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009145  •   07/2018

Domos2

40426

–L   L   R +R

230 V~ 

 3 4 5 6 7 8 9

 2  0  1  – +L – +R

40291

 L  R

ON COM AUTO

L

N

25 W; 4 

25 W; 4 

1.5 W; 32 

Ω

1.5 W; 32 

Ω

1.5 W; 32 

Ω

1.5 W; 32 

Ω

1.5 W; 32 

Ω

8

6

5

4

3

7

1

N L

–L   L   R +R

2

 L  R

ON COM AUTO

EGi

 guarantees its electronic and electroacoustic products against any manufacturing defect that affects its operation for 

36 months from the production 

date

 (indicated in every manufacture), taking the commitment of repairing or replacing the faulty modules which failure, always to the discretion of 

EGi

, is 

caused by a manufacturing defect, without any charge for spare parts.
This guarantee does not include charges for the shipping and handling of the modules, nor the labour charges for the replacement in the installation of the aforementioned 
electronic and electroacoustic modules. The guarantee will not cover in any case the damages or breakings of the trimming pieces (lattices, trims, masks, frames...). 
This guarantee refers 

only

 to the concept of 

replacement in factory of the modules

 produced by 

EGi

, excluding any other cover or responsibility on the rest 

of the materials or the whole of the installation that is put at the user disposal, but that is not supplied nor executed by 

EGi

.

Therefore this guarantee does not cover: 

a.

  The fitting up and the interconnection between the modules.

b.

  The results from the abuse or misuse of the product, including but not limited to:

b.1.  Not using the product for usual purposes, or not following the instructions from 

EGi

  for the correct use and maintenance of the product.

b.2.  The installation or use of the products in a way that is not concordant with the technical or security rules now in force.

c.

  The malfunctions caused by the wrong installation of the modules, or by an installation with inappropiate cables.

d.

  The malfunctions caused by the intervention of a person non-authorised by 

EGi

.

e.

  The consequences of mixing with equipment from other sources, and also adaptations, modifications, adjustments and/or adjustment attempts, irrespectively 

of those that have been performed in a technically correct way, provided that there is not an express authorisation by 

EGi

.

f.

  The consequences of accidents, natural catastrophes or any cause beyond 

EGi

 control, including but not limited to lightning, water and public disturbances.

In all these cases that are excluded from the guarantee, and every time that the modules are not considered as faulty by EGi, the sender should take responsibility 
of the full amount of the repair, and in the event of a visit from our technicians, the requesting person will bear the expenses originated without a cause justified 
in the guarantee.
EGi reserves the right to modify its products at any time. Although it is about presenting updated documentation, the documents and the image provided may not 
match the product purchased.

ATTENTION:

 If you notice any problem in your 

EGi

  installation, our Customer Support Service will attend you from 9 h. to 15 h (Central European Time).

Guarantee

Technical specifications

40426  

Digital amplifier 2x25 W or 1x50 W with PIN input and Auto Line IN

en

  instruction manual

Av. Almozara, 79 • 50003 ZARAGOZA - Spain  •  

T.

 +34 976 40 53 56  •  

F.

 +34 976 40 53 54  •  

e-mail:

 [email protected]  •  www.egiaudio.com

Function

115 ~ 230 V~;  50/60 Hz
66 W
25 + 25 W (stereo) or 50 W (mono)

Ω

 (stereo) or 2 

Ω

 (mono)

LINE IN mode: 33 K

Ω

PIN IN mode: 14 K

Ω

LINE IN mode: 500 - 750 mV

PIN IN mode: 1 - 3 V

Power supply

Max. power consumption

Sound power output

Output impedance

Intput impedance

Input sensitivity

20 Hz ÷ 20 KHz
0.1%
DIN rail or recessed in EGi box ref. 

V11F + trim ref. 40810
0.36
105 x 85.5 x 65

Frequency response (@ –3 dB)

Distortion (THD)

Housing

Weight (Kg)

Dimensions (mm)

 

1

  External audio input (PIN or LINE IN).

 2

  Optional external switching-on (fixed ON or automatic AUTO).

 

3

  Standby led (STBY).

 4

  Power on led (ON).

 5

  Detection of connection in mono bridge mode. 

 6

  Short-circuit, overload or temperature protection LED.

 7

  Stereo speaker output (–L +L; –R +R) and mono bridge ( /  ). 

 8

  Mains power input.

OPERATING

IMPORTANT:

 Before making any connections, make sure that the power unit is not connected to the mains.

