5
Introduction
Public address mixing amplifier
The COM104/108 are compact but versatile public address mixing amplifiers, offering solutions
for small to medium size audio systems in commercial installations. Typical applications are
background music systems in retail stores, bars, restaurants and office buildings.
The compact and simple design allows installation in any location and operation through
any possible user.
The amplifiers are designed using Class-D amplifier technology and delivers an output power
up to 80 Watt (40 Watt for COM104) to constant voltage (100V and 70V) or low impedance (4
Ohm) audio systems. A switch mode power supply allows compatibility with a wide variation
of mains voltages for global compatibility.
A stereo line input allows connection for a wide variation of audio sources such as media
players, radio tuners, internet audio players, ... and many more. A balanced mic / line
input allows connection for an announcement microphone with compatibility for condenser
microphones using the integrated phantom power supply (15V). A priority switch overrides
the background music when enabled, and compatibility with voice file players is guaranteed
by the wide gain adjustment possibility (0 dB - +50 dB).
Desktop installation or mounting in an equipment rack using (optionally available) mounting
adapters is possible. The half 19” rackspace enclosure allows single installation in a 10.5”
equipment rack, or side-by-side (two devices) in a 19” equipment rack.
