I have 2 Soundcraftsmen PM-840 power amplifiers for sale in excellent condition:
Stereo Output: 205 watts/rms @ 8 ohms; 410 watts/rms @ 4 ohms
Freq Resp: 20-20kHz, +/-2dB
THD: <.05% @ maximum rated output
SN Ratio: 108dB
Slew Rate: 130 uv
$180 ea, or both for $300.
These have a built in silent cooling fan, are rock solid, and great for Home Theater or DJ'ing. They have a "power" led and 2 "clipping" leds (which I've never seen light).
If you "bridge" the 2 amps (bridger included) you'll get a whopping 600 watts/rms @ 8ohms; 1200 watts/rms @ 4ohms.
These amps were made in Santa Ana, California, when Soundcraftsmen was in business. I have the original manuals and QC checklist as well as actual bench test certificates on the specifications. You don't see that anymore...