In Reply to: question for Al Sekela about speaker cable RFI filters posted by cporada@cabnr.unr.edu on March 22, 2007 at 20:57:24:
If you don't hear a difference, or enough of one to make further effort worthwhile, then stop. You will not have damaged the resale value of anything.If you do hear a difference, I would use thin spades and put them on top of the speaker spades. Thick, solid silver spades would work better if your binding posts had room for them, and soldering the networks to the cable ends would work best.
Putting the filters inside the speaker cabinets is less desireable because the impedance change represented by the binding posts lies between the cables and the networks. The standing waves on the cable are reflected by the impedance change, so the networks will have less opportunity to absorb energy from them.
You should also put networks at the amplifiers, again with the same considerations.
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Follow Ups
- Try bartc's approach first. - Al Sekela 12:48:29 03/23/07 (0)