliers employ a unique Class D output stage that is ideally matched to the rated power output. To provide exibility, each channel offers sufcient voltage swing and current capacity to drive either constant
voltage (“70 V”) or low impedance (2/4/8 or 16 ohms). In order to have low thermal losses as well as the voltage swing required to drive 70 V, the design is based on a permanently bridged output.
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4. Welcome
4.2.2 Amplier sensitivity / gain
For ease of use in system integration, E Series have been designed with a xed sensitivity of 4 dBu. Each model
offers two operational modes individually selectable per channel:
* “70 V” – Optimized for constant voltage systems but also can be used when load impedance is 8 ohms or
higher. Input signal of 4 dBu produces 70.7 Vrms output, for gain of 35.2 dB.
* “Lo-Z” – Optimized for driving loads with impedance below 16 ohms. Input signal of 4 dBu produces the rated
burst power into 4 ohms; gain varies by model.
4.2.3 Protection and performance optimization
Appropriate and reliable power amplication is vital to any audio system. Inadequate or faulty power ampliers could cause damage to loudspeakers, or in some cases to the power ampliers themselves. To prevent damage or service interruptions, E Series ampliers offer advanced features to protect both internal circuits and connected loads. These features include the mains current limiter that allows several ampliers to be
connected to a typical mains outlet.
Standard E Series protection features include:
• A CPL (Current Peak Limiter) ensures that the amplier’s output does not exceed the safe current handling parameters of the amplier components.
• Temperature protection ensures that the amplier will not be damaged by exceeding thermal limits. A TEMP indicator LED ashes when the amplier approaches thermal limits to allow user action before protective
muting engages.
• A PAL (Power Average Limiter) limits the maximum average power consumption from the mains.
• DC protection ensures destructive DC signals will not appear at the amplier outputs. If such conditions
occur an internal fuse opens.
Note! There is no open fuse indication on the amplier. If a channel indicates signal presence but
there is no sound, an open fuse could be the cause. If an internal fuse is blown, then the amplier
needs service.
• Under Voltage Limit - A temporarily low mains voltage will indirectly initiate limiting if a high output level is attempted. In most circumstances, depending on signal characteristics and level, the amplier will remain operational. This limiting allows the amplier to remain functional during sustained periods of
lower mains voltage, as well as during temporary dips and when very long mains cords are used.
• Low inrush current ensures that the mains breaker will not trip when several power ampliers are turned
on simultaneously.
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5. Installation
4.2.4 50 Hz high-pass lter
Each channel has a switchable 50 Hz high-pass lter. In the default full-range position the amplier has a at response with a -3 dB point at 2 Hz. When engaged, the lter rolls off low frequencies (12 dB/octave) for greater efciency and reliability in, for example, 70 V high-impedance systems where the removal of very low frequency content may be desired. The lter can also be used if desired when the output channel is connected to low
impedance loudspeakers that are unable to reproduce deep bass frequencies.
4.2.5 Auto Power Down / On (APD / APO) scheme
To comply with Energy Star 2.1 requirements, all E Series ampliers incorporate an APD scheme with power
consumption below 1 W in sleep/standby mode. The E Series will go to standby mode after 20 minutes without input signal.
E Series also incorporates an APO functionality that restores full operation less than two seconds after signal is applied to either of the inputs. Chapter 6.3 describes the threshold that is used.
4.2.6 General Purpose Input / Output (GPIO) facilities
The GPIO connections allow seamless interfacing with many third-party control and power sequencing systems.
Functions are optional; the ampliers will operate normally when GPIO is not connected.
The General Purpose Input (GPI) controls the power state via external contact closure as follows:
• It reacts to a transition from open to closed by forcing the unit to the on state. The APD function will still
apply, and the on state will be retained after a power cycle.
• It reacts to a transition from closed to open by forcing the unit to the standby state. This will also disable the
APO until it is turned on again.
The General Purpose Output (GPO) is an internal contact closure that, when closed, indicates the unit is on and
both channels functional (neither muted due to high temperature). Open indicates that the amplier is either in
standby or protective mute is activated in one or both channels.
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5. Installation
5. Installation
5.1 Unpacking
Carefully open the shipping carton and check for any noticeable damage. Every Lab.gruppen amplier is tested
and inspected before leaving the factory and should arrive in perfect condition. If any damage is discovered, please notify the shipping company immediately. Only the consignee may institute a claim with the carrier for damage incurred during shipping. Save the carton and packing materials for the carrier’s inspection. Should you
ever need to ship the amplier, always use the original packaging materials.
5.2 Mounting
The amplier is one rack unit high (1U) and will t into a standard EIA 19” rack. The depth is 276 mm (10.9”).
The weight is approximately 4.2 kg (9.3 lbs) depending on model type.
Free airow from front-to-rear of the amplier must be allowed. Therefore, no doors or rack-lids should be mounted in front of or behind the ampliers.
Ampliers may be stacked directly on top of each other. There is no need for spacing in between units, although
spacing might enable more convenient installation of cabling on the rear panel.
5.3 Cooling
The E Series ampliers have very low idle power draw and they are very efcient. However, to reduce the risk of engaging thermal protection, the amplier has been designed with a forced-air cooling system (air ow from front-to-rear) that activates as needed. Front-to-rear airow is preferred as cooler air is present at the front in
nearly all installed applications, allowing higher continuous power levels without encountering thermal
problems.) Never attempt to reverse the airow.
Always allow adequate air supply in front of the amplier, and ensure that the rear of the amplier has sufcient space to allow exhaust to escape. If the amplier is rack-mounted, do not use covers or doors on the front or
rear of the rack.
Should a heat sink overheat, the temperature sensing circuits will mute the overheating channel. If the power supply overheats, another sensing circuit will mute all output channels until the power supply cools to safe operating temperature. An early warning before shut down will be indicated on the front-panel TEMP LED.
Always make sure that the recessed dust grille in the front is clean to ensure maximum possible airow as this
will minimize the risk of thermal protection, any required repairs are not covered by the warranty.
To calculate the maximum heat emission value when installing the ampliers in rooms with an air-conditioning system, please refer to the Current Draw and Thermal Dissipation specications provided in the Appendix
section.
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6. Quick guide overview
5.4 Operating voltage
All E Series ampliers have a universal power supply that accepts mains voltages from 100-240 V @ 50 or 60 Hz. The amplier requires 85 V to start, but will remain in service with mains voltage dips down to 60 V; however,
power output will be limited if it’s less than 100 V. An IEC male receptacle is provided on the rear panel of all
ampliers. The IEC cord included with each amplier has a male plug appropriate for the power receptacles in
the country in which it was sold. If substituting a different IEC mains cord for use in another country, use only a cord that is grounded and approved for 3 A or more. Make sure it is connected to a grounded mains outlet.
