Links are fixed now guys. Sorry for the wait :) Enjoy!
Ugh... the opamp and tube sections are screwed up and hard to read. I'll get to them... eventually...
Edited by _Spanky_ - 12/26/11 at 2:09pm
I have a question about the Opamp(s) listed on the first page. What are the actual part numbers for:
For example, there are several OPA627 listed on Digi-Key and I'm not sure which part number to buy.
Also, has anybody tried the duel OPA627? What are the advantages over the single chip version?
mtwill54, the single OPA627 won't work in the D1. Think of it in terms of channels. The D1 is a stereo device so you need a dual opamp. Look up the BrownDog adapter. It allows 2 OPA627's to be used in a single socket. There may be clearance issues though.
I wouldn't use the AD823 because of the high DC Offset. It may ruin your headphones over time.
For the HDAM, see here:
You'll have to measure and see if things will fit since the HDAM is pretty big. I know for the cost that I would rather have the HDAM instead of the OPA627.
Yea the D1 I don't think is properly grounded always I remember the story of feeling of a few volts of electricity passing through my body when I touched the RCA inputs/out I don't remember how but the problem fixed itself but was still a bit funny.
I thought I was the only one experiencing this! Now I don't feel as insane as before LOL. It's especially prevalent from the tube output - I can send a nasty pop/noise to my speakers if I simply touch the rca cable to the output.
Maybe you can hold on to the RCA output and you will start singing whatever that is being fed to you
Ask Ryan (seller) to ensure that the unit has got no noise before shipping it to you. Don't think that is a very prevalent problem, might be affecting only a small batch.