Supra Classic 1.6 Speaker Cable

And it's flame retardant! :hot:

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Yes, I've used it in plenty of DIY and commercial projects. Suitable gauge, sensible size, geometry etc., not particularly expensive, pleased customers who were glad to see something branded in the product, either because they thought it made a difference or simply 'added value'. Being tinned gives a few who care some comfort that it won't oxidise in a high humidity environment too.
 
Internal wiring does not have to possess any magical properties. A short length of the Supra 15 AWG will offer negligible resistance to the current flow.

The Supra has an appropriate gauge - not so thick that its weight would put a strain on the loudspeaker terminals or make soldering difficult.
Sounds like you don't suggested to use something like 14 or 15 gauge for speaker hook up.

When You say the weight of heavy AWG wire would put strain on the speaker terminals, are you taking about the binding posts or the terminal on the drive units?
 
1. I stated that the Supra Classic 1.6 was 15 AWG and that's as thick as I'd advise. I would not recommend using a smaller (heavier) gauge number.

2. A heavy gauge cable can strain delicate tweeter terminals to the point where I've seen them ripped off the tweeter! Woofer binding posts would be more robust. If used in either case, very thick cable should be supported so that it's weight is not simply left hanging on the driver terminals.

P.S. In my opinion, 18 AWG is thick enough for the internal wiring of a domestic speaker.
 
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