I have a Bose 302 subwoofer in our film studio - I occasionally need to turn it down a few db - depending on the material being played back - as the amp is in a different room - it is not practical to turn it down via the amp. Is there a wall mount device that may work for this? thanks
Joe,
There are many speaker-level volume controls on the market, some are wall mounted. a google search for those terms will yield many results, which may or may not not work well with the low frequencies or power involved. A better solution would be to adjust the drive level to the amplifier from its source, i.e. the crossover or system processor.
you mentioned this is in a film room. An even better solution would be to perform a SMPTE level alignment of the system and leave it alone after that. That way x program in your room is just as loud as x program played in any other film room. If you are unfamiliar or lack the tools required, an experienced professional is never more than a phone call away.
film-tech.com hosts a forum with a directory where you can find a cinema service co capable of doing this in your region.