Re: FRENCH ART - STEVEN - Steven S.

Digital Drive

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Re: FRENCH ART - STEVEN

Posted by Steven S. on October 15, 2001 at 13:33:37

In Reply to: Re: FRENCH ART - STEVEN posted by Claude G on October 15, 2001 at 08:43:33:

Hi Claude,

Always a pleasure reading your post.

For the background noise, if you stop CD playing, and turn your volume control to max, you will hear it. If you unplug the DAC daughter card, it becomes much quieter. That means the noise mainly comes from the front stage but not the op-amp output stage. But you can only hear the noise when you are 1~2ft from the speakers. I maybe a little picky.

I don't konw about the resistors. Looks like they are all low precision ones(5 or 10%?). If they are of carbon type, the noise floor will be much higher than the metal film type. So that's why I want to replace them. As for board rework, I'm always having fun of doing it and can do a very decent soldering job(even fine-pitch PQFP package).

Something came to my mind when I saw somebody mentioned using an output transformer to bypass the op-amp... Since the DAC has a differencial audio output and my pre has the balanced input. I might be able to directly hook up the DAC to the pre, so totally bypass the op-amp. I need to study this some more. Do you have any experience on this?

Thanks,
Steven

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Follow Ups Full Thread

Topic - FRENCH ART - more on tweaks - Claude G 18:24:10 10/10/01 (17)

Re: FRENCH ART - more on tweaks - Claude G 16:57:30 10/12/01 (8)

Re: FRENCH ART - more on tweaks - Michaelz 11:40:26 10/15/01 (0)

Re: FRENCH ART - more on tweaks - Steven S. 09:05:32 10/13/01 (5)

Re: FRENCH ART - more on tweaks, STEVE and STEVEN - Claude G 13:11:48 10/14/01 (4)

Re: FRENCH ART - more on tweaks, STEVE and STEVEN - Steven S. 16:14:56 10/14/01 (2)

Re: FRENCH ART - STEVEN - Claude G 08:43:33 10/15/01 (1)

Re: FRENCH ART - STEVEN - Steven S. 10/15/0113:33:37 10/15/01 (0)

Re: FRENCH ART - more on tweaks, STEVE and STEVEN - steve jones 14:40:55 10/14/01 (0)

Re: FRENCH ART - more on tweaks - steve jones 18:11:24 10/12/01 (0)

Re: FRENCH ART - more on tweaks - Steven S. 12:40:59 10/12/01 (0)

Re: FRENCH ART - more on tweaks - Michaelz 10:15:35 10/12/01 (0)

I wonder..... - steve jones 17:05:00 10/11/01 (2)

Re: I wonder..... - Claude G 06:27:07 10/12/01 (1)

Re: I wonder..... - steve jones 12:01:11 10/12/01 (0)

Re: FRENCH ART - more on tweaks - Guido Tent 07:19:28 10/11/01 (1)

Re: FRENCH ART - more on tweaks - Claude G 13:17:46 10/11/01 (0)

GREAT posts on the DI/O Claude (nt) - J Harris 07:10:03 10/11/01 (0)

Follow Ups

Re: FRENCH ART - STEVEN - Steven S. 10/15/0113:33:37 10/15/01 (0)

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