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Thread: 2453h-sl

  1. #1
    Senior Member pos's Avatar
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    2453h-sl

    A new compression driver is in town:

    http://www.jblpro.com/catalog/genera...?PId=422&MId=2

    1.5" exit / 4" aquaplased Ti diaphragm with neo magnet like the 2452H-SL

  2. #2
    Administrator Robh3606's Avatar
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    It's not in the posted driver list yet. I wonder what the cost is and if it's the same as a 2452-SL

    Rob
    "I could be arguing in my spare time"

  3. #3
    RE: Member when? subwoof's Avatar
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    ribbed

    most likely a diaphragm change to the ribbed, coated version.

    this was done before when the 2450SL became the 2450SL-a with the exact same diaphragms ( sans the screw-on terminal posts )

    sub

  4. #4
    Senior Member Rudy Kleimann's Avatar
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    2452H/H-SL (and 2453H-SL) vs. 2450SL/SL-A

    Quote Originally Posted by subwoof View Post
    most likely a diaphragm change to the ribbed, coated version.

    this was done before when the 2450SL became the 2450SL-a with the exact same diaphragms ( sans the screw-on terminal posts )

    sub
    The 2452H-SL is shorter and lighter than the 2451, particularly the path from diaphragm to mounting flange is shorter. The phase plug is vitrually against the bug screen on the 2452H-SL's I have here. Is the 2452/53 phase plug the same "coherent Wave" phase plug that started with the 2446/47 and continued through the 2450/50SL/SL-A/51?

    RE: diaphragms, if I understand you:

    a 2450SL has a smooth, coated diaphragm (as do the 2452H-SL - seen by my own eyes)
    a 2450SL-A has a ribbed, coated diaphragm (and, in turn, the 2453H-SL does if your assumption is correct)

    The 2450SL/SL-A drivers are otherwise identical? Basically a 2451 motor with the smaller 3.25" 4-bolt pattern like all the new 3" & 4" drivers instead of the 4.5" circle of the 2447/2451? The 2451 and 2450H-SL motors have the same overal dimensions

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