LFE or NOT

Discussion in 'Archived Threads 2001-2004' started by Kenny Booth, Mar 26, 2002.

  1. Kenny Booth

    Kenny Booth Stunt Coordinator

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    I have read several articles conserning the LFE on sub-woofers. Many articles suggest turning the LFE off or by-passing it to keep from going thru two crossovers.

    My sub has a LFE switch on back and it sounds much better with the LFE switch off. By doing that I can not control the gain thru the LFE control in my AVR.

    I should be getting an SVS sub before long and to tell the truth I don't know which way to go with this LFE thing.

    Can someone explain the difference between running the sub with LFE on or with LFE off?

    thanks
     
  2. RobP

    RobP Stunt Coordinator

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  3. Kenny Booth

    Kenny Booth Stunt Coordinator

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    But I don't bypass the crossover on my sub. With the LFE set to off the sub crossover works and sounds much better.

    With the LFE on the sub crossover seems to do nothing.

    Maybe I'm cutting the .1 channel entirely and just getting signal from the other speakers--all set to small.

    I don't know
     
  4. Steve_Ma

    Steve_Ma Second Unit

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  5. Marcelo T

    Marcelo T Stunt Coordinator

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    if you set all speakers to small, you´ll get LFE too.

    In my receiver, the options are, yes, no and plus.

    On spk set to large, yes mean lfe only

    On spk set to small, yes means lfe+all bass lower than 80hz

    On spk set to large, plusmeans lfe+all bass lower than 80hz

    Read the manual of the receiver again.
     
  6. Kenny Booth

    Kenny Booth Stunt Coordinator

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    The sub is connected thru line level (sub pre out)

    All speakers set to small. Sub setting on AVR is set to on.(Sub set to off--sub doesn't work period) Denon 2801 AVR.---Sub JBL PB10

    On the AVR the main gain controls for all 5 channels + sub do work--but the LFE gain control does not work. Now how the hell does the AVR know that the LFE switch on the sub is set to off. I can only assume that the sub is not accepting any LFE signals from the AVR. Does that mean that I am cutting out the .1 channel entirely and the sub is only receiving signals from the speaker by-pass. If so then why does it sound better.

    Can you tell I'm confused?
     
  7. Steve_Ma

    Steve_Ma Second Unit

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  8. RobP

    RobP Stunt Coordinator

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  9. Marcelo T

    Marcelo T Stunt Coordinator

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    The lfe switch on the pb10 is a crossover defeat switch, nothing more. Leave it on lfe, put all speakers to small and sub to yes and you´re all set.
     

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