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Thread: Subwoofer pops

  1. #1

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    Default Subwoofer pops

    Hello,

    For some reason my subwoofer makes a loud popping sound when I turn up the volume, while watching a blue-ray movie and there is an explosion, or gun fight scene.

    Is this what people call clipping? Did I blow out my subwoofer?

    I usually do not push my system very loud. I never notice it while watching from my directv (Dolby Digital).

    Any ideas? When I listen to CDs on the same blu-ray player and crank it up, the subwoofer sounds great, no popping.

    Thanks guys,

    Lonwa
    “Sometimes good command decisions get compromised by bad emotional responses."

    Pioneer Elite PRO-1120HD
    Denon AVR-2808CI
    Parasound HCA-1205A
    Panasonic DMP-BD30
    DirecTV H20
    Belkin PURE AV
    Polk RTi38
    Polk CSi40
    Polk TC615i
    Polk TC60i
    PSW450

  2. #2
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    Default

    Is the popping sound when the sub turns on?

  3. #3

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    Default

    no, only during loud explosions or gun fights... power on its fine.

    It is not always consistent either.
    “Sometimes good command decisions get compromised by bad emotional responses."

    Pioneer Elite PRO-1120HD
    Denon AVR-2808CI
    Parasound HCA-1205A
    Panasonic DMP-BD30
    DirecTV H20
    Belkin PURE AV
    Polk RTi38
    Polk CSi40
    Polk TC615i
    Polk TC60i
    PSW450

  4. #4

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    Default

    possibly the sub bottoming out? Do you have a subsonic filter set? What sub are you using?
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)

  5. #5
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    I guess it could be some sort of overload/clipping. Would you be happy using the sub at a volume that is below the "popping" level? Whatever the noise it, it can't be good for your sub.

  6. #6

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    Default

    I have the Polk PSW450
    “Sometimes good command decisions get compromised by bad emotional responses."

    Pioneer Elite PRO-1120HD
    Denon AVR-2808CI
    Parasound HCA-1205A
    Panasonic DMP-BD30
    DirecTV H20
    Belkin PURE AV
    Polk RTi38
    Polk CSi40
    Polk TC615i
    Polk TC60i
    PSW450

  7. #7

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    Default

    i don't believe I have a subsonic filter set. To be honest I don't know what that is.

    Sorry
    “Sometimes good command decisions get compromised by bad emotional responses."

    Pioneer Elite PRO-1120HD
    Denon AVR-2808CI
    Parasound HCA-1205A
    Panasonic DMP-BD30
    DirecTV H20
    Belkin PURE AV
    Polk RTi38
    Polk CSi40
    Polk TC615i
    Polk TC60i
    PSW450

  8. #8

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    Default

    That's the sub bottoming out. Back off on the gain a little - it's not good for your sub.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

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