small hum coming from sub

d-staylor@hotma
d-staylor@hotma Posts: 1
edited April 2007 in Subwoofer Hookup & Bass Management
I have 2 PSW-1000 subs one is near the front speakers the other is 3 feet behind my couch. The one near my fronts has a small humming sound, if I turn my reciever all the way down no humming, once i turn it up or power the sub on it will hum. Any suggestions? Thanks
Post edited by d-staylor@hotma on
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  • Face
    Face Posts: 14,340
    edited April 2007
    If you can, use a separate outlet for the sub.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • Schwingding
    Schwingding Posts: 363
    edited April 2007
    What happens if you swap them? Does the hum follow the sub or the location? If location - probably some sort of ground loop issue. If location - the sub is not functioning properly and will probably need service.
    HT/music rig
    Panasonic PX60U 50" plasma
    Yamaha 5990 AVR
    Onix SP3 tube amp
    bunch of Outlaw 2200 monoblocks
    DUAL SVS PB12+/2 subs :eek:
    Denon 3910 DVD/SACD/DVD-A
    DirecTV HR10-250 DVR
    Onix Strata Mini mains
    Mirage OM10 surrounds
    Polk CSi5 center
    Polk SC80 rear surrounds
    Samsung BDP1000 blu-ray player

    Bedroom rig
    Jolida SJ302a tube amp
    Denon 2910 universal player
    Onix Ref 1 monitors
    Velodyne minivee
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  • bknauss
    bknauss Posts: 1,441
    edited April 2007
    d-staylor@hotma wrote: »
    I have 2 PSW-1000 subs one is near the front speakers the other is 3 feet behind my couch. The one near my fronts has a small humming sound, if I turn my reciever all the way down no humming, once i turn it up or power the sub on it will hum. Any suggestions? Thanks

    D - does the sub hum when its active (LED is green) and the volume is all the way down on the receiver? If not, sounds like either some noise from the outlet or from before the sub in the audio chain.
    Brian Knauss
    ex-Electrical Engineer for Polk
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