0 Members and 1 Guest are viewing this topic. Read 267710 times.
Or if you think you can do as good a job with a needle-nose pliers you are mistaken so don't even try it!
I will have to disagree with that statement...while the specific tool will make the process foolproof (or just about), judicious use of a regular snub nose plier can accomplish the same...of course the puller will need to have the right touch, I just changed out 3 OpAmps in my Marchand crossover...no bend pins, no damage to the pulled ICs....just beautiful sweet sounds...
I just used the back of a hammer head to pry them op-amps out. Works pretty well for nails too.
For both extraction and insertion of opamps, I personally prefer chopsticks.
Please, if you haven't performed any work on electronic components this is not the piece to try and dabble into the foray of modifications.Please contact either Wayne at Bolder Cable as I know he is borderline genius with circuits or even Paul Kaplan from Kaplan Cables although I think Paul isn't thinking about doing the extensive mods that Wayne might have in mind.It is worth the small expense to have it done correctly IMHO.
AS BNC is a vastly superior connector standard, shouldn't you mod your source instead?
BNC connectors are new to me, used them once on a computer monitor, but never for audio. Perhaps I need to rethink this..... But I am still skeptical of sound improvements for digital signals either the bits make it in tact, or they don't. There can be no change of the bits or the sound, just drop outs (I have a cheapie optical cable that introduces drop outs, never had a problem with a coax)
Hey! BNC is a much preferred connection over the RCA for digital audio. I'm actually surprised that BNC is not used more. I have the same problem as you with my new DAC of which except BNC and Toslink only. So, I moded my source the Sony SACD/CD changer from the RCA to BNC. Works fine so far when I listen to it for the first time last time... not sure if it was my imagination or what but I feel that there is more detail and etc. Talking about digi-cable. I know it sound crazy but they all do sound different too. You'll be surprised of what a good sounding digi-cable can sound in your system. Take care,Buddy
Talk about money, I just thought of this. I am glad I got this EE DAC. I was supposed to get an Audio Note, just a kit even. That would likely have cost me $2K. Glad that the dealer didn't come through for me, so I saved a big bundle $$$ . I should have thanked him for not doing me the service. So after researching, and some people's + comments on the Sabre chip, I took a chance on the EE DAC. It paid off huge! . The DAC is now spinning out Bach's violin concertos as I type, with the Mullard CV4003 in the belly. Wonderful! Wonderful! What's that, a Jonny Mathis hit!
Hi Shek,I just got back from Paul K (Occam) and we changed 4x OPAMPS in the DAC. I think I have the sound that you are looking for. You may want to talk to Paul about doing the upgrade for your EE DAC. I love what the OPAMPs upgrade did for the imaging. It has even better image focus and there seem to have more "air". That bass! The SS circuit is also competing with the tube sound. Thanks to Paul and Martin. --Levi
Hi Levi (or Occam), Can you comment on the different op-amps that you tried, and how each affected the sound?
Hi Shek,I just got back from Paul K (Occam) and we changed 4x OPAMPS in the DAC.
Which opamps were changed to what? (single or dual opamps). Were they in I/V stage and/or output stage?
Both pairs of opamps were changed out, the pair of singles NE5534 used for I/V (current to voltage conversion) as well as the dual opamps, NE5532 used in the solid state output stage.
