DAC AD1862: Almost THT, I2S input, NOS, R-2R


Another 811 build complete!

For anyone nervous about smd soldering I highly recommend the solder paste and hot plate route over hand soldering.

Ive found that the 1862 and 1541 sound better with different opamps/iv’s to me, and the The 627 & 1541 combo has been the reigning champ, but this might replace it. Now I’m curious about sticking superregs more places lol.

Thanks Vunce and grunf !
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You could go Chinese for the AD811 and ask yourself "Do you feel lucky?" The ones I purchased seem okay, drawing just under 20mA quiescent. A rare thing for most operational amplifiers and behaves similar to the AD844 in my application. Has anyone compared the two in the same application?
Here's a mouser bom for Vunce's 811 that can be uploaded using the BOM tool.

It's built from Vunce's original bom in the numbers file from post #7,343, and so it works with 1862.

Of note:
There are two options for psu input capacitors in the bom (nichicon (C419, C420, C423, C42...) and panasonic (C421, C422, C425, C42...))
It includes no heat sinking for the psu (it needs a lot)
It seems the 100uf UKZ's are all gone :( . If someone has a suggestion for what to replace them with I can update the bom (and am also curious).


  • mr v 811.zip
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I prefer Burson V6 (Classic) from Sparkos, tried with PCM63 and PCM1702. For AD1865, SS3601 is better for me because it compensates for the slightly darker sound of the AD1865. C31 and C36 must be inserted, 33-47pF. R10/11 can be replaced with jumpers. I would still put something minimal, say 10 ohms.
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Actually I am not sure which version this is. I bought it several years ago together with a PianoDac.

If the LEDs are a indicator for the version, it should be the 22/24MHz-version, because the highest value is 192k, but I am not sure about it.

Nevertheless, it works like a charm!
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