There are actually good reasons why solid conductor cables (may) sound better than multistrand, so don't be put off from using them because they are 'for house wiring'.
Somebody fairly recently posted an engineering paper on the (extensively measured) differences between various types of speaker cable, from memory the only cable that significantly degraded the signal travelling through it was mains cable (although it was American mains cable, which may be different to ours).
Hopefully somebody will remember the paper I'm talking about and repost the link. Interesting reading.
Was it this one
Hang on, checking status of author's beard.... status: cracking! Yes, that's the one...
Glad to have been of service but how did you know I have a beard or was it just a lucky guess
Electrocompaniet EMC1UP Cd player , EC 4.7 pre , AW120 DMB power amp , PMC PB1i speakers . Isotek Titan / Nova , Nordost SPM speaker cable , Kimber KCAG balanced interconnects .
Linn LP12 Lingo , Ittok lv3 , Lyra Lydian , EAR834P .
"Everything should be as simple as possible, but no simpler." Albert Einstein .
On a point made earlier. Strictly speaking there are some regulations relating into the type of cables you can embed in a wall. There are also some draft ones regarding lszh or lsoh (low smoke zero halogen) coverings for cables, but I don't think those are in force for residential builds.
One thing that is worth doing is running the cables through trunking in the wall so it can be replaced more readily in the future - say should you decide the coat hanger wire is a little too bright
Hi Fi: Arcam A85, DV88 (CD only), Project Debut II, Sonos ZP90, AE Compact-1. AV: Arcam AVR250, DV79, Sony BDP-S760, Monitor Audio Silver 8i, RS-LCR, RXFX, Sonos ZP90, Pioneer KRP500A. 2nd AV: Pioneer SX-SWR2, Dell Zino HD, KEF KHT2005.2 eggs, Sonos ZP90. Cables: That Cable HDMI, Chord Crimsons, CAT6 backbone Sonos S5s in the bedrooms
The conclusion does suggest that 12AWG 'wire' works well and that is roughly 3 sqmm. It is also a tiny fraction of the cost of branded speaker cable.
Note, twin and earth can be either solid core or stranded (8-12 strands), the paper suggests stranded might be better but I doubt the difference would be significant in practice.
My mistake it was the car battery jumper cables that were rubbish. Does suggest that different pieces of wire can have an impact (so maybe leave the coat-hangers in the wardrobe) but as you say whether it's noticable in the real world is a different matter.
My 'proper' system is passive and glows in the dark courtesy of some rather nice EL34s, the speaker cables that were 'designed' to go with it comprise (paired) single runs of multistrand (hundreds of strands) cables.
I assumed that the very large number of very fine strands was important sound quality wise, but it turns out that they were cables designed for the test probes on expensive measuring gear and chosen for their flexibility and the fact that they came in black and red as standard.....
We do so many shows in a row,
And these towns all look the same,
We just pass the time in our hotel room
And wander 'round backstage,
Till the lights come up, and we hear that crowd,
And we remember why we came.
Yes, I'm sure there are some interesting alternatives to the remote speaker option. Having installed wires, I can decide at my leisure which route to take.
I sometimes think that a good quality DAB radio might do the trick. In addition, I currently have much of my music as FLAC files on my computer, connected to my main hi-fi system with a Squeezebox Touch. Is there scope to extend that to the new extension?
Decisions, decisions. Any help would be appreciated.
Thanks to all who commented. I went with these, suggested by abacus:
Partly because I had to visit B&Q to get some tiles.
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