Once a suitable AC supply is connected, the amplier will go into standby as indicated by amber illumination of
the “power” LED (front and rear panel).
When the amplier is turned on it goes through a soft-start sequence as it self-checks its circuits. The “power” LED becomes green to indicate that the amplier is on.
5.5 Grounding
E Series ampliers have no ground lift switch or terminal. The signal ground is always oating, via a resistor, to
chassis and therefore the grounding system is automatic.
In the interests of safety, never disconnect the earth (ground) pin on the AC power cord. Use balanced input
connections to avoid hum and interference. If this is not possible; connect the “–“ pin to signal ground.
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6. Quick guide overview
6. Quick guide overview
6.1 Front panel
The front panel presents six status indicators. The recessed air inlets have a metal grill to prevent objects or
large dust particles from entering the amplier. These openings can also serve as handles for pulling or lifting the amplier.
6.1.1 Front panel LEDs
The front panel LED area includes the following indicators:
▸ Power Indicates standby mode with amber and on mode
with green.
▸ Temp (Temperature) – Flashes amber to for early warning
if the temperature is high in either the PSU or one of the output channels. Dangerously high temperature initiates muting, as indicated with constant amber light.
▸ Sig (Input Signal Present) – Illuminates when the input signal
level exceeds the Signal Present Threshold (SPT).
▸ Lim Illuminates when the amplier is limiting the signal.
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6.2 Rear panel
00-240V 50-60Hz
Locking IEC; must be grounded/earthed
Ser. N:o
Removed!
CONTROL MONITOR
GPI
CH
GPO
Table of Contents
CHANNEL 1
CH
1
2
HIGH
70V
PASS
SIG
-Inf 0
Lo-Z
FULL
RANGE
CHANNEL 2
-10dB
-10dB -10dB
HIGH
70V
PASS
SIG
-Inf 0
Lo-Z
FULL
RANGE
-10dB
POWER
BALANCED SPEAKER OUTPUTSBALANCED INPUTSPOWER STATE
CH
1
DO NOT
CONNECT ANY
TERMINAL TO
GROUND.
CLASS 2 WIRING
CH
2
Locking IEC; must be grounded/earthed
00-240V 50-60Hz
Ser. N:o
Removed!
E 12:2
Designed in Sweden
manufactured in Thailand
Audio Power Amplifier
for professional use
4GC7
GPIO
connectors
3-pole block
type input
connectors
Switches,
indicator and
attenuator per
channel
Power control
and indicator
2-pole block
type output
connections
Mains input
100 -240
@ 50 or 60 Hz
6.2.1 Power
The Power control button is located in the middle. When pressed momentarily it toggles the power state between standby and on.
The Power state indicator is located to the right of the button. It illuminates amber as soon as the amplier reaches standby, and turns green when the amplier is fully on.
POWER
BALANCED SPEAKER OUTPUTS
CH
1
DO NOT
CONNECT ANY
TERMINAL TO
GROUND.
CLASS 2 WIRING
VAC,
CH
2
13
Table of Contents
6.2.2 Per channel control and monitoring
The following features are available per channel on the rear panel.
Attenuators – Individual attenuation for the two amplier channels. Range is 0 dB to -innity. The 12 o’clock position indicates -10 dB attenuation. The sensitivity for the amplier is 4 dBu when the attenuator is at 0 dB
and 14 dBu when the attenuator is at -10 dB.
SIG – The green indicator will be lit whenever the input signal is above the signal present threshold. Indication is
the same as the front panel indicator.
High-pass / Full-range – Selects either at down to 2 Hz or High Pass lter at 50 Hz.
70 V / Lo-Z – This switch denes the settings for the Rail Sensing Limiter (RSL).
* 70 V should be used for constant voltage systems and if full rated power into 8 or 16 ohms loads is required.
* Lo-Z should be used for rated power into 2 or 4 ohms loads. It can also be used to limit the maximum power
into 8 or 16 ohms loads.
If more than half the total power is required for one channel driving an impedance of 4 ohms or higher, then the 70 V setting can be used for this channel.
Operation into 2 ohms is not recommended when using 70 V mode.
For more information on asymmetric loading see Section 7.4.3.
Output – The detachable output block connectors are designed and approved for 41 Arms (much more than
the maximum capacity of the ampliers). Cables up to 8 mm2 (8 AWG) may be used. Please ensure that all leads
are securely attached inside the connector to avoid short circuits. Also verify that the loudspeakers are con­nected with the same polarity to avoid low frequency cancellation losses.
GPIO – The amplier comes with an Automatic Power On / Down APO / APD scheme triggered by the program
material, so in many applications external power control is not necessary. If remote power control is desired, then an external relay can be connected to the GPI control port.
14
7. Operation and performance
6.3 Input Signal Present Threshold (SPT)
As shipped the default input signal threshold is set at -56 dBu (-60 dB relative to 4 dBu, which is the sensitivity). This threshold applies to the input signal present indicators on the front and rear panels as well as to the Auto Power On / Down (APO / APD).
If this threshold is deemed too high or low, it can be trimmed by pressing and holding the power button for two
full seconds. The amplier will then sample the input signal and set the SPT threshold 6 dB above the sampled noise oor. The procedure should be done with all “front end” equipment on, but with no active signal input.
Please ensure that no audio is accidently passed during this calibration as that can lead to a high SPT that in turn could generate and store an undesirable threshold for APD.
A typical scenario for changing the default would be when the source has a very high noise oor. In this case,
adjusting the threshold prevents the noise from triggering a false APO. The calibration procedure detects the
higher noise oor and sets the SPT threshold at 6 dB above it.
7. Operation and performance
7.1 Introduction
The following sections provide comprehensive information on amplier connection, setup, operation, and
performance. The detailed information included here is essential to realizing the full functionality of the
E Series ampliers.
7.2 Operating precautions
• Make sure that the amplier is off or in standby mode before making any input or output connections.
• This amplier is equipped with a Universal Power Supply that handles nominal voltages from 100 V to 240 V @ 50 - 60 Hz. It will turn on between 85 V – 264 V. For full power it requires 100 V or more, but it
will remain functional at voltages above 60 V with reduced output power.
