I'm listening to my new ODAC that I installed this afternoon in one of my O2s.
The install is not plug and play.
The ODAC board fits in the place of the batteries as designed.
The wire routing between the ODAC and O2 board takes a bit of
head scratching. The O2 amp board wasn't designed for easy
plug and play connection with the new ODAC. You have to pick up
Left-Right-Ground from underneath the O2 board under the input jack
and route the wires to the top side of the amp board. I ended up routing
3 runs of 24g navships wire squeezed through the pcb lead holes for P1.
I cut the input jack traces as described in Voldemort's blog and the
switching between input jack and onboard ODAC works as expected.
My WinXP desktop recognized the ODAC as "odac" and configuration
went quickly. Nice that the USB interface was programed to identify
itself to Windoze as "odac' rather than "USB audio device" like every other
DIY DAC project I've done. Downside is that ASIO4ALL won't play
through the ODAC. It may take some software fiddling to get it to work.
I have no problem with ASIO4ALL playing with a AMB y1, y2, grubDAC
or Alien DAC, so the ODAC is a bit different.
I've been listening to the ODAC for a couple hours now. So far I'm using
HD800's and playing mp3s CD rips, mostly 256kb and 320kb so no
higher sample rates or bitdepth. So far nothing jumps out audibly, either
pro or con with the sound. I'm looking forward to comparing it with my
other DIY dacs; I have a TP buffalo, buffalo II, amb Y1, Y2, and a GrubDac
to compare it to. Eventually I plan to install the ODAC line out jack and
then will be able to run it through the paces using other "higher end" amps.
I'm not the most golden eared listener though and have
a difficult time telling any difference between the DAC's I have.
Edited by bada bing - 5/29/12 at 1:51pm