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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: RE: Revox B226 dirty treble posted by knewton on April 19, 2016 at 06:05:21:
I do have the schematics. It's a PDF file, not sure how to post it here?
I doubt the B226 can be described as "badly implemented digital"; it sure dates (1987) but was one of the best at the time...
That said, the SAA7220 chip that provides clock and oversampling for the TDA1541 is said to be very noisy...
I just did some experiment wich seemed to help clean up the treble (but it might be my imagination): seeing as the output coupling cap is a polar electrolytic (silmic II), I added a second, back-to-back capacitor in serie, opposite polarity (-++-) to simulate a bipolar. It seems that high frequencies are now more fluid and cleaner. But it might just be in my head, or placebo effect.
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Follow Ups
- RE: Revox B226 dirty treble - KanedaK 07:10:18 04/19/16 (3)
- RE: Revox B226 dirty treble - Awe-d-o-file 12:14:44 04/20/16 (0)
- RE: Revox B226 dirty treble - Duster 10:27:03 04/20/16 (0)
- RE: Revox B226 dirty treble - knewton 09:30:53 04/19/16 (0)
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