15
7. Operation and performance
POWER
CHANNEL 1
CHANNEL 2
-10dB -10dB
SIG
HIGH
PASS
70V
SIG
HIGH
PASS
70V
-Inf 0
-10dB
-Inf 0
-10dB
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 70 V 350 W
E 4:2 70 V 70 V 200 W 70 V 70 V 200 W
E 8:2 70 V 70 V 100 W 70 V 70 V 700 W
E 8: 2 70 V 70 V 0 W 70 V 70 V 800 W
E 12:2 70 V 70 V 200 W 70 V 70 V 1000 W
7.3 Signal flow and headroom
All E Series ampliers have the same signal ow and feature set, differing only in the ability to deliver power to
the loudspeakers.
Clip, Thermal &
Rail sense
Balanced input
terminal
(17.2 dBu
headroom)
High pass filter
(2 Hz / 50 Hz)
Attenuator
Rail Sense Limiter
(4 dBu for full
output Voltage)
This block also
implements the
protection
Bridged amplifier
(Gain depends
on RSL)
Loudspeaker
output terminal
On all E Series ampliers, the input stage has a relatively high sensitivity of 4 dBu (1.23 Vrms) for full power. However, the input can handle signals up to 17.2 dBu without clipping the input signal path. The amplier
applies low-distortion limiting if the input signal exceeds what is required to deliver full power. If compression
isn’t desired, use the input attenuator to trim the sensitivity. E Series ampliers easily achieve a high SPL
when driven with sources capable of 10 or 20 dBu output, such as professional mixing consoles or DSP units. However, consumer sources such as a CD player or an MP3 player will have a lower output, typically -10 dBV
or -7.8 dBu. This is not sufcient level to realize full power from an E Series amplier. In this scenario, the user
can get closer to maximum power output by putting the mode switch in the 70 V position without risk of delivering excessive power, even into a 2 or 4 ohm load.
7.4 Audio input and output connections, setup and features
7.4.1 Balanced / unbalanced Input connection
BALANCED INPUTS
CH
1
CH
2
Electronically balanced, Phoenix-type inputs are provided on all channels. Follow the +,– and Ground labels
when connecting the input signal.
If an unbalanced connection is desired this can be achieved by summing the minus (“COLD”) and Ground terminals and using the + terminal as the “HOT” signal. For the best possible performance, the summing of ground and minus wires should be done at the source unit end of the cable (e.g. a CD player).
Connectors are supplied for attaching cables to the inputs. Compatible input connectors are Phoenix Contacts,
Part number MSTB 2.5/3-STZ-5.08 , or Anytek OQ03545100CCG.
When linking the same source signal to several input channels, be aware that there is a limit to the number of channels an output source can “drive”. A typical output source (e.g. a DSP crossover unit) can drive up to four
amplier channels before line-drivers would be required to boost the signal.
16
7. Operation and performance
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 70 V 350 W
E 4:2 70 V 70 V 200 W 70 V 70 V 200 W
E 8:2 70 V 70 V 100 W 70 V 70 V 700 W
E 8: 2 70 V 70 V 0 W 70 V 70 V 800 W
E 12:2 70 V 70 V 200 W 70 V 70 V 1000 W
7.4.2 Output operation and connection
Detachable block-connectors with + and – poles are provided at each channel output for connection of the
speakers. If more conectors are needed, then these are compatible:
Phoenix 1709047, or Anytek KT02015000CCG.
Make sure that the speaker cables are connected correctly and tightly, and that accurate polarity is maintained to all speakers in the system.
As the amplier outputs produce high voltage, do not connect or disconnect speaker cables when the mains
power is on.
7.4.3 Output bridge mode and asymmetric loading
The E Series is designed with inherently bridged outputs for a high voltage swing, with full headroom accessed
in the 70 V mode. So, in some ways the amplier is a 4 channel amplier with permanently bridged outputs which turns it into a 2 channel amplier. This design also accommodates asymmetric loading, wherein only one
channel can be connected and draw all power from the power supply. Alternatively, one channel can be con-
nected and congured as a “high power” channel while another is connected and congured as a “low power”
channel. For example, a 4 ohm loudspeaker could draw all the power available from the power supply in one
channel when it is the only loudspeaker connected to the amplier. If another channel is connected, any power
used by this second “low power” channel will limit the “high power” channel from using all available power.
The power available in each channel is determined by the setting of the RSL switch and the impedance of the connected load. Power available per channel in some typical applications is shown in the following sample tables. Note that because the two channels are identical, the channels given below are reversible. (If settings of channel 2 are same as for channel 1 shown below, then options for channel 1 are same as for channel 2 below.) From one perspective, the functionality of asymmetric loading is very intuitive: essentially, power not used in one channel is available through the other channel, but within limits determined by the load impedances for each channel and the setting of the RSL switch. However, the possible combinations are many, and performance limitations may apply in some scenarios.
The tables below illustrate power levels available in different scenarios with different ampliers. These are not complete, but given only to illustrate the concept; more complete data for all three ampliers is given in
Appendix 8.3.
