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  1. Looks to be an oscillating cylinder steam engine....

    Looks to be an oscillating cylinder steam engine. While simple in design, they are probably not the best for wow and flutter specs.


    https://youtu.be/3PkjopZxspg
  2. Steam powered no less. Nice!!!

    Steam powered no less. Nice!!!
  3. 3-D Printed Vinyl Records..., Who Will Be the First to Have These?

    Finally here!
    https://youtu.be/IjYDY0oF2Ks
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    I cross over to the Heil at ~3,500 Hz using the...

    I cross over to the Heil at ~3,500 Hz using the 2251J. I let the 2251J naturally roll off its bottom end. This is augmented by a 2241H in ~7.5 cu ft that crosses over ~225 Hz but with a very steep...
  5. Thread: L 91 lenes

    by toddalin
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    423

    Have had this happen twice. First time made a...

    Have had this happen twice. First time made a hole in the foam on one, requiring replacement (all three got new foams). Second time made some dents in the woofer cone.
  6. Thread: L 91 lenes

    by toddalin
    Replies
    7
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    423

    My L200s have the plastic/velcro. My D50SMs...

    My L200s have the plastic/velcro.

    My D50SMs had the wood/screws.
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    Just because the LE175 can be used down to 500 Hz...

    Just because the LE175 can be used down to 500 Hz in a home setting without damage, doesn't mean that it should be, nor that it will be happy doing it. Even if the driver is capable, the horn is too...
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    So, where are you going to set the crossover...

    So, where are you going to set the crossover points? The LE175 "wants" >1,200 Hz leaving a nice gap to the woofer if using the stock crossover.
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    Not that easy. The diaphragms differ in...

    Not that easy. The diaphragms differ in architecture and an 077 may touch the phase plug of the 075. When I made this change, for testing purposes, I made shims to go between the phase plugs and...
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    Sure they are out there for all to see. But to...

    Sure they are out there for all to see. But to get the specs right is another thing more easily accomplished through direct measurement of an existing piece.

    I don't think I demoed these. I only...
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    Kendrick Sound would get a pair, test them, love...

    Kendrick Sound would get a pair, test them, love them, and knock them off.
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    Most people here know I make/have them and there...

    Most people here know I make/have them and there is really not enough $$$ in them to make a go of marketing, though I do ocasionally post them on the bay as well as my Heil stands. I did send the...
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    $40 ($39.95)

    $40 ($39.95)
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    $120/pr + $8 shipping in continental US. No...

    $120/pr + $8 shipping in continental US. No other place in the world to find these as they are totally unique.
    ...
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    Very Nice! If you want to keep those cool...

    Very Nice!

    If you want to keep those cool looking 075s, and even be able to see them, while vastly improving their performance, I may still have a set of clear acrylic slant plates. You need 4"...
  16. A picture is worth 1,000 words. 2242 is a...

    A picture is worth 1,000 words. 2242 is a "subwoofer" in name only.

    2241H in green and 2242H in red from WinISD:
    ...
  17. 2241 makes a far better "subwoofer" than a 2242....

    2241 makes a far better "subwoofer" than a 2242.

    I use 8 mH/95 mfd with a 100 mfd/1.2 ohm Zobal on my 2241s. Run the simulation and you will see thats' subwoofer territory. 2242s would peak...
  18. If you want a good track to assess "slam," ...

    If you want a good track to assess "slam," listen to a high quality recording of the drum track at the opening of Billie Jean by MJ. With a bit of volume it should kick you in the chest and about...
  19. 2242's would be a mistake, as would 2240s. 2241H...

    2242's would be a mistake, as would 2240s. 2241H is the better way to go, especially if you have a big cabinet (10+ cu ft). But these will also work in a much smaller cabinet (down to 5+ cu ft). ...
  20. The 2251Js (~9.75") have punch. I attribute it...

    The 2251Js (~9.75") have punch. I attribute it to the light cone and accordion edge working with the differential drive to create a fast transient response.
  21. Maybe just one is out of phase? Got a compass???...

    Maybe just one is out of phase? Got a compass???

    I have a 2241 with a reversed polarity magnet and no matter which way I wired them (both being the same), they were always out of phase with no...
  22. Something you may want to try, just for "shits...

    Something you may want to try, just for "shits and grins" is to let this run as a 3.5 way. IOW, don't the run high pass cap on the 2123 and let it roll of naturally at it's bottom end. You can just...
  23. Vindication! Thanks. Listen to Tarkus and...

    Vindication! Thanks.

    Listen to Tarkus and you'll hear the "chiff" in the Hammond, almost continually, in the left channel.

    The problem with "high resolution" speakers is that you also hear...
  24. So, were you able to hear the distortion?

    So, were you able to hear the distortion?
  25. I believe so. I'll listen again in the near...

    I believe so. I'll listen again in the near future and get a track#/time.
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