The stereo audio is outside of which type player you go searching for. The basic components are an amplifier and mixer (or powered mixer), PA speakers, and microphones. To save space and ease of setup a powered mixer is the best selection for a flat karaoke computer. These come in a wide range of sizes, power ratings, and prices. A powered mixer with at the very 4 channels and a total power output rating more than 400 watts will work great in your home product. Some popular brand names are Behri...