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Thread: DIY amps.Pre and power,and things like that.

  1. #1
    Senior Member northwood's Avatar
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    DIY amps.Pre and power,and things like that.


    Can I talk about that here?
    A government big enough to give you everything you want is big enought to take away everything from you

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    Senior Seņor boputnam's Avatar
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    Perfect!
    bo

    "Indeed, not!!"

  3. #3
    Senior Member northwood's Avatar
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    Quote Originally Posted by boputnam
    Perfect!
    Thank you boss
    A government big enough to give you everything you want is big enought to take away everything from you

  4. #4
    Senior Member northwood's Avatar
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    Target

    To us JBL fans,a best choice of engine to drive JBL is tube amp,otherwise, another choice is Pass I think,pure a class,powerful energy and
    opened circuit diagram,even the support from passdiy.com.Stupid northwood has been planning his pass for couples of years.To tell the truth,I never thought that would be so hard for me to do it,many things happened to me in these years,procedure was interrupted once and again.
    I had to adopt unconventional method to carry it out. That is to do a little part of it once I have time and opportunity.
    My target is a pre-amp and a power-amp.
    Pass aleph P 1.7 and aleph 1.2.
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    A government big enough to give you everything you want is big enought to take away everything from you

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    Northwood- excellent choice! You have very good taste! Let me get this started for you:

    Calling Ian!!!!

    (Ian is our resident Pass expert)

    Are those beautiful schematics, or what!? Everything is so neat and thought out. Talk about your audio OCD!

  6. #6
    Senior Member Ian Mackenzie's Avatar
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    This is no boss here and I am no expert.

    Mod..move it to diy.


    Tell us the big picture?

    What speakers are you going to run?

    The other thing is the power bill. Expensive to have left on all the time.

    Certainly it will be fun to make and will sound very excellent.

  7. #7
    Senior Member northwood's Avatar
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    Quote Originally Posted by Ian Mackenzie
    This is no boss here and I am no expert.

    Mod..move it to diy.


    Tell us the big picture?

    What speakers are you going to run?

    The other thing is the power bill. Expensive to have left on all the time.

    Certainly it will be fun to make and will sound very excellent.
    I wanted to publish the thread in DIY,but I'm oversensitive a little bit now,I considered,Lansing Related Gear is further than Lansing Product DIY.
    I'll upload more pics tomorrow,the pre-amp has been finished,power-amp is on the way.
    I'm using 4425 now,I will change it to 4333 or 4343 or 4344 this year,looking for them,prices here are much higher than American market.
    I'm imagining that the bills come down from sky like snowflakes,suddenly telephone rings ,I take up the receiver,the bank manager shout at me "Northfuckingwood, u r bankrupt........."
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    A government big enough to give you everything you want is big enought to take away everything from you

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    Senior Member northwood's Avatar
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    I designed this aluminium cabinet for 1.2 use in 2004

    But I've given it up and redesigned a new pair of them like original look of aleph 1.2.
    It took me one whole month to make it all by hands,that teared me down at last.I sweared that I would never do something like this for ever.
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    A government big enough to give you everything you want is big enought to take away everything from you

  9. #9
    Senior Member Ian Mackenzie's Avatar
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    Well that is a nice 4425.

    Look forward to more diy pictures.

    regards

    Ian

  10. #10
    Senior Member Ian Mackenzie's Avatar
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    Forbidden Planet Anyone!

    Very nice work.

    I agree 90 % of the work is in making the case

    Here is my Aleph 2. I never got around to polishing it.

    I thought about making a traditional Aleph case but how do you pick it up without burning your fingers?
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  11. #11
    Senior Member Ian Mackenzie's Avatar
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    Northwood,

    How do you cut and finish the aluminum panels?

    The reason I ask is that my shop sells the panels cut to size but they are never dead square and I spent hours filing then true.

    My next challenge with be to build a router table with a jig to finshing the panels. I will share the design when I am finished and it will make building cases much better and quicker!

    You can get an excellent finished edge with an aluminium router bit.

  12. #12
    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by Ian Mackenzie
    Mod..move it to diy.
    Getting right on it...
    bo

    "Indeed, not!!"

  13. #13
    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by northwood
    I'm using 4425 now,I will change it to 4333 or 4343 or 4344 this year,looking for them,prices here are much higher than American market.
    Nice! Show us what else is in that little shop - there are some great looking cabinets in the background - many of which we cannot get over here.
    bo

    "Indeed, not!!"

  14. #14
    Senior Member northwood's Avatar
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    Quote Originally Posted by boputnam
    Nice! Show us what else is in that little shop - there are some great looking cabinets in the background - many of which we cannot get over here.
    Sigh!!!!!
    I hate that I'm not in America when I play JBL,just that moment ,because I love JBL that much,but I must stay here and do what I have to do.
    JBL products in America are more cheaper and you have so many choices,once I tell you the prices here you would have no any interest in it.
    Thanks for you move this thread to DIY,thank you.
    A government big enough to give you everything you want is big enought to take away everything from you

  15. #15
    Senior Member northwood's Avatar
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    Quote Originally Posted by hapy._.face
    Northwood- excellent choice! You have very good taste! Let me get this started for you:

    Calling Ian!!!!

    (Ian is our resident Pass expert)

    Are those beautiful schematics, or what!? Everything is so neat and thought out. Talk about your audio OCD!
    Once I got enough money I would not diy,LOL,just kidding,DIY is another kind of fun.
    A government big enough to give you everything you want is big enought to take away everything from you

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