Russ Andrews voltage reg

stoolpigeon · 7th July 2007, 10:05 AM

Some years I heard a Naim preamp which had been upgraded with a Russ Andrews voltage regulator. I heard before and after and there was quite an improvement in sound quality.

I am now looking at all the different regulators around and wondering if this RA design is still available somewhere. I could be wrong but I think the designer was Paul .......

Anyone remember?

Was there a HV version for tubes?

Greg Erskine · 7th July 2007, 10:08 AM

Hi stoolpigeon,

This forum might have the information. Lots of Naim and regulators threads:

http://www.pinkfishmedia.net/forum/forumdisplay.php?f=8

regards

tinitus · 7th July 2007, 12:18 PM

Neat little "aussie" thingie

http://www.bursonaudio.com/Burson_Super_Regulator.htm

carlmart · 7th July 2007, 12:34 PM

Quote:

Originally posted by stoolpigeon
Some years I heard a Naim preamp which had been upgraded with a Russ Andrews voltage regulator. I heard before and after and there was quite an improvement in sound quality.

I am now looking at all the different regulators around and wondering if this RA design is still available somewhere. I could be wrong but I think the designer was Paul .......

Anyone remember?

Was there a HV version for tubes?

Do you remember what time that was? Was it IC or discrete? What have you tried and like/didn't like?

What Paul... do you talk about?

stoolpigeon · 7th July 2007, 02:09 PM

I am trying to remember some details.

It was mid 1990's I heard this preamp and I know Russ Andrews had quite a range of parts and upgrades.

The reg was discrete and there were at least 2 versions. I think the more expensive was around 100 UK pounds.

The sound of the upgraded Naim, which isn't one of my favourites, was much less in your face and more 3 dimensional than standard.

At the time RA was introducing a range of amps and speakers and I think the amp designer did the voltage reg as well. Interesting speakers with a large woofer and very efficient.

I'm sure some of the UK members will know what I'm talking about!

martin clark · 7th July 2007, 02:21 PM

Sorry I don't recall that particular item, though Russ has been offering a SMPS-based little PSU for Naim preamps recently.

There's quite a bit of stuff on PSUs and modding Naim generally gathered on my little site if it helps though: www.acoustica.org.uk

Geoff · 7th July 2007, 05:00 PM

Quote:

Originally posted by stoolpigeon
........ I could be wrong but I think the designer was Paul .......

Anyone remember?

The designer was Paul Hynes. See the following website for his latest offerings:

http://www.paulhynesdesign.com/

Quote:

Was there a HV version for tubes?

Yes there was. If you are interested, email me and I will send you a scan of the appropriate page from the 1995/6 RA catalogue (not that it gives much in the way of details about the regulator itself).

stoolpigeon · 8th July 2007, 08:19 AM

Thanks Geoff, that seems to be him, but unfortunately no circuit details.

Can anyone tell the basics of the design from the photos? A variation of the Jung/Diddens type?

I know there are plenty of reg designs around but this one I remember as providing a fairly obvious improvement rather than just sounding different.

analog_sa · 8th July 2007, 08:43 AM

This is quite amusing. Apparently a market niche exists where tweakers are eager to support higher profit margins than those in high end audiophile equipment

Are tweakers more gullible than ordinary audiophiles?

Nordic · 8th July 2007, 09:43 AM

...more desperate.

7th July 2007, 10:05 AM	#1
stoolpigeon diyAudio Member Join Date: Feb 2007 Location: Laputa	Russ Andrews voltage reg Some years I heard a Naim preamp which had been upgraded with a Russ Andrews voltage regulator. I heard before and after and there was quite an improvement in sound quality. I am now looking at all the different regulators around and wondering if this RA design is still available somewhere. I could be wrong but I think the designer was Paul ....... Anyone remember? Was there a HV version for tubes?

7th July 2007, 10:08 AM	#2
Greg Erskine diyAudio Member Join Date: Jan 2002 Location: Sydney/Australia	Hi stoolpigeon, This forum might have the information. Lots of Naim and regulators threads: http://www.pinkfishmedia.net/forum/forumdisplay.php?f=8 regards __________________ Greg Erskine

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7th July 2007, 02:09 PM	#5
stoolpigeon diyAudio Member Join Date: Feb 2007 Location: Laputa	I am trying to remember some details. It was mid 1990's I heard this preamp and I know Russ Andrews had quite a range of parts and upgrades. The reg was discrete and there were at least 2 versions. I think the more expensive was around 100 UK pounds. The sound of the upgraded Naim, which isn't one of my favourites, was much less in your face and more 3 dimensional than standard. At the time RA was introducing a range of amps and speakers and I think the amp designer did the voltage reg as well. Interesting speakers with a large woofer and very efficient. I'm sure some of the UK members will know what I'm talking about!

7th July 2007, 02:21 PM	#6
martin clark diyAudio Member Join Date: Jul 2003 Location: Bath, UK	Sorry I don't recall that particular item, though Russ has been offering a SMPS-based little PSU for Naim preamps recently. There's quite a bit of stuff on PSUs and modding Naim generally gathered on my little site if it helps though: www.acoustica.org.uk

8th July 2007, 08:19 AM	#8
stoolpigeon diyAudio Member Join Date: Feb 2007 Location: Laputa	Thanks Geoff, that seems to be him, but unfortunately no circuit details. Can anyone tell the basics of the design from the photos? A variation of the Jung/Diddens type? I know there are plenty of reg designs around but this one I remember as providing a fairly obvious improvement rather than just sounding different.

8th July 2007, 08:43 AM	#9
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	This is quite amusing. Apparently a market niche exists where tweakers are eager to support higher profit margins than those in high end audiophile equipment Are tweakers more gullible than ordinary audiophiles?

8th July 2007, 09:43 AM	#10
Nordic diyAudio Member Join Date: Sep 2005	...more desperate.

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