Aren't ready-made DACs like $200 each or so? I've built sound card DACs for about $40-50 in parts. Tack on another $50 for a portable computer like a Raspberry Pi + case.
Yeah, I was basing that on the EtherDream, but yeah, that FB2/FB3 can cost quite a bit. The software component is another part of it of course.Depends what you get - The FB3 with Quickshow from Pangolin is around $600.
An EtherDream DAC without any software is $200. Tack on $130 (Currently a sale on, so probably decently more expensive normally) for a copy of LSX to go with it.
Yeah, the RPi(2) works just fine. In fact, the CMedia driver for Linux seems to work a lot better than on Windows. Hemlock_Mike had some problems, and I was able to confirm on mine, that not all channels seemed to work on some of the CMedia sound cards on Windows 7.Interesting, will a Raspberry Pi playback an 8 channel wave file?