System example A: 70 V systems on both channels
17
7. Operation and performance
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 70 V 350 W
E 4:2 70 V 70 V 200 W 70 V 70 V 200 W
E 8:2 70 V 70 V 100 W 70 V 70 V 700 W
E 8: 2 70 V 70 V 0 W 70 V 70 V 800 W
E 12:2 70 V 70 V 200 W 70 V 70 V 1000 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 8 ohms 350 W*
E 4:2 70 V 70 V 300 W Lo-Z 8 ohms 100 W
E 8:2 70 V 70 V 200 W 70 V 8 ohms 600 W
E 12: 2 70 V 70 V 900 W Lo-Z 8 ohms 300 W
E 12: 2 70 V 70 V 600 W 70 V 8 ohms 600 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 70 V 350 W
E 4:2 70 V 70 V 200 W 70 V 70 V 200 W
E 8:2 70 V 70 V 100 W 70 V 70 V 700 W
E 8: 2 70 V 70 V 0 W 70 V 70 V 800 W
E 12:2 70 V 70 V 200 W 70 V 70 V 1000 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 8 ohms 350 W*
E 4:2 70 V 70 V 300 W Lo-Z 8 ohms 100 W
E 8:2 70 V 70 V 200 W 70 V 8 ohms 600 W
E 12: 2 70 V 70 V 900 W Lo-Z 8 ohms 300 W
E 12: 2 70 V 70 V 600 W 70 V 8 ohms 600 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4: 2 70 V 70 V 100 W 70 V 4 ohms 300 W*
E 8:2 70 V 70 V 300 W 70 V 4 ohms 500 W*
E 8:2 70 V 70 V 400 W Lo-Z 4 ohms 400 W
E 12:2 70 V 70 V 400 W 70 V 4 ohms 800 W*
E 12:2 70 V 70 V 600 W Lo-Z 4 ohms 600 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 70 V 350 W
E 4:2 70 V 70 V 200 W 70 V 70 V 200 W
E 8:2 70 V 70 V 100 W 70 V 70 V 700 W
E 8: 2 70 V 70 V 0 W 70 V 70 V 800 W
E 12:2 70 V 70 V 200 W 70 V 70 V 1000 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4:2 70 V 70 V 50 W 70 V 8 ohms 350 W*
E 4:2 70 V 70 V 300 W Lo-Z 8 ohms 100 W
E 8:2 70 V 70 V 200 W 70 V 8 ohms 600 W
E 12: 2 70 V 70 V 900 W Lo-Z 8 ohms 300 W
E 12: 2 70 V 70 V 600 W 70 V 8 ohms 600 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4: 2 70 V 70 V 100 W 70 V 4 ohms 300 W*
E 8:2 70 V 70 V 300 W 70 V 4 ohms 500 W*
E 8:2 70 V 70 V 400 W Lo-Z 4 ohms 400 W
E 12:2 70 V 70 V 400 W 70 V 4 ohms 800 W*
E 12:2 70 V 70 V 600 W Lo-Z 4 ohms 600 W
Channel 1 Channel 2
Model RSL switch Load type Power
available
RSL switch Load type Power
available
E 4 2 Lo-Z 4 ohms 200 W 70 V 8 ohms 200 W*
E 8:2 Lo-Z 4 ohms 400 W 70 V 8 ohms 400 W
E 8:2 Lo-Z 4 ohms 200 W* 70 V 8 ohms 600 W
E 12:2 Lo-Z 4 ohms 600 W 70 V 8 ohms 600 W
E 12:2 70 V 4 ohms 900 W* Lo-Z 8 ohms 300 W
System example B: 70 V system channel 1 plus one 8 ohm subwoofer (or other cabinet) channel 2
System example C: 70 V system channel 1 plus two 8 ohm subwoofers (or cabinets)
in parallel for 4 ohms channel 2
System example D: Two 8 ohm cabinets in parallel for 4 ohms channel 1 and one 8 ohm subwoofer (or cabinet) channel 2
*: Use of external limiter recommended with these examples. Otherwise, depending on the program material,
the amplier may temporarily try to deliver more power with resulting pumping.
7.4.4 Constant Voltage 70 V system setup and operation
When using E Series ampliers to drive constant voltage (high-impedance) speaker systems at 70 Vrms or 100 V peak, in most cases you can simply connect the speakers to the amplier output terminals, select the 70 V RSL setting, and place the amplier in service.
18
8. Appendix
Limiters - Limiting is applied to avoid distortion at the selected voltage limit threshold and to avoid hitting the rail if it has sagged below the selected threshold. Limiting also may be applied when maximum output current has been reached or when the mains voltage is too low to maintain required rail voltage. Limiting activity is shown by the front panel Limiter LED.
7.4.5 Output Current Peak Limiter (CPL)
The Current Peak Limiter (CPL) ensures that the amplier will not be damaged by trying to deliver current to the outputs exceeding the physical limitations of the output devices. The CPL keeps the amplier within the Safe
Operating Area. The CPL is non-adjustable and has different limit values depending on model type. The maximum output current values for the three E Series models are:
• E 12:2, 18 Arms per channel
• E 8:2, 16 Arms per channel
• E 4:2, 14 Arms per channel
8. Appendix
8.1 Maintenance
During normal operation your E Series amplier will provide trouble-free service. The only user maintenance
required is to periodically vacuum clean the air inlets in the front.
In some extreme cases it may be necessary for authorized service personnel to clean the inside of the amplier
in order to safely remove dust or other build ups which may occur during prolonged normal usage. If you are
using your amplier in a heavy duty application, it is recommended to have your amplier cleaned inside every
3 years purely as a preventative action.
19
8. Appendix
E 4:2
Level L oad Rated power
Line Cu rrent *2) Wat t *1) Thermal Dissipation
120 V AC 23 0 VAC In Out Dissipated BTU/ hr kCal/hr
Amp (I)
Standby 0.32 0.7 0 0.7 2 2.5 0.6
0.016 0.4 0 0.38 1.3 0.3
Power on, Id ling 0.1 8 6 21.5 0 21. 5 73.3 18.5
0.306 22.4 0 22.4 76.6 19.3
Amp (I) Watt
Pink Ps eudo
Noise (1/8)
70 V / Ch. 200 x 2 0.7 80 50 30 101 26
70 V / Ch. 200 x 2 1.1 86 50 36 123 31
16 ohms / Ch. 200 x 2 0.7 80 50 30 101 26
16 ohms / Ch. 200 x 2 1.1 85 50 35 118 30
8 ohms / Ch. 200 x 2 0.7 81 50 31 105 26
8 ohms / Ch. 200 x 2 1.1 87 50 37 125 32
4 ohms / Ch. 200 x 2 0.8 89 50 39 13 3 34
4 ohms / Ch. 200 x 2 1.2 92 50 42 144 36
2 ohms / Ch. 200 x 2 0.8 98 50 48 16 5 42
2 ohms / Ch. 200 x 2 1.3 100 50 50 172 43
*1) The ampli er’s PSU op erates as a non-r esist ive load, so the ca lculation “Volts x Amps = Watts” wou ld not be c orrec t. Instea d, meas ured an d speci ed he re is what is k nown as th e “Active Powe r” in the a mpli er providing useful, real-world valu es of powe r consumptio n and hea t dissi patio n.
*2) Curre nt draw g ures me asure d at 230 V as we ll as 120 V. The efcienc y is simi lar, but not identic al for th e two sce nari os. The e fci ency fo r 100 V mains i s very
simil ar to that of 120 V.
