Different subs in pairs?
02-27-15: Zd542I know. That's why I put the smiley :-) Mgrif, given that the interference is being heard through the sub, obviously the rationale I stated for putting the clamp near the main amplifier is not applicable, and it would most likely be best to place it around the wires as close as possible to the sub. Regards, -- Al |
It might be best to ask REL about whether timing issues would be a concern in the scenario you are envisioning. Regarding the radio station interference, I suspect that could be eliminated (with no audible side-effects) by putting an inexpensive ferrite clamp around the wires from the existing sub, probably at a point near where they are connected to the amplifier. I would suggest that you take a look at the ferrite clamps listed here, and select one having an appropriate inner diameter. If you can hear intelligible audio from the radio station, I suspect that it is AM and not FM which is being picked up, in which case you would want to select from among those listed under the "Low Frequency 200 kHz - 30 MHz" tab on the page I linked to. If the interference is other than intelligible audio, and/or you somehow feel fairly certain that it is indeed FM, select from among those listed under the "Lower and Broadband 1-300 MHz" tab. Or perhaps buy one from each category, and try both. Assuming that the interference is being heard from your main speakers, and not the sub, I'm envisioning that the radio signal is being injected into the feedback loop of your amplifier, and its AM content is being demodulated as a result of non-linearities in the amp. Which is why I suggest putting the clamp near the amp end of the cable. Good luck. Regards, -- Al |
