I have a set of Bose Acoustimass 10 series 3 speakers with a sub. I have the sub and speakers wired to a JVC receiver. About a week ago, the speakers started becoming spotty, and now, if BOTH the white and red audio cables are connected to the receiver, the volume seems to dampen as both sides connect. If you plug in only the red or only the white, the left and right speakers respectively function on their proper volume levels.
Does anyone know what is causing this? The speakers have worked fine before, and only recently has this been giving me trouble.
Thanks!
Bose have a really odd system. The cubes only go to 180 Hz and the bass module tries to reach to 180 Hz point which it fails to do by a mile. However the signals below 180 Hz are blended to the bass module. It is not a sub but a bass module.
All your speakers need to be set to large. The bass module does the bass management and blends the LFE to the bass module.
Now you need to check that there is no out of phase condition. If there is this would cause your problem as there would be cancellation in the buffer blender circuit. So make sure all connections at the back of the receiver are correct, especially that all +ve connections go to the red speaker terminals on the back of the receiver and all -ve connection go to the black terminal posts.
You can't miss wire at the bass module end as it is a molded plug. The cube connections are RCA so you can't mess those up.
Check you speaker set up in your receiver set up menu.
If everything is wired and set up correctly, then the electronics in your bass module has failed and it will need replacement. Since this is Bose, failure is highly likely.
You might as well have it up straight. Bose gear is the nastiest junk and should at all times be avoided like the plague.
