Question No sound out of my subwoofer (Tannoy SFX)?

Discussion in 'Subwoofers' started by PhilsterUK, Dec 28, 2016.

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  1. PhilsterUK

    PhilsterUK
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    Hi there, I have a subwoofer issue i wanted to run by folk who know about these sorts of things!

    I have a Tannoy SFX subwoofer attached to a Pioneer VSX-529 receiver.

    All has been good but I recently noticed that there was no sound coming from the subwoofer.

    It has power so i can rule that out.

    It was set to auto but the red light changes to green when there is sound coming from the Pioneer.

    If I do a test tone from the Pioneer I hear no sound.

    I plugged the microphone in and have run the auto speaker setup from the Pioneer and no sound comes from the sub. I have also fiddled with making sure the front and rear speaker are set to Small etc to no avail.

    Is there any other test I can do to see if it is working? Is there anything else I am missing or is it an ex-subwoofer?!

    Many thanks,



    Phil
     
  2. andym81

    andym81
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    Have you checked in the pioneers settings to make sure it's detecting the sub
     
  3. Deleted member 598831

    Deleted member 598831
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    Try setting it to "Always on", rather than auto. Do you hear a click when changing to always on?
     
  4. PhilsterUK

    PhilsterUK
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    Hi guys, thanks for your speedy response.

    I have set it to Always On and there is no sound then either no do I hear any click. In truth there appears to be no noise what so ever coming from the sub!

    I am not sure how I'd check to see if it detecting the sub but certainly when running the auto setup via the microphone it isnt picked up and no sound comes from it.

    I have also tried a new sub cable by the way.
     
  5. Publicnme2273

    Publicnme2273
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    Have you tried changing the subwoofer cable?
     
  6. PhilsterUK

    PhilsterUK
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    Yep, bought a new one and tried it today with the same results (or lack of!)
     
  7. adam-burnley

    adam-burnley
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    Have you checked the phase, crossover and level settings on the sub? Crank up the latter two to max whilst running the test to see if there is any difference. Also check the cable is connected to the white phono socket on the sub, not the red one.
     
  8. PhilsterUK

    PhilsterUK
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    Hi Adam, yes I have played with the phase and crossover settings on the sub and made sure the cable is connected properly.

    As the light on the sub changes from red to green I assume this suggests it is getting something from the Pioneer that doesn't then come out of the sub.

    It isn't looking good is it?!
     
  9. shotokan101

    shotokan101
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    Could just be a dodgy connection at the sub if you're lucky...
     
  10. PhilsterUK

    PhilsterUK
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    Think it may be time to replace it. It's had a good innings :)
     
  11. John7

    John7
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    Pull the LFE cable from the receiver and put your finger on the centre pin (may want to turn the subwoofer gain down a bit first)! You should hear a distinct 50Hz hum from the sub - if not, increase the gain slowly. If nothing comes from the sub, looks like the sub amp is toast (could be as simple as an internal fuse though).
     
  12. PhilsterUK

    PhilsterUK
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    Cheers John, but not a peep from it (aside from a barely perceptible 'electrical noise' that is always present when they are plugged in and switched on - forgive my non-expert, layman's terminology!).
    I'm not sure I'd really know where to start with trying to diagnose an internal fault (and then trying to fix it!).

    The other speakers are OK so I shall see if I can source another sub to replace it.
     

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