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Ayon cd5-s or Skylla -2 dac. Big improvement

There is 11 steel fuses in the Skylla dac and 12 in the cd5 player
First Synergistic research Big MIGs under the unit are a noticeable upgrade
A good quality aftermarket power cord, plug all open RCA, and xlr openings with the Cardas caps, to block rf noise from entering,
And the biggest by far is replace all the fuses with Hifi tuning Supreme
20mm T fuses yes it is a $500 bill but a small price to pay for
These Silvergold fuses have 8x less resistance vs steel just check the Silver resistance, the level of low level detail , resolution, and stereo separation is Very apparent as well as dynamics being a bit quicker.
If you have invested this much in these units already this is ano brainer
This is possibly better then a cable upgrade and all that steel in
Common fuses is a Huge bottleneck and all that low level hash
Is Gone,clarity you didnot realize was there before. P.s
Ifyou need assistance with values and direction of signal path
Just email me. At audioman58@live.com .
128x128audioman58
branislav
405 posts
 
What tubes do you recommend and how many are are to be replaced?
denon1
345 posts
 
Melbhuy1, can you please tell more info on stock and Russian rectifiers 6C4P that can be used in Ayon cd-5s? Right now couple stores on eBay selling Russian 6c4p-ev 1980 from Reflector plan, but the price is very low (below $3 for a tube). The Ayon saying that the 6CP4 must be used in cd-5s or Skylla 2, and using 6c4p tubes will damage transformers. I can’t even find any info on 6CP4 tubes and to add to the confusion some website show 6Z4 as stock rectifiers for cd-5s and some show 6X4.

Does any body know for sure what rectifiers must be used in Ayon cd-5s?
melbguy1
1,438 posts
 
Hi Denon, As Audioman noted earlier, the stock Chinese rectifiers can lose their composure with complex orchestral passages, so it's worthwhile replacing them with NOS rectifiers. Audioman mentioned some rare (and expensive) examples, however in this Ayon circuit, the rectifiers are about one evolutionary step above the lightbulb. Rectifiers can be more critical in some circuits (eg: Modwright), however my Audio Engineer certainly didn't think that was the case with the CD-5s, hence I wouldn't spend any more than needed. Also remember 6H30DR tubes used to cost US$15.00 years ago, so don't be concerned about the price ($3.00). To address your concerns, there is no such tube as a 6CP4. That is obviously a typo. To clarify, Ayon recommended I use NOS Reflektor 6C4P tubes in lieu of the factory rectifiers. There are different suppliers of 6Z4 tubes, however the CD-5s has Chinese variants. It makes sense using the higher quality Russian tubes, but you can spend more if you like. If a website showed the CD-5s was specified with 6X4 tubes, that would appear to be an error. Cheers.
denon1
345 posts
 
Melbguy1
As always, thank you for your clarification and explanation.
audioman58's avatar
audioman58 OP
4,202 posts
 
6c4p is correct Ayon U.S as well as Europe refuses to admit it is a typo
6z4 mini is Chinese and not as good as he Reflector tube which is correct
Very reasonably priced and good for a solid 2-3 years also Ayon U.S
Wants $105 each ? WHat are they thinking ?
These are not 1979-80 6h30 tubes which are now at least this much ,for
Rectifiers $10 dollars U.S is tops be a smart shopper !!
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