New Posts New Posts RSS Feed - Home Brew
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Welcome to the Graham Slee Audio Products Owners Forum

 

Open to all owners plus those contemplating the purchase of a Graham Slee HiFi System Components audio product and wishing to use this forum's loaner program: join here (Rules on posting can be found here)

This website along with trade marks Graham Slee and HiFi System Components are owned by Cadman Enterprises Ltd

Home Brew
 Post Reply Post Reply Page  <1234 5>
Author
  Topic Search Topic Search  Topic Options Topic Options
John C View Drop Down
Admin Group
Admin Group

gspaudio moderator

Joined: 13 Jan 2008
Location: Sheffield
Status: Offline
Points: 197 		Post Options Post Options   Thanks (0) Thanks(0)   Quote John C Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2008 at 12:30am
dc2
 
In my opinion, low capacitance and good screening are major factors in a good interconnect cable. I'm a firm believer in screened interconnects and don't really take to the idea of the unscreened type that have become so popular. Perhaps it's down to the 14ish years I worked in broadcast/recording and pro audio.
 
Graham and I recently did a test on two such unscreened cables and compared them to the Cusat we make and to some other interconnects I had made using RG58U. Both the unscreened cables were about 10-12 db higher (worse) on RF noise pick-up. Unhappy
 
As Sol says - "try it and see" Smile
 
If you're going to try other cables too, if you use any twin or quad etc & screen, as many people have (myself included), be aware that by connecting any of the conductors in parallel will increase the overall capacitance of the interconnect. You may already know this but others may find it useful.
 
One thing we have found out, regarding directional cable, is that if the cable is printed on the outer insulation the sound reproduction is better if you have the signal going in the direction of the print. Still not worked this one out but I know Leo will agree with me. Also, flex the cable, or whirl it around a bit (sounds silly but bare with me). This helps break the bond between the conductor and insulation reducing the skin effect and slowing down of the signal. This may not make much difference with teflon insulation because of its non-stick properties. It's worth giving them time to run in too.


Edited by John C - 01 Feb 2008 at 12:42am
Turntable and Headphone Audio
Back to Top
leo View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 Jan 2008
Location: uk
Status: Offline
Points: 53 		Post Options Post Options   Thanks (0) Thanks(0)   Quote leo Quote  Post ReplyReply Direct Link To This Post Posted: 03 Feb 2008 at 2:24am
Originally posted by John C John C wrote:

Still not worked this one out but I know Leo will agree with me.


I would never have believed it but amazingly there was a difference!  hard to explain but having the writing going to the amp sounded better.

I was one that also used to use unscreened cables but now use these and theres no going backWink
Back to Top
dc2 View Drop Down
New Member
New Member
Avatar

Joined: 18 Jan 2008
Location: UK
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dc2 Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2008 at 12:36am
Thanks for the advise John.

I will try the run in method for the belden cable

Stephen H. Lampen has an installers book on av cables, cost very little and may learn something new and worthwhile.
Back to Top
ramsay View Drop Down
Regular
Regular
Avatar

Joined: 13 Sep 2009
Location: Glasgow
Status: Offline
Points: 41 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ramsay Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2009 at 1:28pm
ever find any pictures for the diy job? money is tight or i would be getting myself a cusat Ermm

just have to start saving!
Monday you're the pigeon, Tuesday you're the statue, Wednesday you're the pile of sick that mysteriously disappears from the pavement overnight..
Back to Top
Graham Slee View Drop Down
Admin Group
Admin Group
Avatar
Retired

Joined: 11 Jan 2008
Location: South Yorkshire
Status: Offline
Points: 16298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2009 at 10:31pm
I guess we could chuck all the bits in a bag and just charge [M]aplin one-off prices for each bit to make a meager profit? But the temptation is to do some proper instructions professionally presented which costs...

Suggestions on ball park prices please (from all who are interested)...

What would you see as a fair price? And what would you like in the bag?

Yes, this IS blatant market research, but there aren't usually many chances to influence manufacturers these days. Smile
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
Back to Top
ramsay View Drop Down
Regular
Regular
Avatar

Joined: 13 Sep 2009
Location: Glasgow
Status: Offline
Points: 41 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ramsay Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2009 at 12:56am
thats a tough question!
 the service u would be providing would be sourcing quality components which would save trawling the shops/internet - this would be a considerable saving on frustration and being potentially misled for us unenlightened.
 might be a nice idea to have your resident cables expert put together something in the way of education on basics of how things work, effects of various factors on the signal etc. i think the whole kit thing is an experience that helps you learn a little more about something interesting without putting in the real effort of study, hard work and so on - you have done all the real leg work.  like you say, this does cost. having no real idea what quality materials cost (and yes, i do believe you deserve to charge a bit more than cost price on components for a kit), i would be hard pushed to comment however you are running a business and your knowledge and honesty are definetely a premium service.
you have the opportunity to offer customisable kit of high quality at a reasonable price - this seems to be your forte alreadyThumbs%20Up
lets see what kit aficionados think?

ps i just got my revelation today  Big%20smile
  cant wait till it is properly run in, already excellent sound and it is small enough not to encourage derision from the missus.. will be giving the 702s the radiator treatment too. i am lucky enough to have enough hair to cusion them but still quite tight. bass is definitely improving though. seems less muddy. cheers for all ur hard work gentlemen!


Edited by ramsay - 15 Oct 2009 at 12:57am
Monday you're the pigeon, Tuesday you're the statue, Wednesday you're the pile of sick that mysteriously disappears from the pavement overnight..
Back to Top
Fatmangolf View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 23 Dec 2009
Location: Middlesbrough
Status: Offline
Points: 8998 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 09 Oct 2010 at 11:14pm
If it helps, I  use the Maplin (Shark) 75 ohm AV cable (about 60pF per metre) and the 8mm phono plugs they sell. I silver solder the live central conductor and clamp the debraided shield wires. This combination costs about £20 to make a very good 1m cable if you already have tools including solder. I agree about the directionality and also about flexing the cable to free the insulator/dielectric, both make a difference to the sound.
 
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
Back to Top
 Post Reply Post Reply Page  <1234 5>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.172 seconds.