I have this used JL Audio e2150 amplifier. It needs repair. When hooked up and turned on, only the red security light lights up but no sound. I do not know what is wrong with it, could be something simple or not... I don't know how to work on amps. Retails at around $150 new. Here are spec's...

Class: AB
Channels: 2
Min Frequency Response: 10 Hz
Max Frequency Response: 25 KHz
Bridgeable: YES
Protection Circuitry: Short Circuit, DC Offset
Protection LED: With Protection LED
Power LED: With Power LED
Power supply topology: MOSFET, Regulated
Input Voltage: 12 volts
Variable Gain Control: With Variable Gain Control
Signal to Noise Ratio: 104 db

Features
Bass Boost: With Bass Boost
Fuse Rating: 1x20 AMPS
Wire gauge: 8

Output Power
Preamp Outputs: 1 Pair
Bridged Power: 150 x 1
Power at 2 Ohms: 110 x 2
RMS Power Output: 45 x 2
Minimum Impedance Bridged: 4 Ohms
Minimum Impedance Unbridged: 2 Ohms

Crossover
Built-in Crossover: With Built-in Crossover
High-Pass Crossover Min Frequency: 50 Hz
High-Pass Crossover Max Frequency: 200 Hz
Low-Pass Crossover Min Frequency: 50 Hz
Low-Pass Crossover Max Frequency: 200 Hz
High-Pass Slope (dB/octave): 12 db
Low-Pass Slope (dB/octave): 12 db

Dimensions
Height: 2.36 in
Depth: 9.8 in
Width: 9.25 in

So if you or someone you know works on amps, maybe you can fix it. It's just sitting around collecting dust for me.

How's $35 Shipped