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Post by Mr Whippy on Dec 12, 2016 22:52:10 GMT
Does it make a great deal of difference?
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Post by kettlechips on Dec 13, 2016 9:48:04 GMT
Sometimes. Depends on the original CD player. I've had success with replacing the clocking on a couple of older Technics and Philips players.
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Post by MartinT on Dec 13, 2016 10:12:27 GMT
It made a big difference in the Sony SCD-1 SACD player I used to have. However, power supply improvements made a better improvement in the current Ayre C-5xe MP SACD player I use now. It depends, really, on the weakest part of the circuit.
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Post by pre65 on Dec 13, 2016 13:48:42 GMT
What is the CD player in question and how much will it cost to do the mods ?
I'm considering a Cambridge CXC transport @ £300.00.
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Post by miller65 on Dec 13, 2016 19:06:37 GMT
I have a Cambridge CXC transport and would also like other peoples opinions experiences on reclocking . I run the transport through Caiman SEG ( mode 3 ) although really pleased with the results just wondered if an advantage to having the CXC reclocked .You read many things about reclocking reducing jitter etc but as I am no techie not sure if the performance of the Caiman would be improved as I not sure how the DAC processes the music received ?
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Post by Mr Whippy on Dec 13, 2016 19:47:04 GMT
The CD is a Technics SL-P1200.
As for cost - I can't say. Earlier in the year ferreting about eBay I found a Chinese seller advertising one. It was the first time I had seen one on eBay.
Should have put it on my watch list as I can't find any listed now.
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Post by stanleyb on Dec 13, 2016 19:58:22 GMT
I have a Cambridge CXC transport and would also like other peoples opinions experiences on reclocking . I run the transport through Caiman SEG ( mode 3 ) although really pleased with the results just wondered if an advantage to having the CXC reclocked .You read many things about reclocking reducing jitter etc but as I am no techie not sure if the performance of the Caiman would be improved as I not sure how the DAC processes the music received ? The SEG reclocks the CD data, which is one reason why you can now hear previously obscured audio details.
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Post by Mr Whippy on Dec 13, 2016 20:05:10 GMT
Just found 23 listed for "low jitter clock".
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Post by Mr Whippy on Dec 13, 2016 22:05:20 GMT
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Post by MartinT on Dec 14, 2016 9:01:15 GMT
Just remember to keep the leads very short or you'll undo all the good work.
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Post by yomanze on Dec 14, 2016 13:07:10 GMT
Just remember to keep the leads very short or you'll undo all the good work. Yep, there needs to be careful attention to PSU and grounding, so the fancy new clock doesn't get modulated / spray noise into the system / increase jitter! Ideally needs to be fitted by a pro, with a scope.
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Post by miller65 on Dec 14, 2016 13:32:52 GMT
Thanks for your input Stan , so just to clarify in your view the reclocking of a cd transport would show no discernable difference in sound quality as the Caiman reclocks anyway ? I was under the impression jitter reduction would improve the signal from the cd player and therefore the DAC would be processing a more accurate reproduction of the cd prior to reclocking .
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Post by yomanze on Dec 14, 2016 14:28:19 GMT
Thanks for your input Stan , so just to clarify in your view the reclocking of a cd transport would show no discernable difference in sound quality as the Caiman reclocks anyway ? I was under the impression jitter reduction would improve the signal from the cd player and therefore the DAC would be processing a more accurate reproduction of the cd prior to reclocking . Depends what Stan means by reclocking. If it is true reclocking, where the clock signals are 'ignored', and the data is buffered into the DAC, and clocked back out using a crystal oscillator, then the transport doesn't really matter. If using a PLL, which only rejects jitter above certain frequencies, and needs the transport's clock signals to work in the first place, then transport quality is much more important.
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Post by miller65 on Dec 14, 2016 17:38:29 GMT
The mode I use on the Caiman SEG mode 3 is described as Data recovered clock processing mode a PLL option is also available but I prefer the mode 3 option
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Post by MartinT on Dec 15, 2016 7:16:48 GMT
I think jitter is still important. Don't leave all the work to the DAC - feed it a more clock stable signal from the transport and it'll sound better.
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Post by miller65 on Dec 15, 2016 8:58:59 GMT
Thanks for the feedback I will look into the costs etc I know Fidelity Audio Doncaster offer the service as I have used them previously Chevron Audio Derby I believe Colin who runs the business is now semi retired , does anybody know any other companies worth considering ?
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Post by MartinT on Dec 15, 2016 12:16:30 GMT
Audiocom used to provide a clock upgrade service, not sure if they still do?
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Post by yomanze on Dec 15, 2016 16:28:36 GMT
The mode I use on the Caiman SEG mode 3 is described as Data recovered clock processing mode a PLL option is also available but I prefer the mode 3 option Bravo to Stan. PLL will be transport-dependent for quality, would love to hear your findings of hooking up a horrendously jittery transport & seeing if it makes a difference in mode 3.
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Post by Mr Whippy on Dec 15, 2016 19:23:59 GMT
Trichord Research do a Clock 2 for £62 + VAT & Carriage and a Clock 4 for £122 + V & C. I think this is the diy fitting price. They will, of course, fit it for you.
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Post by miller65 on Dec 21, 2016 11:54:15 GMT
Thanks for the info guys I will contact the companies mentioned in the new year for pricing etc .
Unfortunately I do not have a poor high jitter CD transport to check out the difference and merits of Stans reclocking but from the comments think I may go ahead at some stage and reclock the CXC.
My own school of thought is that I found a definite improvement in using Electric beach Rockin Rollers and also internal dampening the cd case on the CXC so I in line with MartinT comments I would assume a better quality transport would yield better results but guess thats a debatable subject in itself !
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