Mini stereo amplifier with an integrated web-based control

The AMP523 is a mini stereo amplifier with an integrated web-based control unit featuring four stereo line inputs and one balanced microphone input with phantom power. It has an output power rating of 2 x 15 Watt. The simple and compact but versatile functionalities make it perfectly suited for small speaker systems requiring compact and economical audio solutions which are comprehensive and easily controllable. Some typical applications are classrooms where the audio system will be used in combination with a smartboard, offices and meeting rooms where the music should switch automatically from background music to speech or playback when the presentation starts, …. and many other similar applications.
The compact size and very high efficiency even make it possible to hide it in a closet, on a false ceiling or mount it under a desk or table. The various stereo line inputs allow simultaneous connections for different sources such as laptops, CD or MP3 players and tablets while having a microphone connected. The switching between the inputs, volume regulation and other function controls can be done in multiple ways: an integrated website makes it possible to control all the functions from any computer with a web browser without requiring additional software while the RS232 connection makes it possible to control the AMP523 with any device supporting serial communication such as a computer or even a home or industrial automation system. Another option is to control the system through smartphones and tablets using the special developed AUDAC Touch™ app.
Using this freely available application for smart devices guarantees total system control and configuration from any device on any location and at any time. To make the installation even more complete, an optional MWX43 or MWX45 wall panel can be installed to control the signal routing and volume level from one or multiple fixed locations. The Class-D amplifier technology, standby mode and included switching power supply makes this device compliant to the highest energy efficiency and environmental requirements. A variety of optionally available mounting brackets for the AUDAC S-Box product range are allowing desk, closet or 19” equipment rack installation.

SYSTEM SPECIFICATIONS

THD+N (@ 1 kHz)
< 0.1%

Crosstalk (@ 1 kHz)
95 dB

Efficiency
87%

Cooling
Passive

Protection
Over heating

 
DC Short circuit

 
Limiter

Control
RS-232

 
TCP/IP

 
RS-485

Socket Connections (AUDAC Touch™)
2 sockets

Outputs
Type
1 x Stereo Loudspeaker

 
Connector
4-pin Euro Terminal Block (Pitch – 5.08 mm)

Power
Supply
24V DC (PSD241 switching Power supply included 100 ~ 240V AC / 47 ~ 63 Hz)

Inputs
Unbalanced Stereo
Type
4 x Stereo Unbalanced Line

 
Balanced Stereo
Connector
18-pin Euro Terminal Block (Pitch – 3.81 mm)

 
 
Impedance
20 kΩ

 
 
Sensitivity (1W/1m)
-10 dBV ~ +4 dBV

 
Balanced Microphone
Type
1 x Balanced Microphone

 
 
Connector
18-pin Euro Terminal Block (Pitch – 3.81 mm)

 
 
Impedance
47 kΩ

 
 
Sensitivity (1W/1m)
-45 dBV ~ -20 dBV

 
Other
Type
1 x RS-485 + Differential audio

 
 
Connector
RJ45

 
 
Type
1 x RS-232

 
 
Connector
SUBD9

 
 
Type
1 x Ethernet

 
 
Connector
RJ45

Power
Consumption
Standby
< 3.0 W (PSD242 included)

RMS Power
@ 4 Ω Stereo
2 x 15 W

 
@ 8 Ω Stereo
2 x 7.5 W

 
Satellite
@ 8 Ω Bridge
30 W

PRODUCT FEATURES

Dimensions
108 x 44 x 165 mm (W x H x D)

Weight
0.81 kg

Accessories
Included
PSD241 – Power supply 24V / 1.67 A (Efficiency Level V)

 
Optional
Wall Controller (MWX45)

 
 
WMI18/22 & WLI18/22 Wall input unit

 
 
MBS1xx Wall mounting brackets

 
 
TR3030 100V Transformer 30 W