This will be My very first power amplifier, ever. Ive built several headphone amps and run the smt lab at my work so soldering is not a problem.
However after i bought the thing i now have access to the build procedure and there are options. I dont know how to set the gain since it doesnt make sense. How a gain of 1 creates a 20v signal from a 1v source I cant comprehend.
Anyway heres my specs and any help and build advise would be welcome:
PS= dell 160watt 19.5 notebook switching supply
speakers= 4 ohm pioneer rev's in free air baffle
source= 2vrms usb dac (gona have to tone is down to get to the 1.41vrms limit)
power switch= Do i need one with this setup?
volume pot= 10k alps, It does have a switch, should i wire that to the mute circuit?
Soft start= Do i need this and how to i do it?
heatsink= would an alum case the size of 2 packs of cigarettes be good enough?
gain= ??? Im using a 1vrms-2vrms dac or a mp3 headphone out.