SVS PC-ULTRA HUMMING BADLY!!

Pinktulip7
Pinktulip7 Posts: 249
edited June 2015 in Basic Hookup/Wiring Questions
All the sudden SVS PC-Ultra strata humming continuously, Only time it doesn't humm when only the power Cable connected nothing else!!!So far I have tried the following :
1.Switch to different Outlet
2.Tried different Subwoofer Cable
3.Tried different power Cable besides SVS And nothing stop the Humming!!!as soon I connect the Audio(Line In) Cable it strat humming....
TV :>Panasonic TC-P55VT50
RECEIVER :> HARMAN KARDON AVR 7300
FRONT :> L & R :> POLK RTI A9 500 W
AMP :1> PARASOUND HALO A21 250 W
AMP :2> EMOTIVA UPA-1 200 W
CENTER :> POLK LSiM 706c 250 W
SURROUND SIDE :> POLK RTi A3 150 W
SURROUND REAR :>POLK FXI A6 150 W
DVD PLAYER(HD) :>TOSHIBA HD X-A2
DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
POWER CONDITIONER :> PANAMAX M5400-EX
SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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Comments

  • ken brydson
    ken brydson Posts: 8,772
    Call SVS. They'll get you squared away...
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  • WilliamM2
    WilliamM2 Posts: 4,780
    Have you tried lifting the ground wire on the power cable? Sounds like a ground loop.

    Or if you have cable TV, try disconnecting it where it enters the house.
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  • Pinktulip7
    Pinktulip7 Posts: 249
    edited June 2015
    WilliamM2 wrote: »
    Have you tried lifting the ground wire on the power cable? Sounds like a ground loop.

    Or if you have cable TV, try disconnecting it where it enters the house.
    I have FIOS TV but how it's interfere with the Sub when it's plugged in to different Outlet? And lifting ground wire! Is that mean using three prong to two prong Adapter?If the answer is yes then yes I have tried that already.....It humms loud when Audio in or LFE in connected even it's not connected to AVR or any source...

    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • WilliamM2
    WilliamM2 Posts: 4,780
    edited June 2015
    Different outlets can actually cause the problem, due to different ground potentials. Cable TV connections can cause issues if not properly grounded for the same reason.

    Are you saying it hums with the sub cable plugged in but disconnected at the other end? That would be odd, and you already tried a different cable.
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  • Pinktulip7
    Pinktulip7 Posts: 249
    Yes it humms when nothing is connected in other end!!!
    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • tonyb
    tonyb Posts: 32,981
    edited June 2015
    Pinktulip7 wrote: »
    Yes it humms when nothing is connected in other end!!!

    Was it laying on the carpet or did you put your finger over the other end ? If so, that's going to be a normal response.

    First, use a decent sub cable, if your using a 10 buck monoprice cable or comparable, it's more than likely the cable.

    Second, ground loops are always hard to trace down, but since the sub is plugged into the receiver, try putting the cheater plug, the adapter that goes from 3 prongs to 2, on the receivers power cord and see if that helps some.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
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  • Pinktulip7
    Pinktulip7 Posts: 249
    tonyb wrote: »
    Pinktulip7 wrote: »
    Yes it humms when nothing is connected in other end!!!

    Was it laying on the carpet or did you put your finger over the other end ? If so, that's going to be a normal response.

    First, use a decent sub cable, if your using a 10 buck monoprice cable or comparable, it's more than likely the cable.

    Second, ground loops are always hard to trace down, but since the sub is plugged into the receiver, try putting the cheater plug, the adapter that goes from 3 prongs to 2, on the receivers power cord and see if that helps some.
    Thx for response, and no it's not laying on the Carpet nor touch the other end!!!It's not connected to the Receiver, I am using Monster 1000SW and 600SW Sub Cable. I also have Polk Sub which one doesn't humm at all....

    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • ZLTFUL
    ZLTFUL Posts: 5,652
    ken brydson wrote: »
    Call SVS. They'll get you squared away...

    Apparently you missed this. Give them a call. A fantastic group of folks and customer service second to none.

    "Some people find it easier to be conceited rather than correct."

    "Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
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  • Pinktulip7
    Pinktulip7 Posts: 249
    I called SVS,they suggest to open up the Amp section to see if anything loose inside!!!
    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • ZLTFUL
    ZLTFUL Posts: 5,652
    That doesn't sound right. I've never heard of them telling a customer to open up the sub. They typically request it be set back so that their techs can troubleshoot and repair it. Something doesn't mesh here.
    "Some people find it easier to be conceited rather than correct."

    "Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
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  • Pinktulip7
    Pinktulip7 Posts: 249
    ZLTFUL wrote: »
    That doesn't sound right. I've never heard of them telling a customer to open up the sub. They typically request it be set back so that their techs can troubleshoot and repair it. Something doesn't mesh here.
    Because it out of warranty!!!!!!!!!

    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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  • cnh
    cnh Posts: 13,284
    edited June 2015
    Pinktulip7 wrote: »
    ZLTFUL wrote: »
    That doesn't sound right. I've never heard of them telling a customer to open up the sub. They typically request it be set back so that their techs can troubleshoot and repair it. Something doesn't mesh here.
    Because it out of warranty!!!!!!!!!

    I feel your pain. My own sub took a turn for the worse just after I sparked the power supply of an XBOX ONE while plugging it in last night-the XBOX (for my daughter) is fine. Also way out of warranty, but not as good as your SVS. Now, although the sub works, it has a low grade electrical hiss coming out of it that is definitely NOT a ground loop as I've moved it around and it also does not sound like it's a 60 Hz hum. Looks like yours truly is going to have to pull off the plate amp and look inside. I'm sure I'll have very little knowledge of what it could be. But I did notice that when I rotate the loudness control on the back of the sub all the way to the left and all the way to the right the noise increases or decreases in pitch at 0 and full volume with NO receiver or cable attached to it. lol

    Good luck!

    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • Pinktulip7
    Pinktulip7 Posts: 249
    I will look in to it tomorrow..........
    TV :>Panasonic TC-P55VT50
    RECEIVER :> HARMAN KARDON AVR 7300
    FRONT :> L & R :> POLK RTI A9 500 W
    AMP :1> PARASOUND HALO A21 250 W
    AMP :2> EMOTIVA UPA-1 200 W
    CENTER :> POLK LSiM 706c 250 W
    SURROUND SIDE :> POLK RTi A3 150 W
    SURROUND REAR :>POLK FXI A6 150 W
    DVD PLAYER(HD) :>TOSHIBA HD X-A2
    DVD PLAYER(BLU-RAY) :>Panasonic DMP-UB900
    POWER CONDITIONER :> PANAMAX M5400-EX
    SUBWOOFER :A> SVS SB16-Ultra 1500 W Front
    SUBWOOFER :B> SVS SB16-Ultra 1500 W Rear
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