From earlier digital audio blog post:
The WM-10 is basically a souped-up Airport Express but they call it "Airstream". It has basically the same specs and functions except the aluminum case (black or silver) and better power supply (R-core transformers rather than switching PSU). Although it uses the Cirrus Logic 4344 24-bit/192hKz DAC (same with the AE), the streaming is limited to 16-bit 44.1/48kHz files due to Airplay limitations. Another limitations is that no matter what file you choose to play, the WM-10 will convert to Apple Lossless (ALAC) on the fly (same as the AE). Retails for $1,595.
