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  1. zenon

    TREAD outputs 1/2 expected voltage

    I have a TREAD that I constructed from tangent's kit.  I'm using it with a with a 20VAC AC-AC wall wart.  I wired it to the wallwart and began testing.  I'm finding that the voltage directly off the recifier (test points 1 & 2) is approximately 11VDC.  I removed the TREAD and connected to the...
  2. zenon

    192kHz S/PDIF output - suggestions?

    My PPAv2 is almost complete, now it's time to rebuild my digital signal path!  Please offer me your advice and suggestions.   I'm looking at the Zhaolu D3 DAC - Comments/Suggestions?   My search for a digital source for the D3 has presently yielded two contenders, please offer...
  3. zenon

    PPA Bass Boost Circuit - HD800 Component Value Sanity Check

    I am currently planning/ordering parts for a PPA v2 build with bass boost and am requesting advice on component values. I played around with tangent's online component calculator and found that I could tailor the boost curve for both an HD800 and my pair of sealed "airplane" cans by only...
  4. zenon

    M-Audio MobilePre - signal path upgrades

    I have cracked open my MobilePre and want to plan out some upgrades. My setup is ubuntu-studio Linux running jack realtime sound server, M-Audio MobilePre, and cmoy (OPA2227) headphone amplifier. Headphone Amp Attached is what I believe to be the headphone preamp. JRC : 3414A = Believed...
  5. zenon

    M-Audio MobilePre - signal path upgrades

    I have cracked open my MobilePre and want to plan out some upgrades. My setup is ubuntu-studio Linux running jack realtime sound server, M-Audio MobilePre, and cmoy (OPA2227) headphone amplifier. Headphone Amp Attached is what I believe to be the headphone preamp. JRC : 3414A = Believed...
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