Telephone cable speaker wire

mrfeedback · 26th March 2002, 01:37 AM

For 10 years or so , I have used telephone 10 or 20 pair internal distribution cable as very low inductance speaker cable.
For performance/economy I don't bother to go elsewhere.
Does anybody use this, and how do you find it to compare to reasonably priced purpose built speaker cable ?

Regards, Eric.

hagtech · 26th March 2002, 02:55 AM

Good choice! Just run several "pairs" in parallel and you get a pretty darn good transmission line.

I like CAT5 networking cable (24AWG solid core) for a more modern approach. Extremely low cost.

jh

leroy · 26th March 2002, 09:27 AM

I have a bad experience with multiple stranded cable as speaker cable. The inductance may be low but the capacitance increases enormously. That leads to loss of detail in the high frequencies. It also might damage the amplifier due to parasitic oscillations.

Jocko Homo · 26th March 2002, 12:11 PM

Give leroy a medal! He understands L vs C in cables.

Hmmmm.......... 2 medals in one day. Must be getting easier in my old age. [joke].

Jocko

dice45 · 26th March 2002, 02:11 PM

Very good choice, Eric!

using something similiar: a twisted pair of Tefcel-insulated copper wire which is NOT tinned or silvered out the outside, pure copper only.

Sounds gorgeous.

From own experiments, i have abandoned multistranded wires, be it for speakers or interconnects and i use wires as thin as possible.

Inspired by Allen Wright's cable cookbook, i use foil/ribbon conductors if i want to maintain both cross-section ultrathin in atleast one direction and required cross-sectional area for low resistance.

I tried this out: 0.1mm thin EMC-shielding copper foil (i insulate it with PP adhesive tape) vastly outperforms the telephone wire if the system's resolution level is high enough. The copper foil is thin, has about 1mm² CSA. If you care about µphonics, choose the self-adhesive variant used for quick-building prototype PCBs and glue them to the floor

or inside the speaker housing.

HarryHaller · 26th March 2002, 06:40 PM

You guys are pulling our legs. No one would go to the trouble to make his own cable when he could spend thousands of dollars for someone elses cable based on some wild theory of the month.

H.H.

jam · 26th March 2002, 06:47 PM

Jocko is on a roll !

How about cash rewards with your medals?

Jam

jam · 26th March 2002, 06:55 PM

Bernhard,

I agree with you. I have had good results with unwrapped foil inductors.
I you insist on buying your cables try the Analysis Plus cables.Check out their web site.

Jam

Jocko Homo · 26th March 2002, 06:59 PM

Maybe I'll give out some 2SK147 violets.

Or maybe a gym sock, formerly owned by Carl Zappa, and still damp. [joke]

Jocko

HDTVman · 26th March 2002, 07:38 PM

Mrfeedback

I've used the same thing, but, you need to keep them short if the amp. can't take hi C loads. Not a problem for amps with good stability.

Have you ever looked at this cable with a TDR (Time Domain Reflectometer)? 8 ohms for 25 pair cable, very interesting

26th March 2002, 01:37 AM	#1
mrfeedback diyAudio Member Join Date: Feb 2002 Location: Perth, Australia.	Telephone cable speaker wire For 10 years or so , I have used telephone 10 or 20 pair internal distribution cable as very low inductance speaker cable. For performance/economy I don't bother to go elsewhere. Does anybody use this, and how do you find it to compare to reasonably priced purpose built speaker cable ? Regards, Eric.

26th March 2002, 02:55 AM	#2
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	CAT5 Good choice! Just run several "pairs" in parallel and you get a pretty darn good transmission line. I like CAT5 networking cable (24AWG solid core) for a more modern approach. Extremely low cost. jh

26th March 2002, 02:11 PM	#5
dice45 diyAudio Member Join Date: Jan 2002 Location: Munich, Bavaria	Very good choice, Eric! using something similiar: a twisted pair of Tefcel-insulated copper wire which is NOT tinned or silvered out the outside, pure copper only. Sounds gorgeous. From own experiments, i have abandoned multistranded wires, be it for speakers or interconnects and i use wires as thin as possible. Inspired by Allen Wright's cable cookbook, i use foil/ribbon conductors if i want to maintain both cross-section ultrathin in atleast one direction and required cross-sectional area for low resistance. I tried this out: 0.1mm thin EMC-shielding copper foil (i insulate it with PP adhesive tape) vastly outperforms the telephone wire if the system's resolution level is high enough. The copper foil is thin, has about 1mm² CSA. If you care about µphonics, choose the self-adhesive variant used for quick-building prototype PCBs and glue them to the floor or inside the speaker housing. __________________ Greets, Bernhard

26th March 2002, 07:38 PM	#10
HDTVman diyAudio Member Join Date: Aug 2001 Location: Chicago area	Mrfeedback I've used the same thing, but, you need to keep them short if the amp. can't take hi C loads. Not a problem for amps with good stability. Have you ever looked at this cable with a TDR (Time Domain Reflectometer)? 8 ohms for 25 pair cable, very interesting __________________ What ever makes the tunes flow

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26th March 2002, 09:27 AM	#3
leroy diyAudio Member Join Date: Oct 2001	I have a bad experience with multiple stranded cable as speaker cable. The inductance may be low but the capacitance increases enormously. That leads to loss of detail in the high frequencies. It also might damage the amplifier due to parasitic oscillations.

26th March 2002, 12:11 PM	#4
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	Give leroy a medal! He understands L vs C in cables. Hmmmm.......... 2 medals in one day. Must be getting easier in my old age. [joke]. Jocko

26th March 2002, 06:47 PM	#7
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	Jocko is on a roll ! How about cash rewards with your medals? Jam

26th March 2002, 06:55 PM	#8
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	Bernhard, I agree with you. I have had good results with unwrapped foil inductors. I you insist on buying your cables try the Analysis Plus cables.Check out their web site. Jam

26th March 2002, 06:59 PM	#9
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	Maybe I'll give out some 2SK147 violets. Or maybe a gym sock, formerly owned by Carl Zappa, and still damp. [joke] Jocko

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