Figured since it was at CAF2016 folks might have some interest in the DIY HiRez DAC description.
Have attached my description of the DAC and parts list.
The AK4490EQ DAC supports all sample rates and bit depths to 24bit/352.8KHz DXD PCM playback. It has DSD capability, but the board used does not allow direct access. I just downsample the DSD DFF files to 24bit/176.4KHz as that is the maximum limit that Foobar2000's plugin allows.
The filters are also selectable, but the board only gives the minimum phase slow rolloff filter that I prefer.
The Analog Devices AD827 8 pin DIP is installed in a nice machine pin socket. Makes it easy to roll you favorite dual opamp.
TomP gave me two LME49720 8 pin DIP's and tried them after CAF, and I like the sound quality better than the AD827. Very easy change. I liked them in the TPA Opus DAC with the Ballsie Lite output board.
Roscoe has suggested removing two power supply caps and mounting them from underneath the board to allow a Burson opamp. I have dual Burson opamps, so may give that a try. Probably will get a second DAC board in case I kill the first. At $28 for the board, good to have a spare.
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