Author Topic: Splicing Speaker Cable  (Read 795 times)

Offline Carnajo

Splicing Speaker Cable
« on: January 24, 2020, 10:25:41 AM »
Any recommendations on how/what to use to splice speaker cable? It's fairly thick cable, 2.5mm.

This is for on ceiling and rear surround speakers so would rather extend some existing cable I already have running throught the in wall conduit.

Offline Cross_over

Re: Splicing Speaker Cable
« Reply #1 on: January 24, 2020, 10:30:45 AM »
Solder and heatshrink

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Offline Carnajo

Re: Splicing Speaker Cable
« Reply #2 on: January 24, 2020, 10:32:55 AM »
Solder and heatshrink

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Ah, the good old fashioned way, was hoping I could get away with something mechanical like a wire joiner/nut or some other connector.

Offline oradba69

Re: Splicing Speaker Cable
« Reply #3 on: January 24, 2020, 10:38:40 AM »

Ah, the good old fashioned way, was hoping I could get away with something mechanical like a wire joiner/nut or some other connector.
Sure a copper ferrule being applied with a good crimping tool will also work well. Obviously heatshrink over the ferrule.
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Offline Carnajo

Re: Splicing Speaker Cable
« Reply #4 on: January 24, 2020, 01:00:34 PM »
Sure a copper ferrule being applied with a good crimping tool will also work well. Obviously heatshrink over the ferrule.

Thanks, perhap's I'll give this a try, only got a network cable crimper but I'm sure I could source the regular variety. Twist the cables together first or just insert into each end then crimp? I guess googling would bring up some handy guides.

Offline chrisc

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Re: Splicing Speaker Cable
« Reply #5 on: January 24, 2020, 02:13:04 PM »
This is a clever device

Its a combo heatshrink and low temperature solder.  Insert wires both ends and heat with a heat gun.  The solder melts, making an electrically sound connection and the heatshrink seals it

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Offline chrisc

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Re: Splicing Speaker Cable
« Reply #6 on: January 24, 2020, 02:14:50 PM »
Thanks, perhap's I'll give this a try, only got a network cable crimper but I'm sure I could source the regular variety. Twist the cables together first or just insert into each end then crimp? I guess googling would bring up some handy guides.


Twist first.  You don't want any loose wire whiskers
Music is the shorthand of emotion

Offline Carnajo

Re: Splicing Speaker Cable
« Reply #7 on: January 24, 2020, 02:17:29 PM »
Twist first.  You don't want any loose wire whiskers


As in twist together, or just twist each end independantly to neaten?


Anyway, that said, that looks like a great jobbie (your other post above) and I know someone with a heat gun I could borrow.  :groovy:
« Last Edit: January 24, 2020, 02:21:22 PM by Carnajo »

Offline Katji

Re: Splicing Speaker Cable
« Reply #8 on: January 24, 2020, 02:40:42 PM »
Twist each lightly.  Twisting together gets inconsistent results, good crimp mashes copper wires together.

Offline georgev

Re: Splicing Speaker Cable
« Reply #9 on: January 24, 2020, 02:46:33 PM »
Did it once, spliced with ferrules and silver solder, but it kept niggling in my mind, till i replaced the whole thing.
Crazy.
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Offline Carnajo

Re: Splicing Speaker Cable
« Reply #10 on: January 24, 2020, 03:23:00 PM »
Just psychological or was there an actual issue?

I wouldn't splice my mains or my stereo music system, but for rear atmos speakers I'm hoping it would be suitable as opposed to buying a whole lot of new copper cable to run. No reason it wouldn't unless it adds a lot of resistance.

Did it once, spliced with ferrules and silver solder, but it kept niggling in my mind, till i replaced the whole thing.
Crazy.

Offline georgev

Re: Splicing Speaker Cable
« Reply #11 on: January 24, 2020, 03:37:14 PM »
Psychological.
Psychoacoustics.
" For by Grace you have been saved through Faith..............It is the free gift of God". Ephesians 2: 8-9

Offline georgev

Re: Splicing Speaker Cable
« Reply #12 on: January 24, 2020, 03:38:03 PM »
To be fair, was the front two in the HT.
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Offline chrisc

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Re: Splicing Speaker Cable
« Reply #13 on: January 24, 2020, 05:26:59 PM »
Whatever you do, must look neat and not as if the gardener made it
Music is the shorthand of emotion

Offline Carnajo

Re: Splicing Speaker Cable
« Reply #14 on: January 25, 2020, 08:41:47 PM »
Whatever you do, must look neat and not as if the gardener made it

You, sir, overestimate my abilities. Or underestimate those of my gardener.

Fortunately the splice won't be visible, but indeed I will do my best.