Itec IDA 4 User manual

IDA 4 / IDA 8_EN_2022/12_REV_2023/04
POWER AMPLIFIER
ITEC IDA 4 / IDA 8
MANUAL
Designed and Manufactured by
ITEC Tontechnik und
Industrieelektronik GesmbH
8200 Laßnitzthal 300
Austria / Europe

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IDA 4 / IDA 8_EN_2022/12_REV_2023/04
ITEC IDA 4 / IDA 8 - INTRODUCTION
Dear Customer!
The IDA amplifier series is ITEC‘s latest digital amplifier solution, specially designed for use with fixed
installations, which thanks to innovative technology represents a highly e󰀩cient and therefore particular-
ly energy-saving solution that can also cover a high power density with a small housing size. The built-in
Class D modules are characterized by very high e󰀩ciency, excellent sound quality and perfect dynamics.
The individual channels can be bridged, which results in a high level of flexibility in terms of the desired
output power.
Please read this instruction manual carefully and observe all instructions in particular those safeties related
to ensure a long lasting and trouble-free operation
Your ITEC acoustics team
ITEC IDA 4 / IDA 8 – Features
• 230 VAC power supply
• Mute and switch o󰀨via external contact
• Control LEDs for all signal and operating states
• Monitoring contacts for operation and error messages
• Balanced inputs
• Up to 8 amplifier channels in a 2U 19 inch housing
• Installation depth 325 mm
• All connections with plug-in terminals
• Protection circuits: Automatic switch-o󰀨in the event of overtemperature, overload and short circuits
• 4 or 8 amplifier channels
• Bridged or parallel connection possible
• Gain of each channel individually adjustable

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ITEC IDA 4 / IDA 8
Safety instructions
Please read this instruction manual carefully before installation and putting the “ITEC IDA” amplifier
into operation. Keep this document easy to find on a safe place to have it available as a later reference.
Instruct all persons dealing with this device and make them familiar with its use and in particular with the
safety regulations.
When installing the device, local connection conditions, required protective measures and all relevant
standards must be observed.
Do not block, cover or obstruct the vent slots: The air circulation has to remain ensured.
The device is designed for installations in 19“ cabinets / racks / frame / housing. Improper installations in
furniture, cabinets or distribution systems as well as a free putting have to be avoided.
Operate the device only via a grounded safety power outlet. Make sure the power cable is not damaged.
Never remove the protective conductor from the mains cable.
Before connecting to the mains supply check that the data on the backside of the device match with the local
network.
The device must necessarily be checked by trained personnel in case:
The power cable or plug are damaged, small objects or liquids got into the device, the device operates in a
di󰀨erent way than usual, the device was exposed to a severe impact or the housing has been damaged.
Extended storage or operating in rooms with high humidity, during rain or under the influence of splash water
can lead to damages or malfunctions.
Do not apply temperatures above 50 °C, humidity larger than 95% or rain to the device.
Never try to open the device by force or by unscrewing. The product does not contain parts that can be
repaired by amateurs. Please contact the manufacturer or a local distributor.
For cleaning use a soft, dry cloth only. Never use cleaning agents or solvents which attack the surface or
could enter the device. Unplug the device before cleaning.
NOTE: Before carrying out any modifications of the device by a specialist, the device has to be disconnected
from all power sources.

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ITEC IDA 4 / IDA 8 - FRONT VIEW
INFORMATION
LED Designation Description
1 / 7 Operate/Mute/Standby green = normal mode
yellow = muted
red = switched o󰀨
2-5 / 8-11 CH1-4 Signal/Clip
CH5-8 Signal/Clip
green = input signal
yellow = clipping
6 / 12 Fault red = error
1
6
2-5

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ITEC IDA 4 / IDA 8
IDA-4
7
12
8-11

