This page needs an overhaul, m'kay? WAVs and RealAudio are no longer used on this site. It is all MP3 now. The info below needs to be updated for MP3. if all else fails, RTFM !!!
These days it is not too hard to find a cheap box with plenty of pizazz and spark. You must have a sound card and a set of speakers, headphones, or some other audio output device. Your CPU must be fast enough to decode MP3 on-the-fly and still keep up with basic system chores like disk/net IO, etc. a P-133 or better should be plenty. Got a G3?? Don't even worry about it!
MacIntosh users:Get MacAmp.
Compression using MPEG Layer 3 format necessary results in some slight signal degradation, but it is minimal and can be tolerated. Some Dead tapes sound better cranked up and heard in another room, anyhow.