Power stage 40426 needs to be correctly connected before receiving power, since it is automatically configured as its connections have been made when receiving 
electrical network. In case of making any change it is necessary to deactivate the electrical network, make the change and reconnect to the electrical network.

CONNECTION

To start connecting the 40426 power stage, follow the instructions below.

AUDIO INPUT

You can connect 2 types of input lines 

(1)

 detectable manually or automatically.

• 

EGi PIN

 audio from EGi modules, with 3 V~ audio s activation signals from +4.5 to 7 Vdc, to activate the start of the stage automatically while 

incorporating an audio signal of sufficient value to carry Parallel or twisted cable lines.

• 

LINE

 audio from sound sources or preamplified modules, with audio signals from 250 mV~ to 750 mV~ without any activation.

POWER ON CONTROL

To activate the manual stage or automatically with pre-amplified signals, you can do it in 2 ways using the following type of connection 

(2)

.

• 

ON/COM

 - By means of these 2 normally open (NO) contacts, we can activate the stage manually by closing this contact through a closed bridge, relays or normally 

open switches (NO), to close them and activate the stage in POWER ON. While the contact is closed the stage will be on (ON).

• 

AUTO/COM

 - By means of these 2 normally open contacts (NO), we can activate the stage automatically by closing this contact through a bridge. In this way, the 

stage is in a stand-by state but activating the audio detection system to 

turn on the stage when an audio signal is detected

. This detection works and activates 

the power stage at the moment that there is a minimum audio signal.

  During the time that there is music, the stage will work indefinitely until there are no hollows of silence of more than 30 seconds. After that time the stage will 

go into stand-by mode until it detects another audio signal again.

 

NOTE:

 There are passages in music of similar intervals, but they are very punctual and not important since the stage will be activated again when there is 

audio. It is recommended to take special care in the wiring to be used between the musical source and the stage; since these can induce noises that activate 
the stage without audio. To do this, use twisted cable for EGi PIN lines or shielded coaxial lines for LINE IN inputs.

Wiring diagram

2 conductors

CONNECTION IN BRIDGE MONO MODE

From 2 speakers in parallel at 4 

, up to 16 speakers in parallel at 32 

 (total minimum 2 

).

CONNECTION EXAMPLE
WITH EGi SOUND UNITS 

CONNECTION EXAMPLE WITH AUDIO SOURCES

CONNECTION IN STEREO MODE

From 1 speaker at 4 

Ω

, up to 8 speakers in parallel at 32 

Ω

 

(total minimum 4 

).

Audio OUT, mixers, PC,

tablet, mobile, CD, DVD...

Close contact relay

or switch on fixed ON/COM (NO).

Close contact for automatic activation  

audio detection AUTO/COM.

3 conductors

SPEAKERS CONNECTION

To detect the connection mode made, first connect the speakers to the SPEAKER CONNECTION output 

(7)

 according to the desired mode, and then feed the stage 

with electric current at the power input.
Before making any changes to the speaker connection mode, remember to first remove the mains supply, second modify the speaker connection and finally 
reconnect the mains power (DO NOT MAKE CONNECTION CHANGES IN LOUDSPEAKERS WHILE POWER IS EXISTING OF NETWORK).
• 

CONNECTION IN STEREO MODE (– L + / – R +) 

- Connecting 2 speaker lines we obtain a stereo connection. One on the left channel (Left) and one on the right 

channel (Right). In this way when receiving the electric current, the stage will detect that the operation is stereo mode of 2x25 W and the minimum impedance per 
line should not be less than 4 

Ω

.

• 

CONNECTION IN MONO BRIDGE MODE (

- Connecting 1 line of speakers in bridge mode, when the electric current is received, the power stage goes 

into mono mode adding the L and R inputs, obtaining a single channel in bridge mode of maximum 1x50 W and minimum impedance not less than 2 

Ω

 .

  This connection has the peculiarity of going only in the 2 central sockets of the terminal strip "speaker connections", and the 2 lateral connections of the same 

should not be used. 

 

NOTE:

 To guarantee a correct reproduction of audio and of low frequencies, it is OBLIGATORY to respect the polarities of the speakers and the stage at all 

times; both parallel connections and serial connections.

ELECTRIC POWER MAINS

To connect the electrical network, make sure that there is no current in the cables to be connected. Next, unscrew the protection cap 

(8)

, release the connection 

strip and connect line by line NEUTRAL, PHASE and EARTH (avoid leaving loose filaments). Reconnect the plug-in terminal block to the power section, guide the 
cable outlet to the bottom and close it with the protective cover.

