speaker cable static sound

Have you swapped the speaker cables (left to right) to see if the noise moves? If it does, it may be the cables. If not, it's something else.

Not sure if you have tubes or not but could be a leaky or bad tube . I would (as mentioned) try flipping your speaker wires. If that doesn't work ,remove your speaker wires and try some cheapo lamp cord and see if the noise continues.My guess is its not the speaker wire though....

1) If you suspect the speaker cables, slightly raise the volume when the static occurs, and wiggle all the offending channel cable connections while listening for instant changes (both speaker and amp locations). Not much can happen to "standard" speaker cables except poor or deteriorating terminations.

2) As mentioned previously, swap cabling at the speakers only to negate any speaker-related issues. If still from the right speaker, investigate that speaker.

3) COMPLETELY swap the interconnect cabling between the preamp and amp. If the static moves, it's that "right" interconnect cable. If unchanged, swap ONLY the IC connections at the amp. If static moves to the left, it's NOT the amp.

4) Reconnect these IC's back to original configuration, and perform this exact same excersize with the "source" to preamp IC's, thus attempting to eliminate any preamp-related issues. Option: If your "source" has a volume control, bypass the "preamp" and connect it directly to the amp's input.

By now, you should have the "problem" item identified. None of your other listed remedies would confine itself to a single chnl of audio playback (including TV), nor shielding of speaker cables be required. Your scenario sounds like intermittent electronics.

You can e-mail me for futher assistance, and will be glad to help.

thanks for the advice, I will try today the various tests.

I began to notice the static on right speaker only after changing the speaker cables from nordost to audience so that is why I suspected the speaker cable (especially since au24 unshielded sppeaker cable).

I have already tried a different ic between preamp and amp and get same right channel static so I know the problem is not the ic going into the amp.

The intermittent nature of the problem makes me think its either something in amp, like a switched power supply, or you are getting some EMI. Any chance the "right" speaker cable is running near something like in-wall power line for a heat pump, water heater or something else that switches on and off? You might try simply re-routing the speaker cable, since those kind of EMI effects should drop off at 1/d^2, where d is the distance...