i purchased this amp lightly used for $60 from a friend. So far, i have been totally impressed with the amplifier. I have it bridged mono for my Audiobahn sub running 300watts rms. It sounds great and seems to be of decent quality.

It's not the best amp made, but for the budget minded enthusiat, this will more than satisfy your needs.

RMS Output:
125x2 @4ohms
150x2 @2ohms
300x1mono @4ohms

11.25 x 11.25 x 2.25

Variable Low Pass 40Hz-120Hz
Variable Hi Pass 150Hz-1.5Khz
18dB Bass Boost @ 40Hz
Frequency Response: 10Hz to 30Khz
S/N Ratio:97 db
THD: 0.02%
2ohm Stable Stereo
4 Gauge Power/Ground Connection
Gold plated RCA Connectors
Line output