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  1. #1

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    Default Subwoofer problem

    Hi,

    After calibrating my HT set up using Avia II and using my system for a while now there is nothing coming out of the Sub.

    Light in the Sub in on. Cables are fine. Set up in the A/V is fine, including crossover setting at 80 Hz and channel volume. Volume in the Sub is ok. The Sub is less that a year old. The only thing unusual was the wife setting it on one of its side while trying some re-decoration.

    I think I have tried everything from my end. Can it be the A/V not properly sending a signal?
    ----
    Fronts: 2xLSi9
    Center: 1x LSi9
    Rear: 1xLSi7 + 1xLSi9
    A/V: NAD T753
    Sub: Velodyne DEQ-12R
    BlueJean Cables

  2. #2

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    Default

    Quote Originally Posted by Babulas View Post
    Hi,

    After calibrating my HT set up using Avia II and using my system for a while now there is nothing coming out of the Sub.

    Light in the Sub in on. Cables are fine. Set up in the A/V is fine, including crossover setting at 80 Hz and channel volume. Volume in the Sub is ok. The Sub is less that a year old. The only thing unusual was the wife setting it on one of its side while trying some re-decoration.

    I think I have tried everything from my end. Can it be the A/V not properly sending a signal?
    Easiest place to start (if your AVR has pre-outs) is to turn the crossover on the sub all the way up, set your front speakers to large (in the AVR) and plug the subwoofer into the right or left speaker RCA jack.

    If you get sound, its a setup issue. (probably in the AVR) If not, it may be an amp issue in the sub.

    Michael

    (edit - before you do anything - I assume by nothing you mean - no signal at all, not just quiet. If you put on a bass heavy scene does your woofer move at all? Can you feel it move?)
    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)

  3. #3

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    Default

    Try something in 5.1 with alot of LFE. Some AVRs have settings so you get no sub in 2 channel or Stereo
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  4. #4

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    Default

    McLoki,

    No sound means nothing at all. A good example is the beginning of Toy Story II. You can feel the windows rattling. Now you don;t feel anything.

    I'll try what you suggest. I imagine you mean the left or right RCA located in the Sub.
    ----
    Fronts: 2xLSi9
    Center: 1x LSi9
    Rear: 1xLSi7 + 1xLSi9
    A/V: NAD T753
    Sub: Velodyne DEQ-12R
    BlueJean Cables

  5. #5

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    Default

    If I understand it, since laying the sub on its side it has not worked? Maybe the magnet shifted or a solder broke on PCB.

    DO you have a spare sub laying around you could try or borrow?

    SOmething changed to make it stop working, sounds like laying it on its side is to problem.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  6. #6

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    Default

    Quote Originally Posted by Babulas View Post
    McLoki,

    No sound means nothing at all. A good example is the beginning of Toy Story II. You can feel the windows rattling. Now you don;t feel anything.

    I'll try what you suggest. I imagine you mean the left or right RCA located in the Sub.
    Nope - right left output on the AVR. (instead of RCA or sub out) Basically I am trying to make sure the sub is getting a signal to reproduce.
    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)

  7. #7

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    Default

    Problem fixed.

    I turn off the master Power on/off switch at the back of the subwoofer and used its microphone to recalibrate and things are back to normal. I did this after trying some of the suggestion above. So it was not the A/V not sending a signal. It was the subwoofer that for some reason wasn't processing anything. Thanks anyways.
    ----
    Fronts: 2xLSi9
    Center: 1x LSi9
    Rear: 1xLSi7 + 1xLSi9
    A/V: NAD T753
    Sub: Velodyne DEQ-12R
    BlueJean Cables

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