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Thread: 4343 crossover modifications

  1. #316
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Well it looks like this thread died .
    Hey hey Great members...


    Sorry for long step silent time...

    --- Actually In montreal is meteo is really pain, my computer is tilt a couple of time this week because the tempeture is arround 100 F or 32 C plus 95 degree humidex (so the relative temperature is arround 40 C !!!!...)

    --- The ends of school and vacancy of kids and small vacancy of my wife is put out myself of my little construction of bigNet...

    --- Professionnally I'm very busy, I run big set-up calibration of my B&K of national reaseach lab and couple of work job of insulation architectural design: investigation layout performance, so my instrumentations is request for the job (sic),
    in couple days or week the situation is back to normal... and the passion is come to married of JBL 4343 and Bignet...


    I keeped my small time to correction of the error in my electronic set-up in regards of faucon eyes of Earl ... (thanks again...)


    Jean.
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  2. #317
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Zilch
    Jean is testing, no doubt.
    The process will require considerable knob twiddling and head scratching.
    Yes my dear...

    many small details keep big time for good integration andd looks sharp for eyes...

    I work wood for round backpanel...

    -I works gabarit for internal brace support, and look design for plug on top and botton for fill in and out the sand of network...

    and because I have no experience on that the time for integrate all aspect is long... sorry for time delay suspense (yuk yuk yuk )

    exemple

    ---I hesitate to put the back panel in entire black, flat finist paint, or put a wood (same as speaker...)

    --- I hesitate to plug look finish ( i hate if is look to plumber plug )

    --- because the price of good L-pad I buy a cheap for test impedance and electrical correlation voltage spl ( maybe some poeple is feel what I'm talk here muhahahahahaha)

    so dont desasperate I garantee you receive the final word of this adventure in world of passive network....






    Jean.
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  3. #318
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Now for the finishing touches. Some CNC routing for a nice front face plate perhaps!

    Hi and WOW ! metal bench !!! is not a joke

    Beautiful set-up ...


    your network is look same a individual component electronic...

    do you put in floor ?? on speaker ???

    And what is intriguishing connector ??? speackon on neutrik ???




    Jean.

  4. #319
    Senior Member Ian Mackenzie's Avatar
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    Glad to see you are around Jean.

    The external crossover will sit behind the speakers.

    I will show more pics when complete. Just some pics here as a primer for a project.

    NEWS FLASH

    At the moment the recipient is doing some very interesting listening tests in full passive mode with original passive 4343 crossover without active crossover.

    "To present an analogy, with the bi-amp setup it sounded like there was
    someone or something in between me and the speaker. I could still hear the
    speakers fine. But now, powered only with the Pass and going all passive
    it's as if that obstruction has moved out of the way."

    Less is more. At least with a Passlabs X250.

    Further details of this evaluation will be discussed in a project. I must get Nelson Pass to view this thread!

    This arrangement may seem a contradiction to convention for those biamping, particularly those convinced bi amping and bypass of the 52uf capacitor sounds better.

    The introduction of the extenal passive crossover will be very interesting.

    The Doctor

  5. #320
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie

    "To present an analogy, with the bi-amp setup it sounded like there was
    someone or something in between me and the speaker. I could still hear the
    speakers fine. But now, powered only with the Pass and going all passive
    it's as if that obstruction has moved out of the way."


    Less is more. At least with a Passlabs X250.

    This arrangement may seem a contradiction to convention for those biamping, particularly those convinced bi amping and bypass of the 52uf capacitor sounds better.
    [/i]

    HOHOHOHOH



    This is a big dip point of view and you start or re-start a old war... My brother is look multi-amp is better... For me is real only if you put same high-end quality and you cancel completely the passive network...

    so accuphase (look same serious of passLab) electronics network for 4 driver + interconnect + 4 amp + regulation, + control vibration furnish = more more more money than high-end passive crossover !!!

    So I put my head on the wood too and I assume entirely this point of view...

    , and again...


    Jean

  6. #321
    Senior Member Ian Mackenzie's Avatar
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    Jean,

    I am not interested in a long winded debate on bi amping.

    I merely quoted the impresssions of a listener who removed his active crossover.

    I found the subjective remarks so profoundly accurate from my own experience with active crossovers I posted them here....there is perhaps one exception.

