The AudioSource AMP100 is an inexpensive stereo 100 Watt power amplifier with a 50 Watt per channel output at 8 Ohms. 

The unit features:

The AMP100 is a viable powering solution for home audio systems, and it may also be used as a zone or distribution amplifier for bars, restaurants and offices.

Stereo Power power amplifier with 100 Watt output at 8 Ohms, 160 Watts at 8 Ohms Bridged for home or installations

Rugged black aluminum faceplate

Built-in A, B and A+B speaker selector switcher, dual speaker outputs for zone or distribution amplifier functionality

Dual audio inputs and dedicated audio output on RCA connectors

Stereo and Bridged Mono operation with selector switch

Auto On signal sensing switch powers unit upon input signal detection

Built-in, unswitched rear panel 400 Watt AC outlet

Lightweight design

AudioSource AMP100 Specs

Power Rating    
60 Watts @ 8 Ohms
75 Watts @ 4 Ohms
160 Watts @ 8 Ohms Bridged

Damping Factor    Not Specified by Manufacturer

Input Sensitivity    
1.4V RMS (8 Ohms)
1.2V RMS (4 Ohms)

Input Impedance    Not Specified by Manufacturer
Gain Not Specified by Manufacturer

Frequency Response    
20 Hz - 20 kHz (+1 db, -0.5 db, 50 Watts @ 8 Ohms)*
20 Hz - 20 kHz (+1 db, -0.5 db, 60 Watts @ 4 Ohms)*
*<1% THD+N

Signal-to-Noise Ratio    Not Specified by Manufacturer

Total Harmonic Distortion (THD)     <0.02%

Input Connections    
2 x Pair L, R RCA Phono Stereo Inputs

Output Connectors    
2 x L, R RCA Phono Stereo Output
4 x 5-way Binding Post Speaker Outputs

Controls Front Panel    
2 x Rotary Volume Controls
2 x Speaker Selector Switches

Controls (Rear)    
1 x Stereo/Bridged Switch
1 x Signal Sensing Auto On Switch
1 x Power Switch

Indicators    
1 x Power On LED

Cooling    Convection

Power Consumption 500 Watts

Dimensions    2.9 x 16.5 x 9.25" (73.66 x 419 x 235mm)

Weight    9.6 lb (4.35 kg)