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Old 27th February 2002, 10:30 AM   #1
jouch is offline jouch  Sweden
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Question Gamut amplifier

I'm wondering I some body have some informations about Gamut amplifier.
The construction and circuit seem to be realy easy, they only use two mosfet per channel.
But that's all I know.
Thanks
Christopher
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Old 27th February 2002, 11:38 AM   #2
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All I know is that high power MOSFET's modules in a so-called Mini-Bloc (SOT-277) package are used.

The schematic would be rather similar to an upscaled aleph or so, I think...
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Old 27th February 2002, 02:55 PM   #3
jouch is offline jouch  Sweden
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So I suppose I should use the same architecture as one an Aleph, but change the out put stage with this block?
Thanks
Christopher
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Old 27th February 2002, 07:36 PM   #4
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Certainly you can give it a try. I have built some
Alephs and Zens with the IR TO-240A packages,
and the 500 watt rating is certainly attractive. They
consist of 4 regular sized power chips arranged in
parallel or series/parallel depending on the part.

However...

These are 10 times more expensive than a single
device at 200 watts, which while not a consideration
for me, (mine were samples) will not be ignored by
most everybody else.

and...

You cannot assume the level of matching of the
parts as it appears that they are intended for
switching applications, where Vgs matching is
not so important.

nevertheless.....

These are cool looking industrial parts, and you'll
be the envy of all your DIY buddies.
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Old 28th February 2002, 02:19 AM   #5
lohk is offline lohk  Europe
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What about the Greenwall amplifiers ?
They look like a complete ZEN family ripoff.
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Old 28th February 2002, 08:52 AM   #6
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Talking greenwall amps

Hallo,

had a close look at the greenwall amps. They are Zen Amps. Look at www.greenwall.de

Reinhard
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Old 28th February 2002, 08:03 PM   #7
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They aren't the first. A certain outfit in
North Carolina also plagiarized the Zen.
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Old 28th February 2002, 08:12 PM   #8
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Default Zen

And they even have a link to Passlabs on thier site!

H.H.
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Old 8th August 2012, 03:38 PM   #9
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Quote:
Originally Posted by reinhard View Post
Hallo,

had a close look at the greenwall amps. They are Zen Amps. Look at www.greenwall.de (www_greenwall_de)

Reinhard
Unfortunately this URL don't goes open.
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Old 8th August 2012, 03:59 PM   #10
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M250I, monoblock amplifier that I can make by myself.

Click the image to open in full size.

Thanks
Anadigit
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