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Need to lay a portion of my high-end speakers cable under the floor ...

My [unfortunate] listening room layout means I am >compelled< to lay the middle third of my high-end speaker cables [2.5m each] under the floor. Sadly, this (non-ideal) arrangement is unavoidable (not least for safety reasons). I plan to have a 1 to 2 inch diameter duct (plastic or wood) laid down under the floor to act as the cable conduit over this mid section.
Apart from the fact that this arrangement genuinely sucks, are there any tips, experiences, tricks I can do to ensure I minimize the inevitable downside from this unfortunate situation? (Yes, moving house is an option ... moving listening room is not).
Is there any "conditioning" I can do to the underfloor conduit before hand to minimize detrimental distortion? Will raising the exposed cable segments be a total waste of time? System has Nordost SPM2s, but I will be upgrading soon (Ansuz perhaps) feeding Raidho D3s. Any ideas welcome.
128x128chronoglidesky
bdp24's avatar
bdp24
9,792 posts
 
See what the cable maker(s) say.
gdnrbob
4,444 posts
 
I can't see how a cables' position under or on the floor could possible make a difference. In my mind, having it under the floor(which is what I am doing), is preferable, to lying on the floor. As Stringreen said, is it near any AC wires?
Wow, I wish I only had 2.5 meters between the speakers and amp.
chronoglidesky's avatar
chronoglidesky OP
45 posts
 
No AC or other possible issues, I think. I doubt if a plastic or wooden conduit would make any difference. Yup, 2.5m ... I guess you win some and lose some. Will post pics on the Systems when all the work is done. Glad others here have not had issues.
stereo5's avatar
stereo5
6,388 posts
 
My  22 foot long speaker cables are under the floor and my system sounds just wonderful.  I have never had issues with any kind of noise.  Why go through the trouble of running a conduit?  Just lay em between the rafters and be done with it..  Just remember to leave some slack in the cables at both ends where it goes through the floor.
rcprince
3,070 posts
 
I had 40 feet of interconnect under the floor of my old house.  Since it was a 12 foot deep basement under the floor, I was able to suspend the cables from the basement ceiling with silicone coated rubber bands suspended from hooks in the beams, which did a pretty good job of isolating the cables from vibrations (more important with interconnects than speaker cable, but something you might want to keep in mind).  Did not need a conduit for them due to the depth of the basement--don't know your situation.
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