Digital Drive: Re: Well, you are right, but.....(long)... by Elso Kwak Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

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Posted by Elso Kwak (A ) on August 1, 2003 at 00:01:56

In Reply to: Well, you are right, but.....(long)... posted by Alex Peychev on July 23, 2003 at 17:14:26:

Hi Alex,
I agree 100% with you that those Sony a beautiful made, built like a tank transports.
But the problem with the Sony's of that generation is they have two clocks: 45.1584MHz and 16.9344 MHz, the latter being synchronized to the former by a CMOS oscillator and a three leaded crystal.
So replacement of the 45.1584 MHz clock will not bring the maximum soundquality as the CMOS oscillator baddens the clock.
A possibility is to only replace the 16.9344 MHz clock and use the Sony only as a transport. (the DAC inside is bullshit anyway).
Only the German firm Swoboda seems to have solved the clock-problem as they are offering a board replacing both clocks.
Most modders are simply offering a 45.1584 MHz clock and keep silent about the 16.9344 MHz clock.
As a sidenote I find the sound of a old swingarm Philips CD-650 better than the sound coming from a Sony CDPX-33ES. (Both with the same KWAK-CLOCK)
ELSO

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