I did solder each wire. It sounds OK on FM. My Philips DVD 936 is playing stupid and won't read a disc right now, so I couldn't really give it a listen. It clipped at 35V peak with 4Ohm speakers (both sides driving) so it's pushing 150w RMS @ 4 ohm, not bad.
The strange thing is there are 3 pots per channel. 1 for offset and 2 that effect bias. I zeroed the offset and set it at 100ma bias. one channel was at 125ma and the other at 80ma, and 100 seemed like a good number. Do you know how the 2 pots work together. removing the board to backengineer the scem would be a beoch (and unnessisary) If you remeber something about it.
Not a bad buy for $30.