[mgalusha]

I have a pair of built and tested gainclone boards and power supplies from chipamp.com. Included are two heat sinks 4.5"x3"x1.5". Asking $100 plus shipping and paypal fee.

I ran these for about a week and they never became overly warm and sound quite good.

PM if interested.

Thanks,

Mike

[JLM]

Mike,

What's the specifications for these amps?

Got pictures?

BTW I use CIA monoblock chip amps to great effect.  (Chip amps are supposed to highly synergize with single driver speakers.)

[mgalusha]

Sorry for the delay, didn't see this.

The specs are basically those of the LM3886 chip. From the National Semiconductor site:

•   68W cont. avg. output power into 4 at VCC = ±28V
•   38W cont. avg. output power into 8 at VCC = ±28V
•   50W cont. avg. output power into 8 at VCC = ±35V
•   135W instantaneous peak output power capability
•   Signal-to-Noise Ratio >= 92dB
•   An input mute function
•   Output protection from a short to ground or to the supplies via internal current limiting circuitry
•   Output over-voltage protection against transients from inductive loads
•   Supply under-voltage protection, not allowing internal biasing to occur when |VEE| + |VCC| <= 12V, thus eliminating turn-on and turn-off transients
•   11-lead TO-220 package
•   Wide supply range 20V - 94V

These are of the non-inverting variety.

The look exactly like the picture below from chipamp.com except that there are two power supply modules. I'll snap a photo tonight of the modules with heat sinks and post it. I built the amp on a piece of wood just so I could test everything out.