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Klipsch Heresey help

Discussion in 'The Klipsch Korner' started by kerry67, Jun 14, 2017.

  1. Pauln

    Pauln Active Member

    Messages:
    469
    Location:
    Houston
    For most speakers the design attempt was to approach flat response without boundary reinforcement, and they may be rather boomy in a corner on the floor.
    Paul Klipsch's design approach for the Heresy was to use the corner floor reinforcement and voice the speaker with an innate very clear and clean but subdued low end, so that the combined response is a natural and very clean response.
    Part of the benefit is that more low bass is produced with less power from the amp and less cone excursion of the speaker, both of those things allowing higher levels of cleaner music.
     
  2. moray james

    moray james Super Member

    Messages:
    2,883
    Location:
    Calgary on the Bow
    PWK simply wanted a speaker that was small enough to fit under a standard windowsill and that would add centre fill to a wide spread set of Khorns. The Heresy was simple, it is the largest cabinet which will fit a 12" driver which you can build two of from a single 4x8 sheet of material. The result was a speaker that did not make much bass unless you used boundary reinforcement. Placing speakers on the floor is not ever much of a plan but it got the job done and that was what mattered. This was not some grand design. PWK was simply a very practical man. Horns being directional let you get away with wall or corner placement without messing up their band like you would with cones or domes. Having sound shoot up at you or down at you will never sound realistic ever. My H3 on 21inch stands (the speakers are very modified) make plenty of bass and they stage and image very well.
    If ever any of you wondered about the Cornwall and why it is the size that it is well that is just as easy to explain. The Cornwall cabinet is the single largest cabinet that you can build for a fifteen inch woofer that you can build from a single sheet of 4x8 material (so two sheets for a pair).
     
    darkblue94 likes this.
  3. kerry67

    kerry67 Member

    Messages:
    77
    Location:
    Phoenix Arizona
    I removed off the shelf where the turntable is but I still have on the stands. I will remove and put on the floor tonight. Some people have posted to get the tweeters at ear level, But I originally heard that they were supposed to be on the ground.
     
  4. moray james

    moray james Super Member

    Messages:
    2,883
    Location:
    Calgary on the Bow
    what really matters is the mid horn not the tweeter. If all you cared about was harmonics then the tweeter would be your horn of interest as it only reproduces from 6KHz and up. You want to center the mid horn at your seated ear level which most often is between 38 and 41 inches up off the floor depending on your seating and your height. If you find your stock speaker is a little shy on bass place it closer to the front wall and or into the front corners to obtain extra boundary reinforcement. That should take care of any bass roll off you might suffer from lifting the speakers up off the floor. You want the speakers firing directly at you parallel to the floor so remove the risers so that you don't end up with the speakers tilted up firing over your head at your listening location.
     
  5. Pauln

    Pauln Active Member

    Messages:
    469
    Location:
    Houston
    What's important is that you are doing the right thing - experimenting with placement, position, angle, etc. to find how you like them best in your particular room space.
     
  6. kerry67

    kerry67 Member

    Messages:
    77
    Location:
    Phoenix Arizona
    Yook off the stands. Now I can crank it with no feedback rumble. Sounds so much better. Will still hsve caps replaced soon though...
     

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