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Thread: DIY Aleph 2 Monoblocks

  1. #16
    Senior Member Ian Mackenzie's Avatar
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    Quote Originally Posted by LowPhreak
    Very cool, Guido. I've always wanted to pick up one of the Pass projects myself.

    Tho' I'd rather have a couple of the X-series amps already built and waiting on the front door when I got home.

    Meanwhile, you could send me those blue Coke cans for "recycle" when you're done with 'em.
    I know wat you mean.

    A couple of people have attempted a X diy and apparently it was good.

    I now have a factory X250.5. I feel I have been blessed by Pass.

    When I get more time I will showcase it on the forums.

    Ian

    Ian

  2. #17
    Senior Member Ian Mackenzie's Avatar
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    Guido,

    When you get to matching the input pair let me know.

    Ian

  3. #18
    Senior Member Guido's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Guido,

    When you get to matching the input pair let me know.

    Ian
    They are pre-matched IRF9610's. Do you need the values?

  4. #19
    Senior Member Ian Mackenzie's Avatar
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    That's okay. I was going to offer a suggestion on how to get the best match.

    What tolerance?

    Ian

  5. #20
    Senior Member Guido's Avatar
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    I don't know Ricks matching setup. On all 6 9810s is written 67 so I suppose they're matched withn 10mV.

    As for the 240s
    7 of them show 43
    All other show 45
    so I suppose they're matched within 0.2V

  6. #21
    Senior Member LowPhreak's Avatar
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    Ian -

    I have yet to hear an X .5 bigger than the 150.5. Guess I should take a to the Big Apple soon.

    Ya know, I wish he'd make a smaller .5 monoblock, like say a X100.5.

  7. #22
    Senior Member northwood's Avatar
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    1.2

    ALEPH1.2 MONO
    look the left
    Attached Images Attached Images  
    A government big enough to give you everything you want is big enought to take away everything from you

  8. #23
    Senior Member LowPhreak's Avatar
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    Quote Originally Posted by northwood
    ALEPH1.2 MONO
    look the left
    ...and I see it's "portable" too!

  9. #24
    Senior Member morbo!'s Avatar
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    yeah
    definatly the coolest kid on the block with that beatbox)
    nice work northy
    http://www.medpot.net/forums/

    daily volcano demo`s
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    tell`em morbo sent you

    mention lansing heritage for 10% off

  10. #25
    Senior Member Guido's Avatar
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    Quote Originally Posted by northwood
    ALEPH1.2 MONO
    look the left
    Is this your Aleph?

    Currently my cabinets are at the metal worker to do the cutouts and drillings professionally. I'm also waiting for the 1000VA 2x37V Transformers to arrive.
    Soldering the PCB's will start tomorrow.

    Should I use normal solder or 2% silver solder?

  11. #26
    Senior Member LowPhreak's Avatar
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    Why be stingy at this point? Just use the 2% AG! This is a Pass amp you're doing, right?

    Or you could do away with all of that hassle (and your various JBL iterations) and get a set of Rushmore's. Problem solved! But who's got $40k or so laying around for speakers?

  12. #27
    Senior Member Ian Mackenzie's Avatar
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    Quote Originally Posted by Guido
    Is this your Aleph?

    Currently my cabinets are at the metal worker to do the cutouts and drillings professionally. I'm also waiting for the 1000VA 2x37V Transformers to arrive.
    Soldering the PCB's will start tomorrow.

    Should I use normal solder or 2% silver solder?
    I doubt it matters, the quality of the joint is what matters more. ie these thing get bloody HOT mate! . Take your time, cleanliness is a must and use a powerful iron is needed.

    Here the Pass gals in production...sweetie pies. The Hug I still remember from K! (2nd from left)
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  13. #28
    Senior Member Guido's Avatar
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    Quote Originally Posted by LowPhreak
    Why be stingy at this point? Just use the 2% AG! This is a Pass amp you're doing, right?
    That's exactly what I'm using.


    Quote Originally Posted by Ian Mackenzie
    I doubt it matters, the quality of the joint is what matters more. ie these thing get bloody HOT mate! . Take your time, cleanliness is a must and use a powerful iron is needed.
    That's a given!

    Thanks for the help guys. Yesterday I soldered the 1st mainboard and the 1st constant current board.

    I'm still waiting for the right (2x37V) transformers and the 220uF Panasonic FC's to arrive.

  14. #29
    Senior Member Guido's Avatar
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    Ian,

    does it makes sense to bypass the Z5?
    If yes, why and with what cap?

    Thank you!

  15. #30
    Senior Member Ian Mackenzie's Avatar
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    I never did, use only a small value 0.1 - 1uf.

    It just reduces the zenor noise bandwith.

    Ian

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