Amadeus DIY HighEnd Audio.

Discussion in 'Home Theater Projects' started by Andres Arizaga, Feb 27, 2003.

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  1. Andres Arizaga

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    Hi there.[​IMG]

    In May of the last year a friend and I, began to see the
    possibility to get in to a DYS integral projetc.

    The development of the loudspeakers, was in charge of Mikel.
    I was in charge of the acoustic improvement of the rooms, the acoustic treatment accesories, racks, stands, etc.

    Our first objective was to make a versatile system, that had optimal performance in stereo, home theater and multichannel audio.

    Based on audiofile criteria, we decided do that without the active SubWoofers, redirecting the LFE channel for home theater and multichannel audio, to the full range; main channels.

    This 5.0(for DTS, DD, and DVD-A), or 6.0(DTS-ES or DD-EX)full range configurations, are based on which each active channel, will be in charge of two designed pieces to operate in joint .

    Each full range channel, its conformed by two pieces, a passive SW, and a bookshelf loudspeaker.
    The decision to design two separated boxes, was with the aim to facilitate the acoustic optimization of the room.

    For the design of the 12”passive subwoofers, we decide to choose a passive radiator configuration, instead of popular bass reflex or vented configs.

    Take a look, to some pictures:

    The compact passive SW, called TRONADOR. (one 12" driver, and two 12"RPs).
    [​IMG]

    The full size passive SW, called LANIN (one 12" driver, one 12" RP).
    [​IMG]

    The center channel, called Catedral (, two 6” heavy midwoofers, and a ½” super tweeter, all transducers are magnetically shielded)
    [​IMG]

    And finally the compact satellite, called Aconcagua ( one 6” heavy midwoofer, and a ½” super tweeter).
    [​IMG]


    Extra pics:
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]




    All the transducers, are maded of polypropylene,and they have high sensitivity ratings, 93dB.

    Every box is built with 22mm high density MDF, the 6 faces are 45º assembled, with internal braces, and with the best handmade finishes.


    Argentina, has had a long tradition at HIGH END audio, and our idea is to continue it.

    I´ll post, some info about the development of accoustics treatment accesories,for our project; next time.[​IMG]
     
  2. Good luck with the venture!!!...but...

    1)it is against forum policy to advertise. Plan on this thread getting locked or deleted
    2) you have a fairly wide CTC spacing on the MTM's ..why?
    3) The MTM's have the tweeter at a really low position relative to ear level. Why? MTM's have poor vertical dispersion.
     
  3. Brett DiMichele

    Brett DiMichele Producer

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    Anthony,

    I usually bite my tongue but I am done biting my tongue..

    One Point #1 I completely agree there is a rule agains free
    advertising here. I don't honestly believe that was Andres
    intention but rather he wanted to show off his work. But
    none the less it does still border on advertising and the
    mods will decide what to do with it.

    On the other points. Andres didn't come here and ask for
    your advice on speaker design. So why then the questioning
    nature? This is not the first time I have seen this from you
    or from a select group of others. You are not an expert nor
    am I nor are most of us (with a few exceptions) we are all
    just excited and learning, if we choose to do it the hard
    way so be it. But readind the LoudSpeaker Cookbook and
    building a couple DIY designs does not make an audio expert
    in my opinion (and I am not saying you ever claimed to be)

    It's just that a few certain people around here have a very
    questioning nature about someone else's designs when they
    take it upon themselves to deviate from some magical plan
    and then all the sudden it turns into a "Well you could have
    done this" and "You should have done that" thread and I
    think that's a great way to discourage people from the hobby
    and that's the exact opposite from what we all want.

    Are his Mids too far away from his Tweeter? They could be...
    I don't even claim to know.. But for all you know, for all
    I know they may sound absolutely fantastic and I guess if
    Andres likes them, and his clients like them. Then isn't
    that all that really matters?

    I hope you don't take this as a personal attack because I
    know you are intelligent and I know how much you contribute
    to the forums as a whole. I just think sometimes we need to
    take a step back and relax try not to be so clinical and
    remember this is about FUN this is about ENJOYMENT not
    always about numbers.

    Peace! [​IMG]
     
  4. Andres Arizaga

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    Anthony.

    I uploaded the pics trying to show all our DYS models, and its different possible combinations.

    Obviously that, there are certain photos that do not correspond with the final distribution of each loudspeaker.

    It seems that the tweeter has a fairly wide CTC spacing, because its face plate is small, just that.
    We are trying to design an special, and bigger faceplate, made it with foam to controls the tweeter's radiation pattern and acoustic loading properties.

    Besides, the distance between the center of the tweeter and the center of the midwoofers, is 5"; this spect is the same that you can find in many others loudspeakers desings from a lot of brands. For example the Acosutic Research C2.

    About the MTMs configuration, there are several opinions, but almost all the centers channels in the market use this config, so I dont think that distribution sounds bad.

    What´s your idea for a CC?

    Thanks Brett for your support.[​IMG][​IMG]
     
  5. Brett DiMichele

    Brett DiMichele Producer

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  6. MigueBortolotto

    MigueBortolotto Auditioning

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    [​IMG] Hello, I am the loudspeakers designer.
    Thanks Brett for your support.[​IMG]
     
  7.  
  8. Brett DiMichele

    Brett DiMichele Producer

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    Tony,

    It's all good man! I understand now that you was just
    curious. It's just that I have seen too many posts that
    seem to do nothing but critique rather than give a sense
    of constructive critisism. I am not saying you are one of
    those people that was never my resolve at all.

