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Some experience with Reclocking

Posted by footsurg (A) on February 6, 2009 at 09:24:48

In Reply to: That's specific. Thanks. posted by Frihed89 on January 29, 2009 at 05:49:27:

I have the 2.1C Sig DAC and am currently using one of those Wadia 170i iPod transports. It sounded okay as it was with uncompressed audio files, but compared to using the 2.1C with my CDT-2/II transport it was EXTREMELY lacking. Using the first track from the Buena Vista Social Club CD, the real CD transport just absolutely trounced the little Wadia transport with the same song uncompressed playing from the iPod. I really suspected that jitter was the reason why there was such a huge difference.

So I decided to reclock the bitstream signal using one of those Monarchy Audio 24/96 DIP devices. The one I am using is NOT the classic version that also upsamples. I did not want to interfere with the AN 1x oversampling scheme. Its just a super accurate and stable clock. It reclocks and thats all.

The difference with the clock added was nothing short of sensational. The bass was more controlled and punchy, the voices more natural, and the imaging improved dramatically. Now granted it still does not beat out the 2.1C with a CDT-2/II attached to it, but the sound is MUCH closer than before.

Naturally I tried the clock between the 2.1C DAC and my CDT-2/II and found that it made no improvement at all. It did not degrade the sound either as far as I could tell, but there was no improvement either. I was using runs of SOGON digital between transport and clock, and clock and DAC.

The take home point is that if you're using a super nice transport like the AN CDT-2/II which I suspect has very very low jitter to start with, reclocking the signal is not going to help. You don't need to reclock.

If you're using a not so great transport that inherently exhibits tons of jitter, reclocking is going to make a huge improvement across the board.

I hope this information is of some benefit in this discussion.

Mark

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