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SVS PB12-ISDcuts out at low volumes

Discussion in 'Subwoofers' started by mariob33, Nov 28, 2004.

  1. mariob33

    mariob33
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    I have a PB12-ISD hooked up to a yamaha RXV2400 and when i turn the volume to a lower level for a period of time the sub seems to fall asleep and it then takes a heavy hitting bass kick to wake it up or if i turn the volume way up. Any comments suggestions on how to fix this?
     
  2. recruit

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    It sounds like the LFE Level is too Low and needs to be turned up alittle bit more as the SVS keeps on shutting down, or else turn the Auto Function OFF on the Sub and just leave it on all the Time!!!

    John
     
  3. Ian J

    Ian J
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    Turn the Auto function off. This feature of American subs is more trouble than it's worth but at least on SVS you have the alternative to disable it. I did and never have any problems at all
     
  4. mariob33

    mariob33
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    i will try your recommendations.. im assuming its just the switc on the back that says auto? Whats a decent level for lfe mine is set to 0 db currently
     
  5. recruit

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    That sounds about right i would just turn off the Auto function!!!

    John
     
  6. General Skanky

    General Skanky
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    Does this sub have a single input for the LFE?

    I ask as on my sub I have L and R inputs and split the LFE lead to them both. I believe it makes the sub more sensitive (?) and I have no problems at all with the Auto setting.
     
  7. recruit

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    Yes when you plug the 2 in L/R then voltage increases and so does the sensitivity and the sub wakes up quicker the only problem is that it also increases the level which I found annoying when calibrateing.

    John
     
  8. General Skanky

    General Skanky
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    I didn't know that.

    Does it throw the calibration off that much?
     
  9. recruit

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    I found that it did by about 3-4db!

    I think it's best just to leave the Auto function off

    John
     
  10. General Skanky

    General Skanky
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    I wish you hadn't said that. Means I'll have to go and recheck it all again. :)
     
  11. Nimby

    Nimby
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    You only have to calibrate once.

    You take the increased output into account while you're calibrating.

    The increased output simply means you turn down the sub slightly to match.

    BTW: Twinning the inputs doesn't affect peak output. So the sub doesn't suddenly become an Ultra thanks to a couple of quid's worth of cables.

    Nimby
     
  12. Andreas

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    Why don't you try bumping up the gain on the reciever for the subwoofer channel, at the same time lowering the gain on the subwoofer amp. That would give the sub a higher signal to keep it awake durring the quiet times.

    Andreas
     

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