E 8:2
Level L oad Rated power Line Cu rrent *2) Watt *1) Thermal Dissipation
120 V AC 23 0 VAC In Out Dissipated BTU/ hr kCal/hr
Amp (I)
Standby 0.033 0.72 0.0 0.7 2.5 0.6
0.019 0.38 0.0 0.4 1. 3 0.3
Power on, Id ling 0.1 8 3 20.7 0.0 20.7 70.5 17. 8
0.3 15 21. 9 0.0 21. 9 74 .7 18.8
Amp (I) Watt
Pink Ps eudo
Noise (1/8)
70 V / Ch. 400 x 2 1.2 13 9 100 39 134 34
70 V / Ch. 400 x 2 2 .1 148 100 48 163 41
16 ohms / Ch. 310 x 2 0.9 112 78 35 119 30
16 ohms / Ch. 310 x 2 1.8 118 78 41 14 0 35
8 ohms / Ch. 400 x 2 1. 2 141 10 0 41 140 35
8 ohms / Ch. 400 x 2 2.0 148 10 0 48 164 41
4 ohms / Ch. 400 x 2 1.3 14 9 100 49 166 42
4 ohms / Ch. 400 x 2 2.1 15 5 100 55 187 47
2 ohms / Ch. 400 x 2 1.4 17 2 100 72 244 61
2 ohms / Ch. 400 x 2 2. 3 174 100 74 254 64
*1) The ampli er’s PSU operate s as a non-resist ive load, so the ca lcula tion “Volts x Amps = Watts” wou ld not be c orrec t. Instea d, meas ured an d speci ed he re is what is k nown as th e “Active Powe r” in the a mpli er providing useful, real-world valu es of powe r consumptio n and hea t dissi patio n.
*2) Curre nt draw g ures me asure d at 230 V as we ll as 120 V. The efcienc y is simi lar, but not identic al for th e two sce nari os. The e fci ency fo r 100 V mains i s very
simil ar to that of 120 V.
8.2 Current draw and thermal dissipation
20
8. Appendix
E 12:2
Level L oad Rated power Line Cu rrent *2) Watt *1) Thermal Dissipation
120 V AC 23 0 VAC In Out Dissipated BTU/ hr kCal/hr
Amp (I)
Standby 0.032 0.70 0.0 0.7 2.4 0.6
0.019 0.31 0.0 0.3 1.1 0.3
Power on, Id ling 0.1 8 3 20.7 0.0 20.7 70.5 17. 8
0.3 15 21. 9 0.0 21. 9 74 .7 18.8
Amp (I) Watt
Pink Ps eudo
Noise (1/8)
70 V / Ch. 600 x 2 1.8 210 15 0 60 205 52
70 V / Ch. 600 x 2 2.9 223 150 73 248 62
16 ohms / Ch. 33 x 2 1.1 12 8 83 45 15 4 39
16 ohms / Ch. 33 x 2 1. 8 136 83 54 18 3 46
8 ohms / Ch. 600 x 2 1. 8 209 150 59 202 51
8 ohms / Ch. 600 x 2 2.9 219 150 69 237 60
4 ohms / Ch. 600 x 2 1. 9 222 150 72 245 62
4 ohms / Ch. 600 x 2 2.9 226 150 76 259 65
2 ohms / Ch. 600 x 2 2.0 249 150 99 337 85
2 ohms / Ch. 600 x 2 3 .1 252 150 10 2 349 88
*1) The ampli er’s PSU operate s as a non-resist ive load, so the ca lcula tion “Volts x Amps = Watts” wou ld not be c orrec t. Instea d, meas ured an d speci ed he re is what is k nown as th e “Active Powe r” in the a mpli er providing u seful, real-world valu es of powe r consumptio n and hea t dissi patio n.
*2) Curre nt draw g ures me asure d at 230 V as we ll as 120 V. The efcienc y is simi lar, but not identic al for th e two sce nari os. The e fci ency fo r 100 V mains i s very
simil ar to that of 120 V.
8.3 Asymmetric loading data
Pages 22-24 following list possible settings and load combinations for asymmetric loading. For an explanation of asymmetric loading, please see Section 7.4.3.
For values followed by an asterisk (*), use of an external limiter may be required for optimum performance.
All values assume amplier is being driven by a signal from a professional mixing console or DSP unit. Values will differ if driven by a consumer device, such as an iPod, with signicantly lower output (2.71 dBu instead of
the required 4 dBu).
21
8. Appendix
E 4:2
Channel RSL switch Channel load Power output
Ch. 1 Ch. 2 Ch. 1 Ch. 2 Ch.1 Ch. 2
70 V 70 V 70 V 70 V 0 W @ 70 V 400 W @ 70 V
70 V 70 V 70 V 70 V 50 W @ 70 V 350 W @ 70 V
70 V 70 V 70 V 70 V 100 W @ 70 V 300 W @ 70 V
70 V 70 V 70 V 70 V 150 W @ 70 V 250 W @ 70 V
70 V 70 V 70 V 70 V 200 W @ 70 V 200 W @ 70 V
70 V Lo-Z 70 V 2 ohms 100 W @ 70 V 300 W @ 2 ohms*
70 V Lo-Z 70 V 2 ohms 50 W @ 70 V 350 W @ 2 ohms*
70 V Lo-Z 70 V 4 ohms 350 W @ 70 V 50 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 300 W @ 70 V 100 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 250 W @ 70 V 150 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 200 W @ 70 V 200 W @ 4 ohms
70 V 70 V 70 V 4 ohms 150 W @ 70 V 250 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 100 W @ 70 V 300 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 50 W @ 70 V 350 W @ 4 ohms*
70 V Lo-Z 70 V 8 ohms 350 W @ 70 V 50 W @ 8 ohms*
70 V Lo-Z 70 V 8 ohms 300 W @ 70 V 100 W @ 8 ohms
70 V 70 V 70 V 8 ohms 250 W @ 70 V 150 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 200 W @ 70 V 200 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 150 W @ 70 V 250 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 50 W @ 70 V 350 W @ 8 ohms*
70 V Lo-Z 70 V 16 ohms 375 W @ 70 V 25 W @ 16 ohms*
70 V Lo-Z 70 V 16 ohms 350 W @ 70 V 50 W @ 16 ohms
70 V 70 V 70 V 16 ohms 300 W @ 70 V 100 W @ 16 ohms*
