New Paul Hynes SR5 Power Supply

Hi Marco,

The DC leads I normally supply with the SR3, the SR5 and the SR7 are constructed from three cores that are braided, either with oxygen free copper with synthetic silicone rubber insulation, or fine silver with Teflon insulation. I am not claiming any originality for this construction method. It has been used by Ray Kimber, and others in the audio industry. I like the way this type of cable works whether for signal or power leads.

Martin is correct in stating that the construction method increases the core to core capacitance, and reduces inductive effects. It’s also good at rejecting RFI. This is precisely what is required when the power source is any distance from the load. This type of cable is beneficial in this instance as the very low impedance at high frequencies, of the SR power supplies, would be progressively decoupled along a cable without these characteristics, which would reduce the effectiveness of the power supply in damping RFI along the cable. An inductive cable would show rising impedance with frequency, allowing more RFI pickup. Longer leads would exasperate this situation as the further away from the power supply the higher the high frequency impedance would be. It’s all a question of degree, as with anything in HiFi, you have to look at the operating conditions and optimise the working environment in the best way you can. This is why the remote power supply is not the whole answer and why internal regulator installation in the SL1200/SL1210 provides optimisation of the power supply to load distance issue allowing lower impedance at the load itself as well as isolating circuit section power feeds from each other.

I used to provide design consultancy to Russ Andrews circa late 1980’s and early 1990’s, and everything we worked on had the Kimber version of the woven triple core cable in the signal path, either copper or silver, and the multicore woven cable in the power distribution for DC and mains. I have to say that Ray’s cable products are excellent and I am happy to endorse them.

Regards
Paul

Woops! I forgot to discuss the connector issue.

A quality XLR with a typical contact resistance when new of around 3 milliohms is a far better connector than the low cost DC connectors. Even better is the Jaeger industrial connector with a typical contact resistance of less than 1 milliohm. As a custom option I fit the Jaeger to all my power supplies for the DC outlet.

Regards
Paul

I think the kimber speaker cable and kimber mains cable or one and the same, any decent mains cable will work better than the thin ones supplied by most manufacturers with their kit.

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Originally Posted by Marco

Indeed, and that's precisely what I'm hearing :)

There's definitely mileage in future PH SR3/5s and Timestep PSUs being supplied with high quality DC cables at whatever extra cost.

Marco.

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I have always used the Kimber classicPowerKord which comes fitted with a 13amp fuse and a sticker on the MK plug stating that warranty is denied if this sticker is removed, so far I've never had to replace a blown fuse, except on my Naim XPS2 but thats another story and a half. The Timestep mains cable that came with my TS HE PSU is fused for 5 amps but I'm not going to put a 5amp in the Kimber cable, which I will use, as Russ once advised me that it was the correct fuse for his/Kimber cable, I take that as being correct unless someone knows better?
The 'ordinaire' cable that came with my TS HE has joined others in a gubbins box for emergencies, anyone want to buy it for your electric car :lol:? Don't think it will give you extra mileage?

Now, at last, I have found my TS HE PSU, lost in the loft (I'm sure I'm haunted or summat :scratch:) and the connecting chord to the PSU is a four hole locking collar type, looks good too and maybe it should fit the PH PSU making any furture comparisons for me that much easier?

If I could get my brain and ability around posting pictures I would do a set on the TS HE with connecting chord as you can get a better idea. Have tried following the directives given, herein, but Photobucket will not download?????? Can email the pics to anyone and they put them up? The underside of the unit is locked by a large cross head bolt, presumably to hold a tranformer and make it awkward to slide the innards out for viewing, but it can be done by the really inquisitive boffin or two:eyebrows.

Who amongst us have messed around with ferrite rings? I've put one on the aforementioned Kimber PowerKord but as yet it has not had a test flight.

Ron

I use all Kimber PowerKords in my system and have replaced all the fuses with the special Russ Andrews audiophile 13A fuses (I believe all new PowerKords come with these new fuses fitted). They sound excellent and work really well with the PS Audio Powerplant regenerator. This is not an area I intend to change.

Oh no not another mains cable debate starting up!

Isn't that right up your street? :)

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Oh no not another mains cable debate starting up!

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There is no 'debate'.... Furutech-modified MG DSP2.5s are best, so sez me - end of! :eyebrows:

;)

Marco.

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Originally Posted by MartinT

Isn't that right up your street? :)

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Not really because they always end up with fall outs and heated arguments and various slanging matches etc, etc, etc.

AOS is probably slightly different in that a lot of the members have good enough systems to hear the differences mains cables make. If you had a Marantz CD62 Mk II then maybe not!

Aside I hear very good reports about the PS audio power plant, 2 of my customers have one and say that it's the business!

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Originally Posted by Marco

There is no 'debate'.... Furutech-modified MG DSP2.5s are best, so sez me - end of! :eyebrows:

;)

Marco.

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You were endorsing everyone's favorite cable seller earlier Marco.... Russ Andrews, make your mind up!

Bet you don't have a decent fuse inside the Furutech plugs eh??? £85 for a mains plug and it comes with a 9p fuse in it.