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Thread: 2405 UHF Clones

  1. #1
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    2405 UHF Clones

    I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

    Does anyone know something about this driver?

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    Heather [Senorita member] hjames's Avatar
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    umm, If they aren't JBLs (and they aren't) just assume they are cheap clones??

    Acoustician doesn't return any "brand info" in the first 6 pages

    http://www.google.com/search?hl=en&q...an&btnG=Search



    Quote Originally Posted by witoman View Post
    I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

    Does anyone know something about this driver?

    2ch - Oppo981, JoLida502, JBL L200+, KEF 105.4
    HT7- XDA-2, BDP93, 4b NRB, B&K 5ch amp, Vandy 3A, 2Ce, VCC1, TF600 & JBL 4641

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    Senior Member louped garouv's Avatar
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    fostex made some really nice ring radiator clones.....

    maybe these are nice too?

    hard to tell via photo IMO

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    Member KromeDome's Avatar
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    Thumbs down ...well at least the rubber magnet tires are nice

    I bought a pair of these a long time ago that were brand new and sold as "non-working". They both tested as a dead short, so I opened them up to check out why. As expected, it turned out that both were so thrown together that all four lugs from the clone diaphragms were jammed against the magnet assembly. While I had them apart, I noticed that the throat casting was not symmetrical, and that the phase plug was off center in relation to it by quite a bit. Now I have never had genuine 2405s apart, but I assume that the phase plug sits firmly in the center of a symmetrical throat.

    I tested them after fixing the shorts, got some sound, and put them away where they have been sitting now for 12-13 years. I do remember being pretty disgusted by the whole experience. For fun, I'll dig them out and take a couple of photos of the internals if I get some spare time in the next couple of days.

    Quote Originally Posted by witoman View Post
    I bought a pair of Acoustician 1205 slot UHF drivers off eBay a while back. The seller said that these were manufactured to be clones of the JBL 2405 (or 077) slot driver. There is virtually nothing on the net about Acoustician drivers, let alone the 1205.

    Does anyone know something about this driver?

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    Thanks, that would be interesting.

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    I would especially like to know is if the 2405 diaphragm kit, D16R2405, could be used in this driver.

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    Member KromeDome's Avatar
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    Here a couple of the bell...

    A couple of different angles to see the asymmetry of the casting.
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    Member KromeDome's Avatar
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    just the diaphragm

    The mylar looks black in these shots, but is actually silver.
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    Member KromeDome's Avatar
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    and the phase plug

    Not much precision evident here. "Hammertone" paint.
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  10. #10
    RIP 2010 scott fitlin's Avatar
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    Marone`A Mi!

    What crud.

    Why even try to throw good money after bad and try to fit JBL diaphragms in these?

    I must say that if money is an issue, and you must have some tweeters, why not go to www.usspeaker.com, and look at the Beyma tweeters? They are copies of JBL style tweeters, not as good as JBL, but factory made and they do work, and are reasonably priced!

    At least you would have something that works to a reasonable extent, and Beyma manufacturing is far superior to these Acoustician horrors.

    I apologize if you find my words harsh and condescending, but, someone has to tell you the truth!

    scottyj

  11. #11
    RIP 2010 scott fitlin's Avatar
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    http://www.usspeaker.com/homepage.htm

    Beyma makes a copy of the JBL slot, and they cost a little more than replacement diaphragms for JBL tweeters, but will definitely work better than these Acoustician whatever they are things.

    Still not as good as what the REAL JBL tweeters were, but.......
    scottyj

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    Now tell me what you really think

    Thanks for the advice and the great photos.

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    I think its a piece of crap.
    Vlad

  14. #14
    Heather [Senorita member] hjames's Avatar
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    Quote Originally Posted by Maron Horonzakz View Post
    I think its a piece of crap.
    Dang, Maron - I said that as the 1st reply, back on the 26th and it still hasn't registered!

    really, why buy cheep clones when the real deal is available (at least here or ebay)

    Quote Originally Posted by witoman View Post
    I would especially like to know is if the 2405 diaphragm kit, D16R2405, could be used in this driver.
    And why even imagine that you could put good JBL diaphrams in cheepo clone drivers?
    Thats Crazy-talk!!
    2ch - Oppo981, JoLida502, JBL L200+, KEF 105.4
    HT7- XDA-2, BDP93, 4b NRB, B&K 5ch amp, Vandy 3A, 2Ce, VCC1, TF600 & JBL 4641

  15. #15
    RIP 2010 scott fitlin's Avatar
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    Quote Originally Posted by witoman View Post
    Now tell me what you really think
    I "DID" tell you what I really think!

    Youre waiting for someone to come along and tell you that what you have are the ultra rare, super collectible, highly sought after Acoustician super tweeters that JBL modelled theirs after and sound superior to the JBL,s?

    I dont think you could hold your breath waiting that long!
    scottyj

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