Long live the 74VHC logic ! - diyAudio
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Old 28th February 2003, 06:55 AM   #1
rbroer is offline rbroer  Netherlands
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Thumbs up Long live the 74VHC logic !

I was using a 74HC74 for my synchronous reclocker (non oversampled TDA1543 with passive I/V).
It is powered by a NPN emitter follower "regulator", with current sourcing three LEDs (bypassed) for the reference.
Yesterday I exchanged it for a VHC version, as some have suggested to "sound" good.
To my very big suprise the improvements were not subtle
Biggest change is the "coldness" has gone, sounds "warmer".
Basses are slightly better and there is a little more "air".

Thanks to Elso Kwak for this nice tweak
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Old 28th February 2003, 11:53 AM   #2
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Lightbulb VHC logic

Hi Rudolf,
You arewelcome.
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Old 28th February 2003, 12:25 PM   #3
tiroth is offline tiroth  United States
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Have you tried F(AST) logic?
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Old 28th February 2003, 01:05 PM   #4
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Elso, I've got a philips CD624 and a Cambridge DacMagic2.
For which device would it make sense to change the clock or should I reclock both?
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Old 28th February 2003, 03:21 PM   #5
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Smile Reclocking

Hi Tazzy,
Ooops, with both players I am not familiar.
In my limited experience I have found that every type of CDP reacts differently to my clock.
The Philips CD-380 and CD-650 get more bright.
My old Sony CDPX33ES changed fom unlistable to barable. and in the cheap Sony CDPM27 the difference was not too great.
I suggest to built one clock and try it in both players. If lucky you have only to change the crystal or not even that (if the frequency is the same).
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Old 28th February 2003, 04:59 PM   #6
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The philips is the cd player (loopwerk) and the cambridge is the dac ;-)
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Old 28th February 2003, 05:41 PM   #7
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Lightbulb KWAK-CLOCK

Hi Tazzy, Sorry I was confused.
The KWAK-CLOCK is for installation in the transport and the Asynchronous Reclocker can be installed in your DAC, just before the DAC chip.
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Old 1st March 2003, 03:15 AM   #8
jcarr is offline jcarr  United States
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Elso:

Have you ever installed your KWAK-CLOCK and/or Asynchronous Reclocker into a Marantz DR-17 combination CD player / CD-R burner?

If not, do you know of anyone else who has?

Any other effective modifications for a DR-17 would also be appreciated.

regards, jonathan carr
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Old 1st March 2003, 07:04 AM   #9
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Default DR-17 Mods

Hi Jonathan,
I did a search in my received emails but no reference to the DR-17. Me myself have never seen this model.
Sorry not being able to help you better.
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