OK... I think I found the Definitive Technology speaker drivers for $20. Dang.

Discussion in 'Archived Threads 2001-2004' started by Javier_Huerta, Dec 11, 2002.

  1. Javier_Huerta

    Javier_Huerta Supporting Actor

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  2. ThomasW

    ThomasW Cinematographer

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    They are probably similar, but maybe not the identical drivers. A company as big as Def Tech will have their drivers custom made. But PE can certainly get 'similar' units from the same manfacturer

    But you are correct about pricing. With some mfgrs retail pricing = a 900% markup over the manfacturing costs.....
     
  3. Frank Carter

    Frank Carter Screenwriter

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    Just curious, what makes you think that these are the drivers?
     
  4. Brett DiMichele

    Brett DiMichele Producer

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    I personally think that it's fun to buy a "mainstream"
    speaker and then research who the drivers were manufactured
    by.
    Most speaker companies do not produce thier own drivers
    but rather they buy in bulk from an established manufacturer
    and when buying in such bulk they can specify a set of specific
    T/S Parameters for an already existing driver and the driver
    manufacturer can alter that for the speaker builder.
    It seems to me as of lately more speaker companies are starting
    to use more easily identifyable drivers like the LSi series
    from Polk which uses the Vifa Concentric tweeter.
    I tore my AR9's apart when I got them home (I tear everything
    apart it's in my nature) and I did the research and came up
    with the manufacturer of my Mids.. Hi-Vi Research manufactures
    the Magnesium Alloy mids in my AR9's and if you buy the raw
    drivers they are in the $45.00 to $50.00 range each.. Buy in
    bulk and you may cut that price down to $20.00 per unit maybe
    even a little lower.
    The point is though, that they did use a well established
    company's product that is a good product (same as used in
    the Diva's by Swans and the Rockets)
    The tweeter on the other hand may be a proprietary design.
    I know AR used to manufacture thier own Mids and Tweets in
    house and I can't match this tweeter up to any of the popular
    offerings.
    Here's a picture of the raw tweeter.
    [​IMG]
    We know there is tons of markup in speakers. Just the fact
    that I bought my AR9's for $585.00 a pair when Crutchfield
    sells the same thing for $999.00 a pair shows just how much
    markup there is.. I would say on a massive manufacturing
    scale, my AR9's probably cost the company (not including
    tooling costs, R&D or Labor) roughly $100.00 per cabinent
    for the raw materials.
     
  5. Javier_Huerta

    Javier_Huerta Supporting Actor

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  6. ThomasW

    ThomasW Cinematographer

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    Javier

    Speaker building can be like using a cookbook. The big speaker mfgrs have lists of frames, VC's, cones, domes, surrounds, magnets, etc.

    The speaker builders can just pick and choose from the available parts. In the case of most big speaker builders they will custom order certain parts to get the performance they want/need.

    The main problem with most mid-fi speaker companies is that the cabinets are underbuilt to a fault. This not only saves on up front costs but keeps the weight down, which saves on shipping.

    If companies like Def Tech built a proper cabinet, the retail cost of the speaker would probably double.......
     
  7. Bryan Michael

    Bryan Michael Supporting Actor

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    what are the mid bass drivers for the lsi form polk? that would be a good speaker to clone i have the polk audio rt 800i and they are good but everyoune is raceing about the new lsi speakers
     
  8. ThomasW

    ThomasW Cinematographer

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    The big deal about the polk Lsi series is the Vifa XT25 tweeter. The midwoofers are nothing special just a poly cone 5-1/4"
     
  9. Brett DiMichele

    Brett DiMichele Producer

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    Javier,

    I am suprised to hear that Def Tech did not brace the
    towers. It costs very little to add 2 braces across the
    cabinents.

    I have throughly ripped my AR9's apart to see what I could
    "Tweak" to make them sound even better. AR didn't leave me
    much room to work though. The cabinents already have two
    horizontal braces that are attated to each side of the
    enclosure. They also used a good amount of polyfill which
    most speaker companies don't do, they just throw a hand full
    in and that it...

    The Crossovers impressed me also, it's nice to see heavy
    guage wire used, and foilized polypropelene audio grade
    capacitors on the boards, and they even put the wire chokes
    on the boards one flat and one on end...

    Each Midrange also has it's own enclosure which is also
    stuffed with polyfill. The only thing I think I could do
    to benefit the mids would be to line the outside of the mid
    enclosures with some V-Blok just to make sure the sub doesn't
    transfer any resonance to the mid chamber.

    For what I paid for them they are built extremely well.
     
  10. Manuel Delaflor

    Manuel Delaflor Supporting Actor

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    Javier,
    Remember I once told you about Margules gear? I think it is time for you to visit them. You will be really impressed with the quality of their cabinets and by the drivers they use. Nothing cheap or cost savings anywhere.
    Send me an email, lets go together. I take every opportunity to sit in their room and listen music for hours. [​IMG]
     
  11. Andrew Santos

    Andrew Santos Stunt Coordinator

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    i opened up my paradigm studio 20s recently because i was getting an annoying resonance at certain frequencies. it was pissing me off but i didn't want to bring them in because that would have probably cost me money.

    well first off, i was glad that the drivers themselves were pretty beefy. that was a good sign, although it doesn't mean much in the end. and i think i feel more comfortable not knowing how much the raw drivers cost, just to keep my mind at ease because i know i got ripped off to a certain degree. but that's alright, since i currently just don't have the time or knowledge to build my own speakers.

    secondly, there was ample bracing in the speakers, so that made me somewhat happy. it's good to know they didn't skimp on cabinet design.

    the thing that really annoyed me though, and which was probably causing the resonance, was that the gaskets for the drivers were not put on properly. i highly doubt they were even doing their job. they were simple thin foam gaskets, and they were all folded out of shape and probably not even making any sort of seal with the baffle surface.

    so i attempted to fix this myself by first applying sealing at the joints of the cabinets, because i wasn't really happy with the job they did, and i also fixed up those gaskets to make sure they were actually doing something.

    well, the speakers sound much better now, and the resonance is now gone. yeah, that's my story, just thought you'd all like to hear it.

    i'm not sure if i'd buy paradigm speakers again. i do like how these sound, but the quality control scares me. but then again, i am the second owner, so i have no idea of what these went through before they were put in my hands. they were in perfect condition cosmetically when i got them, however.

    i think the first thing in order when i ever buy a speaker again is to open it up. it's so hard not to. since i've opened up my paradigms i've also opened up every other speaker in this house purely out of curiosity. it truly is an eye-opening experience. hopefully one day when i build my own speakers (i'll probably start out building a subwoofer), i can learn from the things i've seen done wrong in these mass-produced speakers.
     

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