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Old 15th November 2001, 11:46 PM   #1
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Default 1800W RMS into 4 ohms per channel

I really need a schematic or design help for a class AB audio amplifier with bipolar outputs that puts out 1800W RMS into 4 ohms per channel (NOT bridged). I want it to have a supply voltage of about +/-120 to 170VDC so I can easily make a power supply for it that runs on 220. I started thinking about my design over a year ago and have made almost no progress! I would be very grateful for some help.
Thank you.


[Edited by Kilowatt on 11-16-2001 at 06:35 PM]
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Old 16th November 2001, 03:06 AM   #2
paulb is offline paulb  Canada
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http://members.optusnet.com.au/~aussieamps/1kwamp.htm

Biggest I've seen.
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Old 16th November 2001, 05:01 AM   #3
walker is offline walker  Australia
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Kilowatt, unless you are trying to kick-start an aircraft carrier or have the hungriest subwoofer in the state, you may be better off with a number of smaller amps and more connections. Like the sound renforcement guys do. Have you considered it?
There are lots of advantages for going this way, particularly if you want to test the threshold of pain in style

Regards WALKER

PS With this sort of gear any LITTLE slip up will be expensive!
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Old 16th November 2001, 06:31 PM   #4
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The SuperSymmetry patent #5,376,899 shows the
schematic for an X1000. It will do 2KW into
4 ohms. It runs +-75 volts on the output rails
and +-90 volts on the front end.
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Old 16th November 2001, 08:43 PM   #5
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Unless you want to use the amp to heat your house, I would suggest that you try a Class-D amp. A schematic for a high power Class-D amp can be found at:

http://www.crestaudio.com/media/pdf/lt_schematic.pdf

Good luck
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Old 6th June 2004, 02:07 PM   #6
DFI is offline DFI  Romania
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Can anyone help me with a new link for crestaudio's schematic 'cause the old link doesn't work anymore
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Old 6th June 2004, 07:15 PM   #7
DFI is offline DFI  Romania
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Oooooops It turned out that the site was temporarily down... I got it now.
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