Talk Me Through....

wingnut4772
wingnut4772 Posts: 7,519
edited September 2008 in Troubleshooting
...a ground loop please. At least I think that's what it is? It's not a hum per se but rather an annoying buzzing in all the speakers. I can't seem to isolate it.
Sharp Elite 70
Anthem D2V 3D
Parasound 5250
Parasound HCA 1000 A
Parasound HCA 1000
Oppo BDP 95
Von Schweikert VR4 Jr R/L Fronts
Von Schweikert LCR 4 Center
Totem Mask Surrounds X4
Hsu ULS-15 Quad Drive Subwoofers
Sony PS3
Squeezebox Touch

Polk Atrium 7s on the patio just to keep my foot in the door.
Post edited by wingnut4772 on
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Comments

  • treitz3
    treitz3 Posts: 19,029
    edited September 2008
    Darla, you have to get rid of the ground pin on one or [possibly] all of your PC's that are plugged into the wall. If you can't do that, get a cheater plug. Are your IC's parallel with any of your PC's?
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • hoosier21
    hoosier21 Posts: 4,411
    edited September 2008
    do you have cabel TV? Is it connected to this system?
    Dodd - Battery Preamp
    Monarchy Audio SE100 Delux - mono power amps
    Sony DVP-NS999ES - SACD player
    ADS 1230 - Polk SDA 2B
    DIY Stereo Subwoofer towers w/(4) 12 drivers each
    Crown K1 - Subwoofer amp
    Outlaw ICBM - crossover
    Beringher BFD - sub eq

    Where is the remote? Where is the $%#$% remote!

    "I've always been mad, I know I've been mad, like the most of us have...very hard to explain why you're mad, even if you're not mad..."
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  • treitz3
    treitz3 Posts: 19,029
    edited September 2008
    Ah, that would definitely do it. ;)
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • wingnut4772
    wingnut4772 Posts: 7,519
    edited September 2008
    hoosier21 wrote: »
    do you have cabel TV? Is it connected to this system?

    Yes satelite but I unplugged it already and it's still there. I also took the ground prong off my amp and it helped somewhat but it's still there.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
    · Share on FacebookShare on Twitter
  • wingnut4772
    wingnut4772 Posts: 7,519
    edited September 2008
    treitz3 wrote: »
    Darla, you have to get rid of the ground pin on one or [possibly] all of your PC's that are plugged into the wall. If you can't do that, get a cheater plug. Are your IC's parallel with any of your PC's?

    Probably. I haven't donay any cable management yet as I am still configuring..etc..
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
    · Share on FacebookShare on Twitter
  • steveinaz
    steveinaz Posts: 19,538
    edited September 2008
    Is there any flourescent fixtures/refridgerators, etc on the same circuit? This would include CFL bulbs? A buzz is usually an appliance/fixture, or signal/AC lines too close. Hum is related to different potentials on ground between 2 or more components.

    Sometimes 2 pronged ac equipment doesn't play well with 3 pronged equipment. I found this out with my Panasonic BluRay player, even though all equipment was plugged into the same power supply.

    The easiest way to isolate a ground loop hum is to pluyg equipment in 1 at a time and listen for the introduction of hum. Start with amp-speakers...listen, then add 1 piece at a time. Once you find the culprit, there's a number of different approaches. Lifting the gorund on the power amp (not recommended), turning the 2-prong plug 180 degrees if not polarized, etc, etc.
    Source: Bluesound Node 2i - Preamp/DAC: Benchmark DAC2 DX - Amp: Parasound Halo A21 - Speakers: MartinLogan Motion 60XTi - Shop Rig: Yamaha A-S501 Integrated - Shop Spkrs: Elac Debut 2.0 B5.2
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  • wingnut4772
    wingnut4772 Posts: 7,519
    edited September 2008
    Cheater plugs did the trick. It's super quiet now. Thanks guys.:)
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
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  • mmadden28
    mmadden28 Posts: 4,283
    edited September 2008
    wingnut4772 wrote: »
    Cheater plugs did the trick. It's super quiet now. Thanks guys.:)

    What specific piece of equipment was it that caused the most annoyance?(that resolved with a cheater plug)
    ____________________
    This post is a natural product. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects.

    HT:Onkyo 805, Emotiva XPA-5, Mitsu 52" 1080p DLP / polkaudio RTi12, CSIa6, FXi3, uPro4K
    2-chnl : Pio DV-46AV (SACD), Dodd ELP, Emotiva XPA-1s, XPA-2, Odyssey Khartago, LSi9, SDA-SRS 2 :cool:, SB Duet, MSB & Monarchy DACs, Yamaha PX3 TT, SAE Tuner...
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  • wingnut4772
    wingnut4772 Posts: 7,519
    edited September 2008
    I just hit all the main suspects. I didn't go 1x 1 yet. I will narrow it down later. Mainly the PS3, receiver, amp and satellite box.
    Sharp Elite 70
    Anthem D2V 3D
    Parasound 5250
    Parasound HCA 1000 A
    Parasound HCA 1000
    Oppo BDP 95
    Von Schweikert VR4 Jr R/L Fronts
    Von Schweikert LCR 4 Center
    Totem Mask Surrounds X4
    Hsu ULS-15 Quad Drive Subwoofers
    Sony PS3
    Squeezebox Touch

    Polk Atrium 7s on the patio just to keep my foot in the door.
    · Share on FacebookShare on Twitter
  • okiepolkie
    okiepolkie Posts: 2,258
    edited September 2008
    Here is one of the best way to get rid of ground loops, and still keep the safety of the ground pins:
    http://www.jensen-transformers.com/
    Tschüss
    Zach
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