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Thread: 2226 + 2245 optimum?

  1. #1
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    2226 + 2245 optimum?

    I have a pair of 2226s (+ mids and tweeters not relevant)
    Auditioned them with 2245 subs and it sounded better.
    Damn - now I have to buy 2245s and add them!
    Initially my idea was just to have the 2226s in the JBL recommended 5 cubic foot ported boxes and add ported 2245 cabinets.

    I now wonder - since the 2245s can easily handle up to a couple of hundred Hz whether I can now optimize the 2226s because I don't have to try to tune down to 40Hz. My first idea is maybe sealed boxes for the 2226s.
    Anyone here have any recommendation?

    TIA

  2. #2
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    Optimal size sealed box size is 1.234 cu.ft. This gives a -3db of 98hz, and the group delay is exceptional at under 3 ms. below 100hz, 1 ms. at 200hz, and almost nonexistant above that. 'Should work very well in combination with 2245's.

    John

  3. #3
    RIP 2011 Zilch's Avatar
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    Plug it in to WinISD for both options. The optimum box sizes are small....

  4. #4
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    Quote Originally Posted by Zilch
    The optimum box sizes are small....
    Hm. That could free up some space - and I could have several 2245s!

  5. #5
    arrgh5
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    Can someone explain how the "35-1,8 khz" at +/- 3db is possible with the

    http://www.jblproservice.com/pdf/Sou...ries/4745A.pdf

    (2 x 2226h) ?

    Group delay must be astronomic high.

    I had/have 4745. They may be a little bit slower than my 4715 but they
    still have enourmos punch. The sound is hmm, "juicier".

  6. #6
    Administrator Robh3606's Avatar
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    That 35 s/b a 45Hz. Take a look at a pair in 8 cubic ft. 40Hz box

    Rob
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  7. #7
    arrgh5
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    I know, -3 db at 35 hz seems unreachable. But the difference between the
    4715 (-10 db at 40 hz) and the 4745 is audible. Goes lower.

  8. #8
    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by arrgh5
    Can someone explain how the "35-1,8 khz" at +/- 3db is possible...
    Placed in the corner of a concrete bunker perhaps?

    Also the spec is +/- 3dB.... that can be loosely taken to mean -6dB at 35Hz. For this PA stuff they may use a looser set of specification guidelines.

    Widget

  9. #9
    Senior Member Fred Sanford's Avatar
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    I have a 2245H that a friend was looking to sell, if anyone's looking for one I'll peek in the box and give details on it.


    je

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