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  1. I believe there was a period where JBL was using...

    I believe there was a period where JBL was using the 2226 (definitely the 2225) in the 4550BKA and 4560BKA cabinets in their 4672 and 4674 systems. The 2227 was a relatively short-lived driver but...
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    You're welcomed to experiment as you wish. ...

    You're welcomed to experiment as you wish. Personally, I wouldn't bother with the 2035s. They are the low-powered 2226 and built for $$$ reduction only. They use a 3" V.C. instead of a 4"

    If...
  3. Thread: Sub18

    by sguttag
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    Heads up...the price of the 2269H as a service...

    Heads up...the price of the 2269H as a service part was recently reduced in price (significantly) so anyone thinking of doing a SUB18 clone or their own creation(s), it is probably worth getting a...
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    Twisted cable absolutely has significantly higher...

    Twisted cable absolutely has significantly higher noise immunity than parallel or worse, non-bonded cable (e.g. plain THHN wire in a conduit). It is so easy to experiment and prove it to oneself. ...
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    I am unfamiliar with the Hypex DLCP. Q quick...

    I am unfamiliar with the Hypex DLCP. Q quick look at the website indicates that it allows for IIR filtering but no mention of FIR filtering. So my belief is that it maybe is sufficient but there...
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    Very nice! I wouldn't put grills on those they...

    Very nice! I wouldn't put grills on those they look so good!

    I think I see a trendy rear access hatch for the D2 as well.

    Who's ports did you use?
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    I still use the EVI-28 in cinema applications...

    I still use the EVI-28 in cinema applications (for surrounds) when I have very wide (or perhaps very long) cinemas or balconies to avoid deafening people near the speaker while getting good coverage...
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    When did the JBL 4660 come out compared to...

    When did the JBL 4660 come out compared to Altec's VIR and VIT horns? The Altec Vari-Intense line still lives on in the Bosch/EV EVI-28, EVI-12 and EVI-15. We still use the EVI-28 in some cinemas...
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    Though I don't think they would make this change,...

    Though I don't think they would make this change, my D2 drivers are genuine M2 versions (gold label with the correct part number). Is there any possibility that they would label the M2 version...
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    Activity here is fine...remember, there is a LOT...

    Activity here is fine...remember, there is a LOT of prior discussions that are still relevant and don't need to just be repeated so much as looked up.

    A lot of what I've seen on FB is more...
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    Yep, you us an active crossover before the...

    Yep, you us an active crossover before the amplifiers (two stereo, one 4-channel, 4 monos...whatever works for you). You can DYI the crossover if you want (a simple L-R 24 isn't too hard to build...
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    I brought it up because you seemed interested in...

    I brought it up because you seemed interested in efficiency. The 515G was designed and built to be the most efficient Altec driver. Check it out in the various cabinets (GPA still produces this...
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    What is your need for the extra efficiency? That...

    What is your need for the extra efficiency? That isn't necessarily the key to good sound. The 515-8G is a more efficient driver than the others but it at the cost of cone mass (take a feel of the...
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    As reported in another thread... For the M2,...

    As reported in another thread...

    For the M2, the HF driver (D2) is wired IN-PHASE from the input cup to driver via the network.
  15. I checked today using a genuine D2 for M2 driver...

    I checked today using a genuine D2 for M2 driver and the factory "network" that comes from JBL pre-terminated all of the way to the input cup.

    ...and the winner is...

    For the M2, the HF driver...
  16. Thread: Sub18

    by sguttag
    Replies
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    24,979

    I don't believe I've ever seen SUB18 tunings but...

    I don't believe I've ever seen SUB18 tunings but if they exist they are going to be pretty basic (e.g. HPF). I suspect room nodes are going to be the biggest contributor to it. JBL does claim that...
  17. My clones use the factory "Crossover" and it...

    My clones use the factory "Crossover" and it comes pre-terminated with the HF cable with push-on connectors that are polarized (.250" and .187") so that one puts them on the right terminal. They are...
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    With respect to driver polarity, I never...

    With respect to driver polarity, I never considered it. On mine, I have the genuine "crossover" board.

    Have you tried reversing polarity and looking at the frequency response about 700Hz?
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    The 2446 (or 2450) are a good match to the 2360...

    The 2446 (or 2450) are a good match to the 2360 horn. The response is smooth and very predictable. I've only used or worked with about 500 or so of them as they were very popular in movie theatres...
  20. Thread: Le14h

    by sguttag
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    I'm with the group on this one. The LE14H-3 (or...

    I'm with the group on this one. The LE14H-3 (or most any of its variants) has always sounded better to me. Cleaner. I've never been a fan of the 2235. The 2235 always felt like such a kludge with...
  21. Thread: 4641 vs 4645c

    by sguttag
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    Is there something the 2242 isn't doing for you?...

    Is there something the 2242 isn't doing for you?

    You asked about a better driver, someone responded 2269 and you say it is too expensive. I don't, personally, know of a better driver in the...
  22. Thread: Sub18

    by sguttag
    Replies
    32
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    24,979

    The 5628s are quite the fun speaker! Not too...

    The 5628s are quite the fun speaker! Not too many cinemas use them due to their cost and inefficiency (compare them to the 4642A, for instance, and you need to apply 5dB more power for equivalent...
  23. Thread: 4641 vs 4645c

    by sguttag
    Replies
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    For subwoofer use? Absolutely. The 4645c...

    For subwoofer use? Absolutely. The 4645c performs significantly better than the 4641.
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    And just how big a room are they in to get this...

    And just how big a room are they in to get this 10Hz? And what recording is really delivering in that area? My cabinets are slightly larger to get down to 18Hz.

    Mine are used with suitable EQ (I...
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    No. As I said, they are essentially SUB18...

    No. As I said, they are essentially SUB18 clones.

    This thread may provide some useful info:
    ...
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