Question about rumble filters

Discussion in 'Home Theater Projects' started by RodN, Jun 22, 2004.

  1. RodN

    RodN Stunt Coordinator

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    Hi,

    I'm fairly new to this game and have searched and not been able to find a definitive answer. Do you need a rumble filter for a sealed sub?

    Some have suggested you don't.

    I ask this as I am considering just using a PA amp for driving my 110L sealed temptest project but am a little concerned that there is no rumble filter included in these amps.
     
  2. RodN

    RodN Stunt Coordinator

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    Hi,

    I'm fairly new to this game and have searched and not been able to find a definitive answer. Do you need a rumble filter for a sealed sub?

    Some have suggested you don't.

    I ask this as I am considering just using a PA amp for driving my 110L sealed temptest project but am a little concerned that there is no rumble filter included in these amps.
     
  3. JakubH

    JakubH Stunt Coordinator

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    depends on whether your goal is lowest possible response or higher output. But it is not as critical as with a vented sub, because the driver is not becoming 'unloaded' below the tuning frequency of the vent. However you will have better power handling & max output if you filter out say, everything below 20 hz.
     
  4. JakubH

    JakubH Stunt Coordinator

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    depends on whether your goal is lowest possible response or higher output. But it is not as critical as with a vented sub, because the driver is not becoming 'unloaded' below the tuning frequency of the vent. However you will have better power handling & max output if you filter out say, everything below 20 hz.
     
  5. Jon Carlson

    Jon Carlson Extra

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    I've been wondering the same thing after reading about the bass in some of the recent DVDs like the new Matrix. I have a ported AV-12 run off a JBL pro amp. I haven't noticed it bottoming out, but wonder if something like a Harrison Labs 20hz high-pass FMOD from partsexpress would be prudent since they're only about $25? Or would this not be worth the effort.

    Any opinions appreciated.
     
  6. AndersP

    AndersP Stunt Coordinator

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    Beside vinyl and maybe cassettetapes there is no need for a rumble filter when running a closed sub. I suppose the matrix guys put the sound there for a reason.
     

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