Picky, Picky, Picky😉
I finally get the chance to argue with you,🙁 Other than separate shields inside the PC (only a common ground there) this is from bunches of web browsing done for a digital audio workstation I've been using for years. It's recommended by giants like Steingerg and Digidesign. I have compared USB, optical and BNC many times in both stereo and DAW settings. I hear a warmer - fuller sound this way. This is getting off topic, but JRiver player allows bypassing almost all of the motherboard firmware and drivers (normal RCA output) and uses a cleaner signal directly from the on-board audio chip. It will spit out 192K cleanly with no hiccups.
I finally get the chance to argue with you,🙁 Other than separate shields inside the PC (only a common ground there) this is from bunches of web browsing done for a digital audio workstation I've been using for years. It's recommended by giants like Steingerg and Digidesign. I have compared USB, optical and BNC many times in both stereo and DAW settings. I hear a warmer - fuller sound this way. This is getting off topic, but JRiver player allows bypassing almost all of the motherboard firmware and drivers (normal RCA output) and uses a cleaner signal directly from the on-board audio chip. It will spit out 192K cleanly with no hiccups.
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No matter what company tells what: output signals and input signals should be separated, if they both carry signal that is.
Don't worry about being off-topic, it is our thread isn't it ?
Don't worry about being off-topic, it is our thread isn't it ?
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No, I agree separate shielding inside the chassis could be an improvement. I was just lobbying for a PC as a valid source.
Bob, yould check if there is a voltage difference between pc gnd and dac gnd. I've seen some computers with crazy differences.
O.K. Try this 😀 I know you love food - Special Polish Market meat loaf mixture, Grama famous scalloped potatoes and an apple pie in the oven
. Will surely do me in for the evening. See y'all in the morning !!! 
Attachments
JP - the sound of V3 is truly addictive once dialed in. Changing C17 to ceramic made everything snap into place and I've been listening to it more or less non-stop since making that change. It's got great tonality and even the bass seems to have improved with better texture and definition. Surprisingly good for such an inexpensive DAC. This is some of the better digital sound I've had in my system.
Having a 2nd DAC really helps sorting out which changes are real improvements over just different. Perhaps we should share our locations so that people who are close to one another can bootstrap one another up the learning curve. For anyone in the SF Bay area, I'm glad to let you compare your build to what I've done. I'll be away for the holidays for the next week or so but back after that.
Happy holidays everyone.
---Gary
Life outside DIY is just as important 🙂
Have a safe holiday, Gary!!
PS, I just dug out some X7R caps from the V2.6 build. After dinner, I will replace the tatanlum of the equivalence of C17 in the V2.6.
Have a safe holiday, Gary!!
PS, I just dug out some X7R caps from the V2.6 build. After dinner, I will replace the tatanlum of the equivalence of C17 in the V2.6.
Parts arrived so the journey continues. I believe we are using Neville's Mouser BOM as standard - but I discovered C4 is not listed. Correct me if I'm wrong, but I can't see it. I'm double checking everything else listed before I start building. C2, C3, C18, R8 and U1 were backordered. 😡
Subbu DAC BOM.
Subbu DAC BOM.
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C4 is a 0.1uF which is the same as for C1, C9, C12. Don't panic, Neville's list has 4 x 0.1uF. It is just the label missing "C4".
I'll correct it later on today. nice catch.
Its been playing for 2 solid days and last night I spent 4 hours listening. If anybody does not believe in burning in devices....they are deaf. Subbus dac is almost a different dac now. That laid back sound is gone and competes easily with Bitfrost dac. In fact the sound stage is even better than Bitfrost.
Its been playing for 2 solid days and last night I spent 4 hours listening. If anybody does not believe in burning in devices....they are deaf. Subbus dac is almost a different dac now. That laid back sound is gone and competes easily with Bitfrost dac. In fact the sound stage is even better than Bitfrost.
Merrcy Christmas guys
My PSU shows stable 4.97 V
I did not solder L3-4-5-6, and with no load pads show:
L3 stood at 2.92V
L4 stood at 3.55V
L5 Stood at 2.77V
L6 Stood at 2.67V
I am no way going to try voltages on L1-2, previous bad experience- so won't know until I build it if it works.
Waiting for your comments on voltages 🙂
My PSU shows stable 4.97 V
I did not solder L3-4-5-6, and with no load pads show:
L3 stood at 2.92V
L4 stood at 3.55V
L5 Stood at 2.77V
L6 Stood at 2.67V
I am no way going to try voltages on L1-2, previous bad experience- so won't know until I build it if it works.
Waiting for your comments on voltages 🙂
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No, just put red lead of the DMM on the contact that goes from reg to the coil (= output of reg) and connect the black lead of the DMM to GND.
The way you measured now is between the output of the reg and the following electronics. I.e. in series !
The way you measured now is between the output of the reg and the following electronics. I.e. in series !