I have 5.1 8Ω speakers for TV, that I want to connect to my PC. I know, that I cannot connect those directly to PC, because sound card has much smaller power output. I am looking for cheap amp to connect speakers to PC. It needs to be cheaper than 80 USD or it would be better for me to buy speakers for PC. I could make such amp at home, but I need instructions.
Perhaps elaborate exactly what u have on hand i.e brand/make of speakers and if u have on hand a passive/active subwoofer? With such a small budget in your shoes i would start fishing on sites like craigslist and you'd likely land an older but still good sounding coax/optical receiver (dun think $80 gets ya a HDMI receiver but there is a chance)