SRT Control Center issue

dpowell
dpowell Posts: 3,068
edited October 2010 in Troubleshooting
Calling all SRT owners and experts! Since moving, I have noticed a strange problem with my SRT subwoofers. With the system OFF and only the control center powered on (which is all the time) I am hearing a popping coming from the drivers in the subwoofers (this is with the internal subwoofer amps ON). It is a random pattern popping, almost like Morse Code and it will stop periodically for a few seconds and then start again. Here are the steps I've taken to troubleshoot the problem:

1. Try a different electrical circuit to power all the equipment.
RESULT: Popping continues

2. Unplug RCA cables from back of control center subwoofer INPUT (AVR to SRT Ctrl center).
RESULT: Popping continues

3. Unplug RCA cables from back of control center subwoofer OUTPUT (SRT Ctrl Center to subs)
RESULT: Popping stops.

4. Change RCA cables from back of control center subwoofer OUTPUT to known good cables.
RESULT: Popping continues with either RCA cable connected.

5. Unplug SRT Control Center
RESULT: Popping stops.

I am positive that this issue was not occuring in my last installation and I've had the equipment connected to power conditioners/surge protectors the entire time.

Help!:eek:
____________________________________________________________

polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
Post edited by dpowell on
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Comments

  • dpowell
    dpowell Posts: 3,068
    edited October 2010
    I may have posted this prematurely:redface: (even though I've spend quite a bit of time troubleshooting this already). I just used a cheater plug to lift the ground on the power cable connected to the SRT Control Center and it appears the popping has stopped. I have more research to do. I don't understand how the noise from my ground is not being resolved by the UPS. It is supposed to be conditioning power but I guess it is possible it is not dealing with ground noise.
    ____________________________________________________________

    polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
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  • dpowell
    dpowell Posts: 3,068
    edited October 2010
    !@#$% Dish DVR! Unplug the HDMI cable from the DVR to AVR and the popping continues. Unplug the DVR and it stops.
    ____________________________________________________________

    polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
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  • ESavinon
    ESavinon Posts: 3,066
    edited October 2010
    You have a ground loop.
    SRT For Life; SDA Forever!

    The SRT SEISMIC System:
    Four main satellite speakers, six powered subs, two dedicated for LFE channel, two center speakers for over/under screen placement and three Control Centers. Amaze your friends, terrorize your neighbors, seize the audio bragging rights for your state. Go ahead, buy it; you only go around once.
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  • dpowell
    dpowell Posts: 3,068
    edited October 2010
    Yeah, that's what I'm finding. Time to ground the Dish and see if that improves the situation. Running the DVR on a circuit separate from the rest of the system appears to have helped as well.
    ____________________________________________________________

    polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
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  • tonyb
    tonyb Posts: 32,962
    edited October 2010
    At least you found the culprit. Good troubleshooting skills you have there. I know in the past ground loops have driven me up a wall.
    HT SYSTEM-
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