Cable between arm and head amp

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flocchini

Cable between arm and head amp
« on: 29 May 2009, 03:34 pm »
I'm looking to experiment with the cable between my Well Tempered arm and newly finished Piccolo. I'd like to hear what others are using. In the past I've used cables ranging from coax surplus to diy silver. Thanks
Bob

tubesforever

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Re: Cable between arm and head amp
« Reply #1 on: 16 Jun 2009, 06:13 am »
Man I must have missed this one while on vacation.  I use just two wire types for connections from tonearms to the Piccolo. 

I either use Cardas 33awg tonearm wire.  This is litz construction, 6 nines pure copper and is cheap.  A foot of red, green, white and blue is just 6.00.  I buy this from Michael Percy. 

The other wire I like is from A-M Systems in Washington.  They sell teflon coated solid core silver wire in 25 ft spools.  The cost is about 75 dollars with shipping.  So a foot of 4 wires comes to about 12 dollars. 

12 dollars a foot for silver wire!  Just make sure you order the 34 awg wire size, otherwise the wire will be so large it might bind and create friction going through the main bearing. 

I like to use Cardas 6 nines copper wire in solid state applications and prefer the silver in tube applications. 

Both of these wires sound very balanced, they break in relatively quickly, and they don't break the bank.  They are very low capacitance so will work well with either MM or MC cartridges.

I use braided copper shielding from the tonearm base to the RCA inputs.  Drain the shield to the earth ground connection of the tonearm lead.  This gives great RF shielding. 

BTW I put these fragile wires into a 14 awg thin wall teflon tube to give the wires more support and provide stress relief.   

I get the braided shield and teflon air tubes from action electronics in Los Angeles.  100 ft of ptfe tubing is about 35 dollars.  The braided copper shielding is superb and also cost effective.

I have experienced very few failures with this wire (an occasional break at the cartridge clip leads) and the results sound like the very expensive boutique wires I used to sell for up to 600 dollars. 

Thats all based on my highly unbiased opinion.....  Its hard to hate something you build yourself!  ;-)

flocchini

Re: Cable between arm and head amp
« Reply #2 on: 16 Jun 2009, 03:42 pm »
Tubes:

Thanks for the feedback. I have used some small coax I salvaged and some home brew silver but a larger gauge than you suggested. I'll further experiment.

I am enjoying my Piccolo. I'll try to post pix shortly. For the caps I ended up with .1 Russian PIOs bypassed with .01 Russian Teflons. Resistors are PRPs with Caddocks as the loading units. All powered by a 12V battery. Quiet and smooth with great detail. Cartridge is Shelter 501.

Best

Bob

GBB

Re: Cable between arm and head amp
« Reply #3 on: 16 Jun 2009, 03:56 pm »
The other wire I like is from A-M Systems in Washington . . .

12 dollars a foot for silver wire!  Just make sure you order the 34 awg wire size, otherwise the wire will be so large it might bind and create friction going through the main bearing. 


I've looked at this wire but worried that it's so thin that I wouldn't be able to strip it without breaking it.  Do you need any special tools or tricks to strip this stuff?

Thanks,
---Gary

tubesforever

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Re: Cable between arm and head amp
« Reply #4 on: 17 Jun 2009, 06:43 am »
My soldering station allows me to run really high heat.  I put a bulb of solder on the tip at about 375 C and dip the silver wire into and out of the puddle. 

After a while the teflon browns up and comes off.     

BTW you have just super annealed the silver so it is easier for the cleaned wire to break off.  I double up my wire de-stressing to make sure the connection stays stable and solid over time.

The silver wire sounds amazing with tube gear!

Perhaps I will post some pics of the process over the next week or so.  I am rewiring an SME 3009 tonearm for a friend.  I will definitely take some pics of the process.

tubesforever

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Re: Cable between arm and head amp
« Reply #5 on: 17 Jun 2009, 06:46 am »
Bob,

I am so glad your Piccolo is finished.  Mine is so quiet I hear all my other gear before I hear the Piccolo.  This is very refreshing for a head amp!

When I took the Piccolo to Ribfest, several high end guys said it was the quietest they had ever heard.

That was quite a complement.  I was just hoping it would be as quiet as my Cinemag SUT.  It is better, at least in the bass lines and the vocals.  It has the least amount of sibilance I have ever heard in a head amp gain stage. 

Jim did good!  The Piccolo can definitely kick some serious booty!

The PRP's sound pretty nice.....no?

flocchini

Re: Cable between arm and head amp
« Reply #6 on: 17 Jun 2009, 06:08 pm »
Jim:

The Piccolo as you know is a fantastic product. I'm enjoying following your lead and experimenting with cartridge loading. It couples beautifully with my 6SN7 Cornet2. The PRPs are very nice. I would not hesitate to use them in any project. I did have trouble with just a few values hitting the 1% tolerances. I used Caddocks at the 100 ohm spots and at the cartridge loading spots. After I get more familiar I will try PRPs at the cartridge loading spot. Also I really like the PIO and Teflon caps. I was going to experiment here but it is hard to pull these out.

Best

Bob