STATUS LEDS

The purpose of these LEDs is to inform the installer or user of the state in which the power stage is located.
• 

STBY (3) 

- It indicates that there is continuous power supply in the internal power supply and that, if the only LED is on, the stage is in STAND-BY mode.

• 

POWER ON (4) 

- Indicates that the stage is activated and turned on during operation; either by PIN input, either by LINE IN AUTO input or by LINE IN ON input.

• 

MONO BRIDGE 50 W (5) 

- Indicates that only one line of speakers has been connected in BRIDGE mode in the center of the center sockets of the 

"speaker connections" terminal, that the stage has been set to MONO BRIDGE mode.

• 

PROTECTION (6) 

- Indicates that during the operation of the stage a protection of the same has been detected; either due to excess temperature, short circuits 

in loudspeaker lines, impedances lower than those recommended in loudspeaker lines, derivations of these lines to ground or high harmonic peaks.

ABOUT THIS MANUAL
We have taken all efforts to make the contents of this manual reliable and 
updated. However, 

EGi

 does not guarantee the accuracy of the contents 

which are subject to change without previous notice.

TECHNICAL SUPPORT
If, while using the system, you encounter a problem that cannot be solved 
by consulting the manual, please contact the installer. You can also consult 
the website 

www.egiaudio.com

 to find the latest information and other 

resources to solve your problem.

COPYRIGHT INFORMATION
This manual in whole or in part, and any product or software described 
herein, may not be reproduced, transmitted, saved in data recovery 
systems, or translated into any language in any form or by any means, except 
all documents saved by the user to make security copies; without the previous 
written consent of the manufacturer.
All products or corporate names herein may (or not) be registered 
trademarks or copyright of their respective companies and are used for 
identification or explanatory reasons only, and in interest of the owner 
without the intention of infringing any regulation or rule.

SAFETY INSTRUCTIONS
This system has been designed and manufactured in compliance with the 
latest safety standards for household electronic equipment. However, to 
ensure safe use of this product, it is important to follow the instructions given 
in this documentation:

 

No 

EGi

 product should be covered with anything that impedes ventilation.

 

Do not place any sources of naked flame such as lighted candles or 
similar elements on top of the device.

•  Do not expose the device to poured, splashed or sprayed water.

 

Disconnect the Mains supply before carrying out any work on the 
installation.

 

Do not expose the equipment to direct sunlight.

 

Do not use excessive force when handling the product.

 

The user should abstain from carrying out any alterations or repairs on 
the product, reserving these actions for qualified personnel.

 

Only use accessories supplied by 

EGi

.

  EGi

 will not be held liable for any damage arising from misuse of the product 

or usage other than what is was designed for (See 

Guarantee

 section).

An exclamation mark inside a triangle indicates important 
operation and maintenance instructions and the existence of 
components that may affect safety if replaced.

Class I device.

The lightening-shaped arrow warns of the presence of dangerous voltage. 
To minimise the risk of electric shock, do not remove the cover.
The lightening signs near the amplifier output terminals warn 

of the danger of electric shock in normal usage conditions 

(Terminals dangerous to touch). Do not touch these terminals 

while the device is in operation.

The present product can not be treated as normal domestic waste, 

but must be handed over to the corresponding collection point 

for electrical and electronic equipment.

This product is in accordance with the European Directives that apply.

LIABILITY

Due to the wide variety of services and devices the system interacts with, the 

manufacturer cannot be held liable for failure or faulty operation of devices not 

manufactured by 

EGi

 and connected or used by any module in the series.

DECLARATION OF CONFORMITY

Electroacústica General Ibérica, S. A. with registered address in Avda. Almozara, 79 - 

50003 Zaragoza (Spain), declares under its sole responsibility that the equipment 

described in this manual incorporates the functions specifies in each case and 

complies with current regulations: Directive 2004 / 108 EC, regarding electromagnetic 

compatibility and Low Voltage Directive 2006 / 95 / EC, regarding safety in low 

voltage receivers.

Due to a policy of continuous improvement, 

EGi

 reserve the right to modify 

their products at any time. Although every effort is made to present up to 

date documentation, the documents and illustrations provided may not 

coincide with the product purchased.
You can access the latest versions of documentation in: 

www.egiaudio.com
EGi

 will not be held liable for any possible errors in the text or references.

All brands mentioned herein are registered with their owners.

 IMPORTANT

  Please read these 

"Safety instructions"

 carefully before using any 

EGi

 product. 

Information

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