TV or other subwoofer gurus!!! Please tell me if this is wrong to do!

Discussion in 'Archived Threads 2001-2004' started by Curtis_Edwards, Mar 22, 2002.

  1. Curtis_Edwards

    Curtis_Edwards Stunt Coordinator

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    I have a Martin Logan Descent subwoofer. I initially had the setting on 2.5 for the built-in amp (volume). I was not feeling the in the chest type bass that I wanted so.........

    I decided to try something that I am hoping you guys say was the good thing to do.

    I turned my subwoofer output on my RECEIVER down more than halfway to about -12 db (the range is from -20db to 0db). I then turned up the subwoofer built-in amp to about 7 (out of 10) and the bass got deeper and the sound effects had more punch etc for movie tracks. I can feel it allot more than before.

    Is this method incorrect?

    Thanks guys.
     
  2. Dennis Heller

    Dennis Heller Second Unit

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    I believe this is what TV recommends, but I'm sure you'll get opinions from people more experienced than me.
     
  3. Curtis_Edwards

    Curtis_Edwards Stunt Coordinator

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    Thanks I thought I read that somewhere. Bump to the top for more replies.
     
  4. Rand

    Rand Supporting Actor

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    As long as your getting the results you want then how can it be incorrect? Go with it.
     
  5. Curtis_Edwards

    Curtis_Edwards Stunt Coordinator

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    I understand Rand. I just don't want to cause any potential long term problems or something.
     
  6. JoelO

    JoelO Stunt Coordinator

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    That should be OK. Many recommend to run the amp for the Sub HOT and adjust the sub level from the receiver.

    But regarding you feel the bass more now w/ the new setup, I think it's not because of the new setup, it's just you're playing the sub louder. Did you check that the sub is outputting the same dB in both configuration?

    Joel
     
  7. Vince Maskeeper

    Vince Maskeeper Producer

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    Often the filter on the sub used to reduce the amopunt of level sent to the sub amplifier is less than ideal, and by turning this up, you allow signal to flow unaltered from the receiver to the sub.

    Usually attenuation of the signal happening in the receiver is much cleaner than the passive filter in the sub, and thus you get better bass.

    This has been my recommendation for going on 5 years.

    -V
     
  8. Jack Gilvey

    Jack Gilvey Producer

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    From the measurements I've seen, the sub-out from receivers is also prone to distortion at fairly low settings. By running this output as low as possible, and opening up the volume on the sub (not really more gain, just less attenuation of the input), you avoid a potential source of distortion.
     
  9. Scott_Sylke

    Scott_Sylke Stunt Coordinator

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    Curtis,

    Just curious.....how are you liking that Descent Sub? What subs have you owned in the past and how would you compare them to the Descent? What other speakers are you running with the Descent?

    I am just trying to get an idea because I own all ML speakers and am considering the Descent. Thanks for any info!
     

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