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Old 10th December 2014, 09:56 PM   #1
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Default Largest Pass DIY Amp built?

I am looking for a new project. What is the largest Pass amp anyone here has built? Is it possible to build an X-600??

Mark
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Old 10th December 2014, 10:34 PM   #2
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Member AR2 built a clone of the X-600 some years ago. He brought his two monoblocks to Burning Amp too IIRC.

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Old 10th December 2014, 10:40 PM   #3
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AR2 , amongst others , made sort of X600

you can see them on pics from few first BAF events


few pics here

Click the image to open in full size.
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Old 10th December 2014, 10:50 PM   #4
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Those are beautiful! I would certainly like to know more! Not like this is going to be group project or something. Just the expense of four 3KVA toroids would make most people shudder. But I would be up for it and have time to do it, also have Bridgeport vert. mill as well! I will look for his member info and write to him. Or perhaps he will see this thread...

I am not so sure DIY X Amp can be scaled up this big or not.... and still be safe.

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Old 10th December 2014, 10:58 PM   #5
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Wow! If it wasn't for the construction pictures, it would be hard to
believe it is not a top flight commercial product.
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Old 10th December 2014, 11:05 PM   #6
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Quote:
Originally Posted by Mark Allen View Post
...
I am not so sure DIY X Amp can be scaled up this big or not.... and still be safe.

Mark


yes , they can

though .... I have opposite problem - even if I make smallest bridged amp possible (taking in account minimal allowable PSU voltage for output mosfets ) , that's still too much power for my needs .........



whatever ....... maybe if I use small Toshiba in output ........ with some tiny Iq .....

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Old 10th December 2014, 11:15 PM   #7
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Well, I don't need 600 watts either... I just need a big project unlike any I have done before. Then I also have excuse to buy gigantic speakers!!

Mark
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Old 10th December 2014, 11:16 PM   #8
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If you try to build a passively cooled 50watt SOZ, it could possibly be physically the largest...
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Old 10th December 2014, 11:16 PM   #9
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So I just sent AR2 an email... so we'll see if he is willing to share what he built with me.... I really am up for this....

Mega Amp... I was expecting you! I agree... but I would water cool it so it would still be relatively small. It might even be practical to water an cool X-600. Well, not really water but same solution of Glycol we use in D-Cinema projectors would work really well.

Last edited by Mark Allen; 10th December 2014 at 11:19 PM.
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Old 10th December 2014, 11:17 PM   #10
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naah

smaller the amp , bigger the speakers





you can always use these big donuts as chokes in properly sized big speakers

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