[Elecraft] OT: Speaker Wire Recommendations?

[Lyn Norstad]

Are you certain that the RF is entering your audio system via the speaker wires?  There are other possible points of entry that are more susceptible ... namely component interconnects, AC power wiring and other "low level" access points.  RF chokes on all such cables may be necessary.

That being said, it probably wouldn't hurt to replace the existing speaker wiring with well shielded, twisted pair.  Just make sure to use a heavy enough wire (you say 'only 50 watts' but you don't specify the wire length), and to properly ground the shield.  The one pitfall is that you will be adding capacitance to the speaker wires.

Step 1 would seem to be exhaustive testing thru process of elimination.

73
Lyn, WØLEN



-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Clay Autery
Sent: Friday, January 10, 2020 2:10 AM
To: Elecraft Reflector
Subject: [Elecraft] OT: Speaker Wire Recommendations?

OK... so I am knee deep in assembling and installing a subRX, et al., 
but got reminded by the XYL that I STILL have not addressed the signal 
bleed into the audio system via the long runs of parallel conductor 
speaker wires in the HT setup.
In order to maintain a high "SAF" (Spouse Acceptance Factor), I need to 
deal with this issue WHILE I am in the attic re-configuring the network 
and routing various shack related wiring.

I cannot imagine a stellar group of operators as are gathered here have 
not had to deal with this before.  <grin>  I am hoping that replacing 
the speaker wire with either simple twisted pair (or shielded, twisted 
pair, w/shield properly terminated) will mitigate the hits the HT system 
is taking.

*Q:  Do any of y'all have recommendations for a particular wire stock 
for use in this application?* Small system...  only about 50W per 
channel on the 5 main speakers, so they don't have to be monster-sized 
conductors.  I considered using CAT-5(+) wire and bonding all 4 pair to 
a single loop, but I don't think a single run would be enough copper 
(?), and I don't want to make multiple runs per driver.

*Any ideas?*

73,

-- 
______________________
Clay Autery, KY5G
(318) 518-1389

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