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Old 30th July 2003, 09:44 PM   #1
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Talking Commercial power amp cabinet!!!!

Hi guys

I know many of you (as I) have been looking for a decent power amplifier cabinet. Well, it may appear that the wait is over. Trust our good friends from the PC business to come up with what appears to be a truly excellent solution - a good looking PC case with extruded sides, at least 1" deep fins - it is fairly huge.

My calculations: 200W power to dissipate with max 25 degC elevation yields a minimum of .125 degC/W. It might even be way better.

http://www.warp2search.net/modules.p...icle&sid=13396

Cost is unknown for me at the moment.

What do you think?

Petter
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Old 30th July 2003, 10:09 PM   #2
tiroth is offline tiroth  United States
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I bet it costs a meellion dollars.
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Old 30th July 2003, 11:16 PM   #3
Thomas is offline Thomas  Denmark
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Quote:
Originally posted by tiroth
I bet it costs a meellion dollars.
'bout 1000$ me thinks.

Found the number on a computer nerd dot com something site (www.overclocking.dk).
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Old 2nd August 2003, 09:13 PM   #4
PMA is offline PMA  Europe
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Try http://www.fischerelektronik.de
The cabinet type is SKE 3 400.
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Old 3rd August 2003, 08:37 AM   #5
Vaihde is offline Vaihde  Finland
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I can't find the cabinet model SKE 3 400
Help?
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Old 3rd August 2003, 01:58 PM   #6
PMA is offline PMA  Europe
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I have it in a paper catalogue, page M38. Did you try to download their pdf catalogue? You can see the cabinet on http://www.pha.inecnet.cz/macura/pma1_en.html
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Old 3rd August 2003, 02:12 PM   #7
joensd is offline joensd  Germany
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I once bought a Fischer-type heatsink case from Schuro .
They are a bit cheaper than directly from Fischer.

Although I canīt say that I like to work with metal and do a good job at cutting and drilling it Iīd say itīs not worth buying those cases. You get so much more cooling for the same price and there are nice heatsinks out there with screw holders already.
This is especially true for class A circuits and just my 2 cents.
One more thing:
Once your amplifier works you might think : "What a pity the case is not my own work..."

My amp and the Fischers

heatsinks with screw holders

But I have to say the PC case looks really cool!
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Old 3rd August 2003, 02:59 PM   #8
PMA is offline PMA  Europe
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Nice amps and nice schematics, joensd. Fully symmetrical front end with folded cascodes - how does it work, how does it sound? Have you done any distortion measurements?

Pavel
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Old 3rd August 2003, 03:31 PM   #9
joensd is offline joensd  Germany
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It is very warm, powerful and relaxed sounding if was to find some words for it.
Itīs the Crescendo ME amplifier from Elektor.
Only problem it needs DC servo. Protection+Servo
I havenīt done distortion measurements as I donīt have the equipment for it but they look promising if you want low THD.
I can look for the complete article if youīre interested.

Cheers
Jens
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Old 3rd August 2003, 04:10 PM   #10
PMA is offline PMA  Europe
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As an inspiration and the tip the schematics is enough. DC servo should be a standard part of DC coupled amplifier.

Thanks, Pavel
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