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Thread: 69-70 Hz problem: advice requested

  1. #11
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    First, IMO - Move the listening seat forward & back a bit and note the differences.

    You will find a position where the peak is less problematic, although other peaks or dips are likely to appear.

    If you are measuring, be sure to do all measurements at ear height, so that you seeing the room-height interaction as well as possible, otherwise the measurements won't exactly tell you what is happening.

    Choose the seating position where the room interacts least in the bass - in other words, where the bass is smoothest.

    This is nearly always the most important (not to mention inexpensive) first step - definitely done before moving the speakers to fine tune.

    In fact, without first establishing this 'smoothest bass' listening position (which becomes the anchor point), moving the speakers about is much less useful.
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  2. #12
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    Quote Originally Posted by Jim Smith View Post
    First, IMO - Move the listening seat forward & back a bit and note the differences.

    You will find a position where the peak is less problematic, although other peaks or dips are likely to appear.

    If you are measuring, be sure to do all measurements at ear height, so that you seeing the room-height interaction as well as possible, otherwise the measurements won't exactly tell you what is happening.

    Choose the seating position where the room interacts least in the bass - in other words, where the bass is smoothest.

    This is nearly always the most important (not to mention inexpensive) first step - definitely done before moving the speakers to fine tune.

    In fact, without first establishing this 'smoothest bass' listening position (which becomes the anchor point), moving the speakers about is much less useful.
    How nice of you to post here, Jim! You are the very person I need now. I've just sent you an e-mail about my issue and hope to hear back from you.
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  3. #13
    Quote Originally Posted by ayreman View Post
    In my listening room I have a problem with bass at 69-70 Hz: bass is very boomy at this frequency. Is there a way to somehow mitigate this problem without affecting other frequencies which I'm quite happy with? Any advice and/or recommendations are much appreciated.
    You may want to get a HELMHOLTZ resonator tuned to that frequency. try these guys:
    http://gikacoustics.co.uk/product/gi...bass-trap-t70/
    Last edited by Loheswaran; 08-30-2017 at 04:29 AM. Reason: more info

  4. #14
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    Quote Originally Posted by Rodney Gold View Post
    You have a PC as a transport.. not using analog sources as per your sig

    If your player has a dsp parametric eq section , use it
    Programs like J river and roon have them
    Program in a dip of -6db , centred around 69hz, vary the Q from 3 to 5 in the parametric eq section

    You could also use full time and freq room correction like DIRAC or Acourate and set them only to work below 250hz or so .. so you dont mess with upper freqs and only work in the bass
    You should easily tame that beastly bass and more if you want
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