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PSU1 cables

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Graham Slee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2015 at 2:53pm
Originally posted by Richardl60 Richardl60 wrote:

One point to clarify the cable used is multi-strand Super-Pure Silver (99.9999%)


OK, that seems to confirm my opinions in listening. 99.9999% is basically "bullion grade" silver. It is a very similar presentation to some interconnects I tried from a well-known cartridge expert some years ago. Putting arguments for and against musical memory to one side, the thing I was aware of was the reinforcement of mid-tones - the tones our ears are most sensitive to.

This is because of the "superconductive" property of silver - most chemistry books point out its superconductivity. And I will also add here, that the differences between copper and silver interconnects cannot be resolved by any audio analyser I have had the pleasure of playing with - that's all of them bar one by the way.

Just because it cannot be measured by audio analysers doesn't mean it can't make any difference - the conductivity has been measured by science! Otherwise, how would chemistry books know? I am saying this for the benefit of the testosterone charged cable-sceptic brigade.

The differences I have heard between silver and copper have stood the test of time, so in my world they do exist. Maybe to other readers they don't, and that's OK by me - we are all different to some degree or another.

Let me explain the differences I find by using an analogy - that of a "compander" which is a piece of electronics used in post-production which can expand or compress the dynamic range.

As many have commented correctly, most music is compressed, and it is very true of vinyl, without it I'm afraid to say vinyl would not "work".

Silver, in my opinion, is akin to turning the compander knob in the direction of expander. Putting more and more silver into a system is akin to turning the expander section up and up.

I don't see it the other way round however. I don't see the use of all-copper as turning the compander in the direction of compress. My reason for saying so, is explained at length somewhere on the thousands of pages of this forum.

I do however see the use of high capacitance cables as compression of the highs, and that a poorly executed copper interconnect design could lead to dynamic range compression.

From an equipment designers point of view, it would be wrong to use silver because it would risk me producing a damped or over damped sound, ruining the fidelity of the product. On the other hand it is good to have an understanding of silver to prevent a situation where any emphasis resulted in something unlistenable when using silver (either interconnects or a mains lead such as this).

Therefore, should I develop a mains lead, it would have to be non-silver based, and have what many on here relate as having the "house sound", which I hope means that it doesn't contribute anything to it. And because of that I would not use silver.

Graham

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Drewan77 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2015 at 3:13pm
I had a phone conversation with John C earlier today and emailed him links to a few sites that I purchased from to make braid armoured IEC and Fig-8 mains power cables for my system. All use copper conductors but are screened, used mainly because of the mass of spaghetti behind my system where interconnects/power cables often lay in parallel. I was not attempting to 'improve' the sound via power cables but to protect the more delicate interconnect signals

I did notice a change in the audio signature (slightly 'fuller' is the only way to describe it) when I added these beefier fig-8 cables to my PSU1s but I really wonder if it is more to do with new & clean copper interfaces at the plug/socket ends?

The only experience I had with silver conductors was the original wiring within my OB speakers which I changed over to Spatia a couple of years ago. It took away a thin veil of treble harshness that the silver definitely seemed to impart
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richardl60 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2015 at 4:50pm
Thank you again Grahm I agree that in the same way BMW prefer to stick with the philosophy of rear wheel drive, any particular manufacturer will have their own ideals, aims etc and commendable that there are adhered to. 
 
The only other supplementary point I would make that from my own listening is that my mains HUB, Mains cables and inerconnects are all higher grade pure silver than the lead you have and in the context of my own environment many unseen colurations have been removed with the key features being of openness & naturalness - in combination with each other (end equipment) this end result does sound 'different' and if switching back to OFC copper produce distint colourations which are the 'copper sound' rather than 'Silver sound'.  I would liken this to switchig between vinyl and CD, you know which you are listening to! This even went with switching from WBT cu & silver bannanas - which sounded bright, thin and uncontrolled for quite some time before >100 hours made a significant difference - how a plug material switch can take time to burn in or have this impact is beyond me but probably the single least rational change vs benefit I have encounterd.
 
As an adendum, I have found that the mains 'upgrade' path has produced the most pronounced route (i.e. more substantial than interconnects of speaker cables and not by a small margin).
 
Anyway good to see the thought process has been stimulated! 
 
Good luck with whatever you decide to do.
 
Kind regards
Richard
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richardl60 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2015 at 5:05pm
Andrew, hi. Yes I agree conductors need 'appropriate attention' - I have juts acquired a new piece of hardware from a national site and was suprised how dirty the terminals were (speakers in particular); lots of black oxide on my cotton bud!  Contrary to my thoughts some years ago that 'all plugs were the same' I have again changed my views through experiences (mains, interconnects and speakers) so the point
about end connectors does appear valid, though in my opinion supporting the well designed bit between them!
 
As stated elsewehere there is a world of difference between a well designed pure silver/silver plated copper and at no stage have I ever encountered harshness via my pure silver cable you refer to, though everyone has their own experineces on the matter, myself included.
 
I note you throw away line on mains cabling, my own experinces with mains and interconnects ( & speakers for that matter) mains produce the biggest benefit of all of these connections, certainly with my HUB, Amp & CD, to a lesser degree the PSU F8.
 
Cheers
Richard
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2015 at 7:39pm
I haven't stretched my purse to pure silver like Richard but have heard improvements from some of my mains cable changes.
Jon

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richardl60 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2015 at 2:18pm
As you say open mind & ears!
 
Cheers, Richard
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ServerBaboon Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2015 at 9:55pm
Steve

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Various bits of GSP Kit ..well two so far, unless you count the cables that is.
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