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IDA 4 / IDA 8_EN_2022/12_REV_2023/04
ITEC IDA 4 / IDA 8 - BACK VIEW
Terminal Block Pin Des. Description
Audio In A
1 IN 1+ Analog audio input 1, positive
2 GND Signal ground
3 IN1 - Analog audio input 1, negative
4 IN 2+ Analog audio input2, positive
5 GND Signal ground
6 IN 2- Analog audio input 2, negative
7 IN 3+ Analog audio input 3, positive
8 GND Signal ground
9 IN 3- Analog audio input 3, negative
10 IN 4+ Analog audio input 4, positive
11 GND Signal ground
12 IN 4- Analog audio input 4, negative
Terminal Block Pin Des. Description
Audio Out F
1 OUT 1+ speaker line/output 1, positive
2 OUT 1- speaker line/output 1, negative
3 OUT 2+ speaker line/output 2, positive
4 OUT 2- speaker line/output 2, negative
5 OUT 3+ speaker line/output 3, positive
6 OUT 3- speaker line/output 3, negative
7 OUT 4+ speaker line/output 4, positive
8 OUT 4- speaker line/output 4, negative
Terminal Block Description
Supply G
C19/C20 connectors
100-240VAC 50-60Hz
Max. 16A current consumption
Terminal Block Switch Des. Description
Volume
Gain C
1 IN 1 gain A +3 dB +9 dB (1+2)
2 IN 1 gain B +6 dB
3 IN 2 gain A +3 dB +9 dB (3+4)
4 IN 2 gain B +6 dB
5 IN 3 gain A +3 dB +9 dB (5+6)
6 IN 3 gain B +6 dB
7 IN 4 gain A +3 dB +9 dB (7+8)
8 IN 4 gain B +6 dB
Terminal Block Switch Des. Description
Mode D
1 IN 1&2 IN 1 on channel 1&2
2 IN 1&3 IN 1 on channel 1&3
3 IN 3&4 IN 3 on channel 3&4
4 IN 2&4 IN 2 on channel 2&4
5 IN 1&4 IN 1 on channel 1&4
Terminal Block Pin Des. Description
Control I/O E
1FLT+
Collector Optocoupler for error status
closed = ok, open = error
2FLT-Emitter
3 OP+ Collector Optocoupler for operating status
closed = ok, open = switched o󰀨
4 OP- Emitter
5 !OFF Switch o󰀨power supply
open = switched on, GND = switched o󰀨
6 !MUTE Switch o󰀨power amplifier
open = switched on, GND = switched o󰀨
7 GND Signal ground
8 10-24V Reserved, no connection required
Terminal Block Position Description
Volume
Control
(per
channel)
B
0 -19,6 dB
1 -14,2 dB
2 -10,9 dB
3 -9,1 dB
4 -4,7 dB
5 -4,1 dB
6 -3,6 dB
7 -3,3 dB
8 -0,1 dB
9 0 dB
Terminal designation
G

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ITEC IDA 4 / IDA 8

 

 
A
F
B
E
C D

 

 

 

 

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ITEC IDA 4 / IDA 8
Variants
Designation Output power Ausgangsleistung
IDA 4-600 4x150W @ 4
IDA 4-3000 4x750W @ 4
IDA 8-1200 8x150W @ 4
IDA 8-3600 4x750W @ 44x150W @ 4+ 4x750W @ 4
IDA 8-6000 8x750W @ 4
Furthermore, individual channels of the modules can be bridged or operated in parallel.
This allows the following variants to be realized:
IDA 4 and IDA 8 di󰀨er in the number of modules that can be used. These modules are completely independent in
terms of function and connection terminals. With the IDA 4 either a 4x150W or a 4x750W module can be installed. The
IDA 8 has two of these modules.
This results in the following variants:
4x150W Module 4x750W Module
1x bridged 2x150W @ 4+ 1x300W @ 82x750W @ 4+ 1x1400W @ 8
2x bridged 2x300W @ 82x1400W @ 8
1x parallel 2x150W @ 4+ 1x300W @ 22x750W @ 4+ 1x1400W @ 2
2x parallel 2x300W @ 22x1400W @ 2
bridged parallel 1x600W @ 41x2400W @ 4

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ITEC IDA 4 / IDA 8
4x single
(BTL)
1x bridged
2x bridged
2x parallel
bridged parallel
Mode switch
Mode switch
Mode switch
Mode switch
Mode switch
In addition, a
jumper inside the
device is required
for this mode
In addition, a
jumper inside the
device is required
for this mode
Input
Input
Input
Input
Input
Output
Output
Output
Output
Output
channel 1
channel 1
channel 1
channel 1
channel 1
channel 2
channel 2
channel 2
channel 2
channel 3
channel 3
channel 4

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The mode switch can also be used to switch a signal to several speaker lines.
ITEC IDA 4 / IDA 8
Mode switch
Mode switch
Mode switch
Mode switch
Input
Input
Input
Input
Output
channel 1
channel 1+2+3
channel 1+2+3+4
channel 1+2 channel 3+4
channel 3 channel 4
channel 4