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CD Player Upgrades

100.14.102.31
Posted on April 26, 2017 at 08:52:29
Barry
Audiophile

Posts: 1003
Location: PA
Joined: November 24, 1999
Contributor
  Since: January 18, 2009
 Has anyone had experience with Fidelity Audio in the UK? Have you tried their upgrades, purchased any of their voltage regulators, or precision digital clocks?

I'm US-based but considering CD player mods for a Marantz SA7 and may purchase some parts for them.

If you have another source for clocks or regulators and reviews of same, please share. Thanks!


 

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RE: CD Player Upgrades, posted on April 26, 2017 at 17:45:30
fantja
Audiophile

Posts: 15524
Location: Alabama
Joined: September 11, 2010
 I am always interested in mods, especially, for CD/SACD spinners.
Keep me posted.

 

SPower, hmm?, posted on April 26, 2017 at 18:13:33
1973shovel
Audiophile

Posts: 10117
Location: Greenville SC
Joined: February 25, 2007
 I wonder what SPower stands for? It couldn't be Super Power, could it? I have no idea how original their voltage regulators are, but the name sure sounds like a blatent rip-off of the Belleson Super Power regulators.

Here's a bunch of customer reviews of the Belleson regulators, and here's one done by TNT Audio

The link below is to my review of a Belleson in my Graham Slee phono stage, posted over on the Vinyl Asylum. My results were excellent, and to quote from the TNT Audio review, "These regulators are expensive compared to other types, but not compared to cables and other accessories, and in my system they improved things more than any cable I've ever tried..."

Belleson seems less expensive than the UK based regulators, and their tech support is excellent.

Good luck with your project!



 

Thank You, posted on April 26, 2017 at 20:15:21
Barry
Audiophile

Posts: 1003
Location: PA
Joined: November 24, 1999
Contributor
  Since: January 18, 2009
 Project is still in the speculation stage. News of the new Marantz SA-10 has me considering some mods for my SA7-S1 similar to those by Fidelity Audio in the UK (link below). I really like the sound of the stock unit and could live with it happily (?!), so may not do it.

I wouldn't do the work- it's beyond me. I'm not relishing having the CDP out of service long either. Also, I'm still recovering from my Pass Labs XVR-1-3 mods begun a year ago. Thankfully, I should be done with that in a week or so.



 

two old mod for amy digital device. antistatic foam, and upping the AC frequency, posted on April 27, 2017 at 08:58:29
3+4=5
 Both of these mods came from articles in Stereophile.
Way way long ago a comment by a contributor in Belgium about adding antistatic foam to a digital device to block the RFI insinde the chassis from affecting other things inside the chassis.
Particularly effective inside DACS.
Few if any folks seem interested in this mod. But I have used it in my DAC for many years.
Basically use the black foam (not the blue) and cut to fit, then put the foam in baggies (so it does not short out anything) but do run a wire into the foam through the baggies to ground. I fill the chassis with them.
The heat is not an issue, as the device really is no hotter (at least in my experience)

Then upping the AC frequency. Raising the AC frequency going into the product improves the performance of many audio devices.
Problem is hard to find AC. The one solution I have found are old PS Audio P300 and P600 WITH an optional board which allows altered AC frequency output. (The boards are no longer made or available from PS Audio) So if you can find a PS Audio regenerator with the board installed. Then you can up the AC mains frequency to up to 120Hz instead of 60Hz. (I have no idea why no one makes a regenerator with this feature anymore??)
Again, this idea came from a comment in Stereophile.
(I have to say, as commented in Stereophile, the upped AC frequency does not work well with SOME 'digital' power supplies. but regular power supplies in digital gear work fine)

I use both of these ideas in my digital front end. They both work.

 

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