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Thread: TAD 2404 Build

  1. #61
    Senior Member pos's Avatar
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    Quote Originally Posted by richluvsound View Post
    The system has changed a lot since you were here Pos .

    I have the 1500AL , new passive networks . Thats why I'm thinking a new speaker .... I would cost the about the same .

    Active is not a cheap up-grade either ....

    But Im open to ideas ?

    Rich
    Glad to hear you upgraded the woofer! I suppose the improvement is substantial over the ME150H!
    Active is not necessarily expensive with DSP plate amps (hypex and the like, with an autoformer to lower hiss and noises on the compression), and the H9800+2435 would sure benefit from some specific EQ.

    Looking at the S9800 spinorama the axis/window/power curves are very well matched, and even a simple global stereo (digital and parametric) EQ would probably already bring good results.
    Here is an experiment I made a few years ago, based on the EDS curves (with unknown passive adjustment settings), showing the effect a proper EQ of the listening window curve (à la M2) would have on the spinorama.

    without EQ (simple transcription of the EDS spinorama) :
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    with EQ, targetting a flat listening window curve:
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    EQ settings, 12 constant Q parametric EQ points:
    Name:  EQ.PNG
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  2. #62
    Senior Member pos's Avatar
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    Quote Originally Posted by dn92 View Post
    TH-4003 seems specific to TD-4003, not sure a rapid flare 1.5" would go directly into it. pos what do you think about as you have experience with TD-4003 ?
    But TAD TH-4371 made for TAD PA loudspeakers seems to have a similar design, asymetric in vertical, providing a response that doesn't require EQ, and was made for rapid flare version of TD-4002 (a.k.a TD-4002Z, the same but witout 1.5 to 2" adaptor).
    The TD4003/TH4003 is really meant to work together, as the TD4003 throat and TH4003 horn have the same specific expansion.
    This relatively slow expansion in the throat also dictates a somewhat narrow final directivity pattern, whereas throat-less drivers like the JBL 1.5" or TD4002Z are pretty much open to any scenario.

  3. #63
    Senior Member richluvsound's Avatar
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    Hi Pos ,


    I cant see dumping £1500 worth of 3 year old passive networks to keep the 2435 .... I could if it was the 2450 BE ...
    I don't want step sideways .

    Richard

  4. #64
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    TN-2 LF (Blue) vs TN-2 LF simulated (Yellow, differences vs measured remains in impedance measurement and components modeling precision) vs DN-2404 LF simulated (Green, using one TL-1601a in 2402 enclosure impedance data as I don't have TL-1601c in 2404 enclosure impedance data), voltage drive.

    Name:  TN-2_LF_vs_DN-2404_LF.jpg
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    To do a correct simulation of 2404 I need real measurements of the drivers without their crossovers, first the impedance data. If someone can provide this it could be great.

  5. #65
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    Quote Originally Posted by richluvsound View Post
    The system has changed a lot since you were here Pos .

    I have the 1500AL , new passive networks . Thats why I'm thinking a new speaker .... I would cost the about the same .

    Active is not a cheap up-grade either ....

    But Im open to ideas ?

    Rich
    Hi Rich,

    Be guided by your ears and your instincts


    If you like the 4003/Tad horn cool

    It’s all about the drivers to start with.

    But a marriage requires some effort (trust me) so you can live with it over time

    The technical side is really just access to the right people.

    Leave the technical stuff to the boffins

    I would talk to Guido about the 18Sound 1.5 inch Be driver?”

    There is a man in Hungry making solid wood 4003 horns

    You could evaluate your component options with support in Europe

    Then assemble in London

    A bit like a Jules Verne novel

    I might be over in the UK later next year with my wife

  6. #66
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    Athos audio is the hungarian manufacturer of these TH-4003 "clones". The external shape looks different and is the metal adaptor provided ? Anyway the response has to be measured for check. I know no one who ordered a TH-4003 there but an Arai 290 and another one a TH-4001 clone.
    Athos Audio is also danveyron on eBay.

  7. #67
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    Thanks Ian, I learned a new English term in my vocabulary that I didn't learned at school: boffin

  8. #68
    Senior Member pos's Avatar
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    Quote Originally Posted by dn92 View Post
    Athos audio is the hungarian manufacturer of these TH-4003 "clones". The external shape looks different and is the metal adaptor provided ? Anyway the response has to be measured for check. I know no one who ordered a TH-4003 there but an Arai 290 and another one a TH-4001 clone.
    Athos Audio is also danveyron on eBay.
    I know one person how ordered TH4003 clones from him, but was somewhat disappointed by the interior shape near the throat.
    The only "good" clones that I know are Widget's ones (out of production unfortunately), and JMF Audio ones (probably only available through Roland Delacroix).

  9. #69
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    All it needs is to pitch up and pay for a new mould orclicense the CNC file to cut some wood horns

    A bit of commercial Acumen would tell you if sold 50 or 100 licenses for $1000 you could put your feet up for a while

  10. #70
    Senior Member richluvsound's Avatar
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    Horn ...

    Quote Originally Posted by Ian Mackenzie View Post
    All it needs is to pitch up and pay for a new mould orclicense the CNC file to cut some wood horns

    A bit of commercial Acumen would tell you if sold 50 or 100 licenses for $1000 you could put your feet up for a while
    Hi Ian ,

    I know a guy thats good with wood and has access to a CNC .... I have originals here and Ive worked with Widgets clones - the fit and finish was better on Widgets .

    I have access to 2450'sl cheap ... I can get a good price on truextent but only for a group buy . And , you're spot on with the support here in Europe .... no need to bother old connections .

    I really look forward to seeing you when you get here .

    Richard .

  11. #71
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    It’s something to look forward to

    Our last catch up on London with the boys was fun

    When was the last time there was a uk re union?

    I have some friends in Germany and Romania so maybe the wife can let me do my own “thing” on the way home ?

    Sometimes l speak my mind so just ignore

    Your pm box might be full

  12. #72
    Senior Member richluvsound's Avatar
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    Catch Up !

    Hi Ian ,

    it would be good to catch up . I've down sized though,but you're always welcome .

    Rich

  13. #73
    Senior Member richluvsound's Avatar
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    A Few More Photos .

    Few shots .... Just the grill badge to make . I'll use a 3D printer .
    Attached Images Attached Images    

  14. #74
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    Everything work good now
    I bought pair of new Td-4003 diaphragms and the project are now close to be finish

  15. #75
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    Congratulations!
    They look great... always even better when they sound good too!


    Widget

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