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Should I use long interconnects, or long speaker cables?

Currently, my equipment rack is placed centered between and behind the speakers.  I’m getting acoustic feedback (rumble) from my tt due to it’s location.  Successfully, I have eliminated this rumble by using a KAB rumble filter.  However, this seems to me like a bandaid approach, and I would like to try to eliminate the use of this filter if possible.  I’m thinking of moving my equipment rack to the side wall to try to eliminate the rumble filter.  My question is, there are two ways to do this.  Is it best to:
#1). Move everything (including the amplifier) to the side wall, and use long speaker cables to connect the amplifier to the speakers.  
#2. Move everything, except leave the amplifier on the floor (on a separate amp stand), and run a long interconnect (20’-25’) from the preamp to the power amp (my preamplifier is single ended only)?
In advance, thanks for your guidance!
louisl
ieales's avatar
ieales
1,201 posts
 
First off, what is the room construction?
Basement, 2nd floor, interior/exterior wall?
All of these affect transmissive coupling.


20 foot unbalanced interconnects with a low impedance output pre-amp into 10x amp impedance will be fine. Canare Star-Quad with screen connected at pre-amp only is excellent.

Short speaker cables are almost always preferred over long. Increasing diameter only helps R, the least worrisome of LCR.
aj523
374 posts
 
I’m not buying the long 20 foot speaker wire degradation issue. I have 50-75 foot daisy chain runs of 12 gauge copper to my super high end outdoor speakers and they sound phenomenal. Or buy anti cable - they tested identical in long vs short runs.
millercarbon's avatar
millercarbon
12,531 posts
 
That's because all the most rigorously controlled experiments prove the best most efficient geometry is daisy chain. Especially when used with super high end outdoor speakers. A few listeners claim to hear slight degradations but they were using super ultra crazy higher end indoor speakers, and also not properly double blindfold testing. My one question is how were you able to daisy chain cable and anti-cable without them annihilating each other?
cakyol's avatar
cakyol
940 posts
 
The rumble could simply be the fact that your tt bearing is worn, which means changing the cables will not make a difference.

As for cables, both for speakers & interconnects, the shorter they are, the better they are.

paulgardner
183 posts
 
@louisl I can confirm that the Nobsound springs that @millercarbon recommends fixed this exact problem for me. I was skeptical but after trying EVERYTHING to eliminate the rumble the springs actually worked. Good luck! 
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