70 V 70 V 70 V 16 ohms 200 W @ 70 V 200 W @ 16 ohms*
70 V 70 V 70 V 16 ohms 90 W @ 70 V 310 W @ 16 ohms
70 V Lo-Z 4 ohms 16 ohms 375 W @ 4 ohms* 25 W @ 16 ohms*
70 V Lo-Z 4 ohms 16 ohms 350 W @ 4 ohms* 50 W @ 16 ohms
70 V 70 V 4 ohms 16 ohms 300 W @ 4 ohms* 100 W @ 16 ohms*
Lo-Z 70 V 4 ohms 16 ohms 200 W @ 4 ohms 200 W @ 16 ohms*
Lo-Z 70 V 4 ohms 16 ohms 90 W @ 4 ohms* 310 W @ 16 ohms
Lo-Z Lo-Z 4 ohms 16 ohms 200 W @ 4 ohms 50 W @ 16 ohms
70 V Lo-Z 4 ohms 8 ohms 350 W @ 4 ohms 50 W @ 8 ohms*
70 V Lo-Z 4 ohms 8 ohms 300 W @ 4 ohms* 100 W @ 8 ohms
70 V 70 V 4 ohms 8 ohms 250 W @ 4 ohms* 150 W @ 8 ohms*
70 V 70 V 4 ohms 8 ohms 225 W @ 4 ohms* 175 W @ 8 ohms*
Lo-Z 70 V 4 ohms 8 ohms 200 W @ 4 ohms 200 W @ 8 ohms*
Lo-Z Lo-Z 4 ohms 8 ohms 200 W @ 4 ohms 100 W @ 8 ohms
70 V Lo-Z 4 ohms 4 ohms 300 W @ 4 ohms 100 W @ 4 ohms*
70 V Lo-Z 4 ohms 4 ohms 250 W @ 4 ohms* 150 W @ 4 ohms*
Lo-Z Lo-Z 4 ohms 4 ohms 200 W @ 4 ohms 200 W @ 4 ohms
70 V 70 V 8 ohms 16 ohms 300 W @ 8 ohms* 100 W @ 16 ohms*
70 V Lo-Z 8 ohms 16 ohms 200 W @ 8 ohms* 200 W @ 16 ohms*
Lo-Z 70 V 8 ohms 16 ohms 100 W @ 8 ohms 300 W @ 16 ohms
70 V 70 V 8 ohms 8 ohms 200 W @ 8 ohms* 200 W @ 8 ohms*
70 V Lo-Z 8 ohms 8 ohms 300 W @ 8 ohms* 100 W @ 8 ohms
70 V Lo-Z 8 ohms 8 ohms 350 W @ 8 ohms* 50 W @ 8 ohms*
Lo-Z Lo-Z 2 ohms 16 ohms 350 W @ 2 ohms* 50 W @ 16 ohms
Lo-Z Lo-Z 2 ohms 8 ohms 300 W @ 2 ohms* 100 W @ 8 ohms
Lo-Z Lo-Z 2 ohms 4 ohms 200 W @ 2 ohms* 200 W @ 4 ohms*
Lo-Z Lo-Z 2 ohms 2 ohms 200 W @ 2 ohms* 200 W @ 2 ohms*
70 V unused 16 ohms unused 310 W @ 16 ohms unused
70 V unused 8 ohms unused 400 W @ 8 ohms* unused
70 V unused 4 ohms unused 400 W @ 4 ohms* unused
Lo-Z unused 2 ohms unused 400 W @ 2 ohms unused
70 V Lo-Z 16 ohms 16 ohms 310 W @ 16 ohms 50W @ 16 ohms
70 V 70 V 16 ohms 16 ohms 200 W @ 16 ohms* 200 W @ 16 ohms*
22
E 8:2
Channel RSL switch Channel load Power output
Ch. 1 Ch. 2 Ch. 1 Ch. 2 Ch.1 Ch. 2
unused 70 V unused 70 V unused 800 W @ 70 V
70 V 70 V 70 V 70 V 50 W @ 70 V 750 W @ 70 V
70 V 70 V 70 V 70 V 100 W @ 70 V 700 W @ 70 V
70 V 70 V 70 V 70 V 150 W @ 70 V 650 W @ 70 V
70 V 70 V 70 V 70 V 200 W @ 70 V 600 W @ 70 V
70 V 70 V 70 V 70 V 300 W @ 70 V 500 W @ 70 V
70 V 70 V 70 V 70 V 400 W @ 70 V 400 W @ 70 V
70 V Lo-Z 70 V 2 ohms 200 W @ 70 V 600 W @ 2 ohms
70 V Lo-Z 70 V 2 ohms 300 W @ 70 V 500 W @ 2 ohms*
70 V Lo-Z 70 V 2 ohms 400 W @ 70 V 400 W @ 2 ohms*
70 V Lo-Z 70 V 2 ohms 500 W @ 70 V 300 W @ 2 ohms*
70 V Lo-Z 70 V 4 ohms 600 W @ 70 V 200 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 500 W @ 70 V 300 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 450 W @ 70 V 350 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 400 W @ 70 V 400 W @ 4 ohms
70 V 70 V 70 V 4 ohms 300 W @ 70 V 500 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 200 W @ 70 V 600 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 150 W @ 70 V 650 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 100 W @ 70 V 700 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 50 W @ 70 V 750 W @ 4 ohms*
70 V Lo-Z 70 V 8 ohms 700 W @ 70 V 100 W @ 8 ohms*
70 V Lo-Z 70 V 8 ohms 600 W @ 70 V 200 W @ 8 ohms
70 V 70 V 70 V 8 ohms 500 W @ 70 V 300 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 400 W @ 70 V 400 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 300 W @ 70 V 500 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 200 W @ 70 V 600 W @ 8 ohms
70 V Lo-Z 70 V 16 ohms 750 W @ 70 V 50 W @ 16 ohms*
70 V Lo-Z 70 V 16 ohms 700 W @ 70 V 100 W @ 16 ohms
70 V 70 V 70 V 16 ohms 650 W @ 70 V 150 W @ 16 ohms*
70 V 70 V 70 V 16 ohms 600 W @ 70 V 200 W @ 16 ohms*
70 V 70 V 70 V 16 ohms 490 W @ 70 V 310 W @ 16 ohms
70 V Lo-Z 4 ohms 16 ohms 750 W @ 4 ohms* 50 W @ 16 ohms*
70 V Lo-Z 4 ohms 16 ohms 700 W @ 4 ohms* 100 W @ 16 ohms
70 V 70 V 4 ohms 16 ohms 650 W @ 4 ohms* 150 W @ 16 ohms*
70 V 70 V 4 ohms 16 ohms 490 W @ 4 ohms* 310 W @ 16 ohms
Lo-Z 70 V 4 ohms 16 ohms 400 W @ 4 ohms 310 W @ 16 ohms
Lo-Z Lo-Z 4 ohms 16 ohms 400 W @ 4 ohms 100 W @ 16 ohms
70 V Lo-Z 4 ohms 8 ohms 700 W @ 4 ohms* 100 W @ 8 ohms*
70 V Lo-Z 4 ohms 8 ohms 600 W @ 4 ohms* 200 W @ 8 ohms
70 V 70 V 4 ohms 8 ohms 500 W @ 4 ohms* 300 W @ 8 ohms*
70 V 70 V 4 ohms 8 ohms 450 W @ 4 ohms* 350 W @ 8 ohms*
Lo-Z 70 V 4 ohms 8 ohms 400 W @ 4 ohms 400 W @ 8 ohms*
Lo-Z Lo-Z 4 ohms 8 ohms 400 W @ 4 ohms 200 W @ 8 ohms
70 V Lo-Z 4 ohms 4 ohms 600 W @ 4 ohms* 200 W @ 4 ohms
70 V Lo-Z 4 ohms 4 ohms 500 W @ 4 ohms* 300 W @ 4 ohms*
Lo-Z Lo-Z 4 ohms 4 ohms 400 W @ 4 ohms 400 W @ 4 ohms
70 V 70 V 8 ohms 16 ohms 620 W @ 8 ohms 180 W @ 16 ohms*
70 V 70 V 8 ohms 16 ohms 490 W @ 8 ohms* 310 W @ 16 ohms