    I just hope I didn't offend you with that post and I hope
    you understood where I was comming from. [​IMG]
     
  9. I understand completely where you are comming from. ...and I can easily see where some of my comments come off as critiques....I assure you that most of the time though, those comments are usually just direct questions to understand something that I either dont understand, or have conflicting "ideas" (ideas=/=absolute truths)

    (on a side not, it usually takes a lot to truely offend me[​IMG])
     
  10. Brett DiMichele

    Brett DiMichele Producer

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    Tony,

    I understand what ya mean.... We are inquisitive by nature.
    I guess we have to be, how else would we learn (besides
    trial and error, and in the case of speaker building more
    error than anything probably LOL!) I speak of myself in
    that reguard! [​IMG]

    The best thing about this place (besides the great people)
    is the boundless wealth of free knowledge!
     
  11. Cam S

    Cam S Screenwriter

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    Andres, very nice speakers, I love the design of them. They look like they could produce some serious sound!

    Also good to see that Brett and Anthony kissed and made up [​IMG]
     
  12. He was checking out my butt as I walked away....[​IMG]
     
  13. MigueBortolotto

    MigueBortolotto Auditioning

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    [​IMG] Hello.

    Thanks Cam, for your commentaries. [​IMG]

    Antonhy, in fact, that center channel design , is the loudspeaker wich has given the prestige to our DIY projects.

    Being full range, and complemented with a dedicated Passive SW, allows us to take the full advantage from DVD-Audio.

    Many DVD-Audio send the signal of the electric or acoustic bass, percussion, and effects of voices, throug the central channel loudspeaker.

    Not always they are recorded and mixed in the same way, as DVD-Video, where the main voices go towards the central channel , like in DD 5,1, DD-EX 6,1, DTS 5,1 and DTS-ES 6.1.

    At the same time, our system looks for optimize its performance based on audiophile criteria.

    For that reason, we avoided the use of active subwoofers, and redirecting the LFE (in DTS or AC3 and the .1 channel of the DVD-Audio) to the main loudspeaker´s passive subwoofers...

    But also it must be versatile for the Home Cinema, where many users put their center close, above or under the TV screen, with all the magnetic risks that this situation produces.

    I agree with you, those who have a projector at his Home Cinema, also, should have the same loudspeakers config for each channel.

    Greetings
    Miguel Bortolotto

    PD: my web page under construction is:
    http://condor5411.tripod.com/
     
  14. Andres Arizaga

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    Hello.[​IMG]

    How many of us, gives the real importance that the acoustic deserves?

    I ask this because, I have been investigating in other forums from Spain, and South America; and saw that very few of us, take this variable, sirusly.

    Like I said, I am in charge of, the room acoustic conditioning, and I wrote an article about this theme, wich I´ll translate to post it here, soon.

    Now I´m working on an specific QRD diffusor, for the listening room.

    Im using EXEL tables for the mathematics calculations.

    Good ByeR.[​IMG]
     
  15. MigueBortolotto

    MigueBortolotto Auditioning

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    [​IMG] Hello
    These are the curves of sensitivity (db) in relation to the frequency (hz), of our most experienced models.
    [​IMG]

    Greetings
    Miguel Bortolotto

    PD: my web page under construction is:
    http://condor5411.tripod.com/
     
  16. Andres Arizaga

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    Hi.[​IMG]

    We are back, with some news.[​IMG]

    We have been working on, two new models.

    Here they are.
    [​IMG]
    The two pieces full range tower, and the two pieces full range center.

    The full range, 3way tower is composed by, a piramidal satellite, with two tweeters (one on the front, and the other one on de back) and a 6"1/2 midwoofer, on the top;and a passive radiator SubWoofer, with 12" driver, and a 12" RP, on the bottom.

    [​IMG]
    [​IMG]
    (the flush mount for the midwoofer it is not done yet)

    There will be two version of it, one with convetional Xover, and the other designed for biamplification, with an hibryd 3way crossover, an active 18db X-over (3rd order Butterworth), for the low cross(250hz), and a passive for the high cross (4500hz).

    These babes are huge, 90lbs, 15"W x 50"H x 16.5"D.
    They will be hig gloss black lacquered finished.

    We are still working on the center.[​IMG]

    What do you think?[​IMG]
     
  17. I like the mains. very wilson WATT/PUPPYish (which I like). ..not sure about the center though. Good luck!
     
  18. Andres Arizaga

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    Anthony.

    Yap, Wilson builds great loudspeakers.[​IMG]

    Ours, have some differences with the WATT/PUPPY system.

    “8 Ohms, 95db, two tweeters, 12” woofer, and 12”RP config.”


    The Wilson`s, are 4Ohms, 93db, dual 8” woofers .

    Besides, we are working on the multiamplification configuration, using active cross over, something like the B&W PRESTIGE NAUTILUS.

    ByeR.[​IMG]
     
  19. Lewis Besze

    Lewis Besze Producer

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    Cool works guys, keep us posted.
     
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