Hum from subwoofer

pmckeealaska
pmckeealaska Posts: 808
edited November 2010 in Subwoofer Hookup & Bass Management
I recently switched up my subwoofer connections on my LSi25's and have noticed a real improvement in bass response. I put my subwoofer cable into the "LFE In" instead of the "Line in". However,'after doing this, imnow notice a hum from the subwoofer. Anything I can do about this?
Music and Movie Rig

Samsung 40" HDTV 1080p
LSi25 Front Speakers
LSiC Center Channel
LSiFX Surrounds
Rotel RB 1080 2-Channel Amp
NAD T763 Reciever
Denon DVD 2900 Universal Player
Audiosource 10 Band Digital Equalizer
Audioquest CV-8 speaker cables
Audioquest Sub-X subwoofer cables
Audioquest King Cobra Interconnects
Monster AVS 2000 Voltage Stabilizer
Playstation 3 120GB Slim
Post edited by pmckeealaska on
· Share on FacebookShare on Twitter

Comments

  • jinjuku
    jinjuku Posts: 1,523
    edited November 2010
    pmckeealaska wrote: »
    I recently switched up my subwoofer connections on my LSi25's and have noticed a real improvement in bass response. I put my subwoofer cable into the "LFE In" instead of the "Line in". However,'after doing this, imnow notice a hum from the subwoofer. Anything I can do about this?

    Assuming your outlets are wired correctly:

    Is the sub power connected to the same outlet? If not try that.

    You can get an isolation transformer. Anything from a $15 Radio Shack hum eliminator to a $50 Art DTI.

    You could remove the ground lug off of the sub woofer cable (I don't really recommend that).
    · Share on FacebookShare on Twitter