    Audio reproduction by the way is not an exact science and as such each listener is entitled to his own opinion.



    The Doctor

  7. #322
    Senior Member Ian Mackenzie's Avatar
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    Quote Originally Posted by B&KMan
    HOHOHOHOH



    For me is real only if you put same high-end quality and you cancel completely the passive network...

    so accuphase (look same serious of passLab) electronics network for 4 driver + interconnect + 4 amp + regulation, + control vibration furnish = more more more money than high-end passive crossover !!!

    So I put my head on the wood too and I assume entirely this point of view...

    , and again...


    Jean

    Jean don't jump to conclusions,

    Everyone has their own point of view and The Lansing Heritage Forums respects that.

    When I was a young student of audio nirvana I would always look up to and respect Karen, the beautiful Passlabs Diva and the Master Nelson Pass.....and I continue to do so.

    There are some things which you just can't put a number too but which guide you to perfection.

    The Doctor

  8. #323
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Everyone has their own point of view and The Lansing Heritage Forums respects that.

    There are some things which you just can't put a number too but which guide you to perfection.


    I'm not insult or irrespect others members !
    I just put my point of view.

    (manys others expose a terrible scepticism of cable, high tech amp, etc..)


    I expose the subjective remarks so profoundly accurate from my own experience with active-passive crossovers and I posted them here..




    Jean

  9. #324
    Senior Member Ian Mackenzie's Avatar
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    Quote Originally Posted by B&KMan


    I'm not insult or irrespect others members !
    I just put my point of view.

    (manys others expose a terrible scepticism of cable, high tech amp, etc..)


    I expose the subjective remarks so profoundly accurate from my own experience with active-passive crossovers and I posted them here..




    Jean


    Jean,

    Most sceptics are ignominious bastards, they don't ask the right questions so they never get the right answers!

    The Doctor

  10. #325
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Most sceptics are gnominious bastards, they don't ask the right questions so they never get the right answers!
    The Doctor
    Wow !!! I listen the voice of moderator in you...



    Jean.

  11. #326
    Senior Member B&KMan's Avatar
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    OK

    (after this interlude philosophy...)) I'm back with new pict of construction...

    The problem of postSpeakers is really complex, the connectors is not accomode this depp of wood and the pine is too soft for build hards fixation ( the bolt is loose by natural compression of wood (...) )

    So I put a very HDF plate and work a couple of hours for create a 2 layouts swandwich fixation... My first problem is the connector never loose in the time because the inside of network is filled on sand... so imagine the party for the back nut of post is loose...

    So, I know the WBT is not the top on the top connector but I have...



    next news soon...




    Jean
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  12. #327
    Senior Member Ian Mackenzie's Avatar
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    Noa's Ark anyone?

    The Doctor

  13. #328
    Senior Member B&KMan's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Noa's Ark anyone?

    The Doctor
    I'm quite shaking by the long silence of other member...

    I put a vibration analyse of caps in regards on the nature of panel fixation and no nothing comment...

    Well, in other hand, The look up thread number is up regulary so I suppose many silence is not equal to dead thread...

    so, for this silent forum (at this time) I put my last evolution of BigNet...

    I hope this is maybe broken silent (yuk yuk yuk )

    see pict
    ---start 4343
    --- without grill
    --- open strip
    --- and prelude of test (the set-up mesurement...)

    The L-pad is cheap but for test is OK...

    I not decide if I reclycling original L-Pad (dispendious ) or put resistance for equivalent...

    I try this set-up

    and if is good , I probably buy a original metal oxid resistance (high grade) exposed in listing of Giskard...




    Jean.

    p.s. the result is coming soon (Ah !! the suspense... )
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  14. #329
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    Quote Originally Posted by B&KMan
    so, for this silent forum (at this time) I put my last evolution of BigNet...

    I hope this is maybe broken silent (yuk yuk yuk )
    Jean - I think the main reason there aren't a lot of members commenting in this thread is because what you're doing is so far advanced that most of us can only watch. Very few people here, (me included), have the comprehension to really understand all the nuances of what you're doing. I'm totally impressed, as I'm sure most of us are, and can only wait to see what your final impression is. Hopefully, some other members here will get the chance to listen to tham and add their opinions also.

    John

  15. #330
    RIP 2011 Zilch's Avatar
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    O.K., I like the tripod microphone dealie....

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