70 V 70 V 8 ohms 8 ohms 400 W @ 8 ohms* 400 W @ 8 ohms*
70 V Lo-Z 8 ohms 8 ohms 600 W @ 8 ohms 200 W @ 8 ohms
Lo-Z Lo-Z 2 ohms 8 ohms 600 W @ 2 ohms 200 W @ 8 ohms
Lo-Z Lo-Z 2 ohms 4 ohms 400 W @ 2 ohms* 400 W @ 4 ohms
Lo-Z Lo-Z 2 ohms 2 ohms 400 W @ 2 ohms* 400 W @ 2 ohms*
8. Appendix
23
8. Appendix
E 12:2
Channel RSL switch Channel load Power output
Ch. 1 Ch. 2 Ch. 1 Ch. 2 Ch.1 Ch. 2
unused 70 V 70 V 70 V unused 1200 W @ 70 V
70 V 70 V 70 V 70 V 100 W @ 70 V 1100 W @ 70 V
70 V 70 V 70 V 70 V 200 W @ 70 V 1000 W @ 70 V
70 V 70 V 70 V 70 V 300 W @ 70 V 900 W @ 70 V
70 V 70 V 70 V 70 V 400 W @ 70 V 800 W @ 70 V
70 V 70 V 70 V 70 V 500 W @ 70 V 700 W @ 70 V
70 V 70 V 70 V 70 V 600 W @ 70 V 600 W @ 70 V
70 V Lo-Z 70 V 2 ohms 600 W @ 70 V 600 W @ 2 ohms
70 V Lo-Z 70 V 4 ohms 1000 W @ 70 V 200 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 900 W @ 70 V 300 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 800 W @ 70 V 400 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 700 W @ 70 V 500 W @ 4 ohms*
70 V Lo-Z 70 V 4 ohms 600 W @ 70 V 600 W @ 4 ohms
70 V 70 V 70 V 4 ohms 400 W @ 70 V 800 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 300 W @ 70 V 900 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 200 W @ 70 V 1000 W @ 4 ohms*
70 V 70 V 70 V 4 ohms 100 W @ 70 V 1100 W @ 4 ohms*
70 V 70 V unused 4 ohms unused 1200 W @ 4 ohms
70 V Lo-Z 70 V 8 ohms 1050 W @ 70 V 150 W @ 8 ohms*
70 V Lo-Z 70 V 8 ohms 900 W @ 70 V 300 W @ 8 ohms
70 V 70 V 70 V 8 ohms 800 W @ 70 V 400 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 700 W @ 70 V 500 W @ 8 ohms*
70 V 70 V 70 V 8 ohms 600 W @ 70 V 600 W @ 8 ohms
70 V Lo-Z 70 V 16 ohms 1125 W @ 70 V 75 W @ 16 ohms*
70 V Lo-Z 70 V 16 ohms 1050 W @ 70 V 150 W @ 16 ohms
70 V 70 V 70 V 16 ohms 1000 W @ 70 V 200 W @ 16 ohms*
70 V Lo-Z 70 V 16 ohms 950 W @ 70 V 250 W @ 16 ohms*
70 V Lo-Z 70 V 16 ohms 890 W @ 70 V 310 W @ 16 ohms
70 V Lo-Z 4 ohms 16 ohms 1100 W @ 4 ohms* 100 W @ 16 ohms*
70 V Lo-Z 4 ohms 16 ohms 1050 W @ 4 ohms* 150 W @ 16 ohms
70 V 70 V 4 ohms 16 ohms 1000 W @ 4 ohms* 200 W @ 16 ohms*
70 V 70 V 4 ohms 16 ohms 890 W @ 4 ohms* 310 W @ 16 ohms
Lo-Z 70 V 4 ohms 16 ohms 600 W @ 4 ohms 310 W @ 16 ohms
70 V Lo-Z 4 ohms * ohms 1000 W @ 4 ohms* 200 W @ 8 ohms*
70 V Lo-Z 4 ohms * ohms 900 W @ 4 ohms* 300 W @ 8 ohms*
70 V 70 V 4 ohms 8 ohms 800 W @ 4 ohms* 400 W @ 8 ohms*
70 V 70 V 4 ohms 8 ohms 700 W @ 4 ohms* 500 W @ 8 ohms*
Lo-Z 70 V 4 ohms 8 ohms 600 W @ 4 ohms 600 W @ 8 ohms
Lo-Z Lo-Z 4 ohms 8 ohms 600 W @ 4 ohms 300 W @ 8 ohms
70 V Lo-Z 4 ohms 4 ohms 900 W @ 4 ohms 300 W @ 4 ohms
70 V Lo-Z 4 ohms 4 ohms 800 W @ 4 ohms 400 W @ 4 ohms
70 V Lo-Z 4 ohms 4 ohms 700 W @ 4 ohms 500 W @ 4 ohms
Lo-Z Lo-Z 4 ohms 4 ohms 600 W @ 4 ohms 600 W @ 4 ohms
70 V 70 V 8 ohms 16 ohms 620 W @ 8 ohms 310 W @ 16 ohms
70 V 70 V 8 ohms 8 ohms 600 W @ 8 ohms 600 W @ 8 ohms
70 V Lo-Z 8 ohms 8 ohms 600 W @ 8 ohms 300 W @ 8 ohms
Lo-Z 70 V 2 ohms 8 ohms 600 W @ 2 ohms 600 W @ 8 ohms
Lo-Z Lo-Z 2 ohms 4 ohms 600 W @ 2 ohms 600 W @ 4 ohms
Lo-Z Lo-Z 2 ohms 2 ohms 600 W @ 2 ohms 600 W @ 2 ohms
70 V 70 V 16 ohms 16 ohms 310 W @ 16 ohms 310 W @ 16 ohms
24
9. Technical specifications
9. Technical specifications
Model
Number of channels
Peak total output all channels driven
Peak output voltage per channel
Max. output current per channel
Max. Ou tput Powe r Per ch. (all ch.’s driven)
2 ohms (Lo-Z m ode)
4 ohms (Lo-Z mode)
8 ohms (Hi-Z mode)
16 ohms (Hi-Z mode)
70 V (Hi-Z mode)
8 ohms (Lo-Z mo de)
16 oh ms (Lo-Z mode)
Performan ce
THD 20 Hz - 20 kHz for 1 W
THD at 1 kHz and 1 dB below clipping
Signal To Noise Ratio
Channel separation (Crosstalk) at 1 kHz
Frequency response
Input impedance
Common Mode Rejection (CMR)
Output impedance
Gain, Sensitivity and Limiters
Limit and gain switch (per channel)
VPL for Hi-Z m ode
VPL for Lo-Z m ode
Sensi tivit y for 70 V out in H i-Z mode
Sensi tivit y for full p ower into 4 /8/16 ohms in Lo-Z mo de
Gain in H i-Z mode
Gain in Lo -Z mode
Level adjustment (per channel)
E 12:2 E 8:2 E 4:2
2 2 2
120 0 W 800 W 400 W
100 V / 70 Vrms 100 V / 70 Vrms 100 V / 70 Vrms
18 Ar ms 16 Ar ms 11 A rms
600 400 200
600 400 200
600 400 200
310 290 200
600 400 20 0
300 200 100
150 100 50
<0.1% <0.1% <0.1%
<0.05% <0.05% <0.05%
>112 dBA >112 dBA >112 dBA
>70 dB >70 dB >70 dB
2 Hz - 40 kHz 2 Hz - 40 kHz 2 Hz - 40 kHz
20 kOhm 20 kOhm 20 kOhm
50 dB 50 dB 50 dB
25 mOhm 25 mOhm 25 mOhm
2 pos: Lo-Z and Hi-Z 2 pos: Lo-Z and Hi-Z 2 pos: Lo-Z and Hi-Z
100 V 100 V 100 V
69.3 V 56.6 V 40.0 V
4 dBu 4 dBu 4 dB u
4 dBu 4 dBu 4 dB u
35.2 dBu 35.2 dBu 35.2 dBu
