
This is the famous $79 (now $99) converter recommended by Jim Williams a few years ago. Same as the Beresford TC-7510, just different labeling. The PCB inside even says TC-7510.
Here's the original discussion: http://messageboard.tapeop.com/viewtopic.php?t=58389
This has been modded with all the commonly recommended mods (new output opamp, upgraded capacitors, etc.) It was my main monitoring DAC for a few years, but my new interface doesn't have a TOSLINK or SPDIF output, so I can't use it anymore.
I'm including a small external box with a passive constant-output-impedance stepped stereo attenuator using 1% metal film resistors, as well as a latching mute switch. RCA outputs on the back of the box to feed your monitors. This little box alone cost about $40 in parts.
You won't find a better sounding 2-channel DAC for this price.
$70 shipped in the US.