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    JBL DSC 260 vs. DSC 260A

    Bit of an ancient history question, but does anyone know what, if any, differences there are between the DSC 260 and DSC 260A speaker processors?

    And are they by chance just rebranded dbx...
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    Much appreciated! Many thanks!

    Much appreciated! Many thanks!
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    I believe it was 2" thick panels. (Augspurger had...

    I believe it was 2" thick panels. (Augspurger had recommended 2" of the regular pink fibreglass, but on all interior surfaces except the front baffle.)
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    JBL DMS-1 cabinet info?

    I'd be most grateful if any owner of the JBL DMS-1 monitor could help me out with some information about the original factory cabinet.

    I'm working on a DIY version of the DMS-1.

    I've got the...
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    A very tardy response to this thread, but...

    A very tardy response to this thread, but something that's been on my mind lately.

    The crossover, passive or active, is very close in importance to the speaker drive units themselves.

    And, once...
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    I used that dense 703 compressed fibreglass in a...

    I used that dense 703 compressed fibreglass in a pair of Augspurger monitors—contrary to what George Augspurger recommended. My (naive) thought was that the more completely the damping material...
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    Hi Ian, thanks for your comments. If by "time...

    Hi Ian, thanks for your comments.

    If by "time correction," you mean delay, there isn't any applied, according to JBL's "Settings" document for the DMS-1, concerning which see the earlier...
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    I've (finally!) assembled components for the...

    I've (finally!) assembled components for the DMS-1 (2450SL, 2332, 1400ND reconed from 1400Pro), and would appreciate learning more about the "Classic D'Appolito BW3" Butterworth crossover.

    I'm...
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    Earl K, Sad news, to be sure, but thanks for...

    Earl K,

    Sad news, to be sure, but thanks for this vital bit of technical information!
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    JBL 2217HPL reconable as LE14H-4?

    I noticed quite a few JBL 2217HPL on eBay lately with very modest asking prices.

    Some comments I've read on these forums, while not definitive statements, do suggest it may be possible to recone...
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    Pos's observation got me looking at more spec...

    Pos's observation got me looking at more spec sheets. I couldn't help noticing that the T/S parameters of the LE14H-4—or at least some of the most important ones—are near-identical to the 1400Nd,...
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    Gentlemen, Thank you all for your observations...

    Gentlemen, Thank you all for your observations and suggestions! Much appreciated. . .I now have a much better sense of the challenge I have taken on!

    I had originally thought to use the 2450SL...
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    MTM with jBL LE14H-4?

    I was all ready to start working out a cabinet to house two LE14H-4 drivers and a 2450SL/2332 in an MTM configuration. My ancient version of BassBox (5.1), which I am just learning to use, suggests...
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    bolt circle for JBL 2332 horn?

    Does anyone know whether the JBL 2332 horn has holes for compression drivers with 4" bolt circles?
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    DMS-1 EQ settings

    I was glad to find, in an old thread on this forum, a hyperlink to JBL's recommended crossover and EQ settings for the DMS-1 monitor.

    http://www.jblpro.com/pages/tunings/dms1.pdf

    For the EQ of...
  16. Frankenstein Speaker Project: JBL 4367 LF with DMS-1 HF

    Early days yet, with much crossover/EQ work to be done once I start up the REW and begin measuring, but using the old JBL M553 active analogue crossover, they're already quite listenable.

    . . .So...
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    Also sorry for posting off-topic, but I would be...

    Also sorry for posting off-topic, but I would be grateful for any information available about modding the JBL M553 crossover.

    I have a stock one and have always suspected that some parts upgrades...
  18. Cut-off frequency for JBL STX825 horn (p/n 5006815)?

    I've been experimenting, using the JBL D2430K driver with the STX825 horn and am beginning to wonder if a 1000 Hz crossover point is too low—especially if I change the slope from 24 dB/oct....
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    ivica, Thanks for the suggestion. However, I'm...

    ivica, Thanks for the suggestion. However, I'm not using the 2450SL with the STX825 horn; that's for the D2430K. With the 2450SL, I'm using the 2332, which I understand is the same horn and driver...
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    So far, the 2450SL on the 2332 horn gives a more...

    So far, the 2450SL on the 2332 horn gives a more spacious, relaxed presentation (there's some precise engineering terms!) than the D2430K on the STX825 horn. Both crossed over @ 1 kHz with a 24...
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    Will attempt to compare the 2450SL + 2332 horn...

    Will attempt to compare the 2450SL + 2332 horn with the D2430K + STX (#5006812) horn with dual JBL 2235H per channel in 8 cu.ft. boxes tuned to around 30 Hz. Which plan leads to more questions. . . ...
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    HI again, Earl. I don't have any response curves...

    HI again, Earl. I don't have any response curves for the D2430K drivers. I don't think they were tested to that extent. Just got a verbal report that they were functioning normally. Though I also got...
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    Earl, Yes, indeed, I bought them used on eBay,...

    Earl, Yes, indeed, I bought them used on eBay, and that, I guess, serves me right! Yet the fellow who's been repairing and reconing speakers (JBLs and TADs) for me for many years can find no...
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    Thank you, gentlemen, for the additional comments...

    Thank you, gentlemen, for the additional comments and information. As it happens, I do have a pair of the STX825 horns. I got them for the D2430K drivers I sourced a couple of years back....
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    Good to know! Thanks for pointing that out. Shall...

    Good to know! Thanks for pointing that out. Shall forge ahead. . .
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