32.0 dB 30.3 dB 2 7. 2 d B
Rear pa nel poten tiomete r, detented f rom -inf to 0 dB
Connectors and switches
Input connectors (per ch.)
Output connectors (per ch.)
High pas s  lter
Power control
GPI (power control input)
GPO (pow er state ou tput)
Cooling
Power
Nominal voltage
Operating voltage
Standby consumption
Mains connector
Dimensions
Weight
Finish
Approvals
Warranty
All spe cific ation s are subj ect to c hange wi thout n otice .
3-pin detachable screw terminals, electronically balanced
2-pin detachable screw terminals
Fixed at 35 Hz, switchable per channel
Can be used to go between standby and ON
Contact closure type, 2-pin detachable screw terminal, controls the power state
Contact closure type, 2-pin detachable screw terminal, for external monitoring of the power state
Single f an, fron t to rear ai r ow, no  lter r equire d, tempe rature c ontroll ed spe ed
100 - 240 VAC 100 - 240 VAC 100 - 240 VAC
70 - 265 VAC 70 - 265 VAC 70 - 265 VAC
<1 W <1 W <1 W
IEC inle t
W: 483 mm (19”), H: 44 mm (1 U), D: 276 mm (10.9”)
4.2 kg (9.3 lbs.) 4.1 kg (9 lbs.) 4 kg (8.8 l bs.)
Dark grey aluminium front and black steel chassis
CE
3 years, c ompon ents and f actor y workm anship. S ee full w arran ty state ment.
25
10. Warranty
10. Warranty
General
This product is manufactured by Lab.gruppen, and it is warranted to be free from any defects caused by components or factory workmanship, under normal use and service, for a period of three (3) years from date of purchase from an authorized Lab.gruppen dealer.
If the product fails to perform as specied during the warranty period, Lab.gruppen will undertake to repair, or
at its option, replace this product at no charge to its owner, provided the unit is returned undamaged, shipping prepaid, to an authorized service facility or to the factory.
This warranty shall be null and void if the product is subjected to: repair work or alteration by a person other than those authorized by us; mechanical damage including shipping accidents; war, civil insurrection, misuse, abuse, operation with incorrect AC voltage, incorrect connections or accessories; operation with faulty associated equipment; or exposure to inclement weather conditions. Damage due to normal wear and tear is not covered by the warranty. Units on which the serial number has been removed or defaced will not be eligible for warranty service.
Lab.gruppen shall not be responsible for any incidental or consequential damages. Lab.gruppen’s responsibility is limited to the product itself. Lab.gruppen takes no responsibility for any loss due to cancellation of any events,
or rent of replacement equipment or costs due to a third party’s or customer’s loss of prot, or any other indirect
cost or losses however incurred.
Lab.gruppen reserves the right to make changes or improvements in design or manufacturing without assuming any obligation to change or improve products previously manufactured.
This warranty is exclusive, and no other warranty is expressed or implied. This warranty does not affect the customer’s statutory rights.
International warranties
Please contact your supplier or distributor for this information, as rights and disclaimers may vary from country to country.
26
11. Service
11. Service
International
If your Lab.gruppen product requires repair, contact your Lab.gruppen dealer or distributor. Find your local distributor or sales representative via http://labgruppen.com/distributors/. A full listing of service centre is
available at http://labgruppen.com/support/nd_service_centre/.
Factory service
In the event a Lab.gruppen product requires factory service, you may contact Lab.gruppen’s service department for return instructions and a Return Authorization number.
Please note for product return:
1. Use the original packing.
2. Include a copy of the sales receipt, your name, return address, phone and fax number, email address and description of the defect.
3. Mark the Return Authorization number on the outside of the packing.
4. Ship the product prepaid to:
Lab.gruppen AB Faktorvägen 1 SE-434 37 Kungsbacka Sweden Phone: +46 300 56 28 00 Fax: +46 300 56 28 99
service@labgruppen.com www.labgruppen.com
IDEEA and RSL are trademarks of Lab.gruppen AB.
All other trademarks remain the property of their respective owners. Copyright © 2012 Lab.gruppen AB. All rights reserved.
27
Lab .grup pen a b ► Sw eden
internationaL contact ► info@Labgruppen.com
uS con tact ► info@tcg-america S.com
www.Labgruppen.com
Rev. 1.0.0
Item no. OM-ES
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