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matth 31st August 2003 07:08 PM

My new 1000W PA amp (pic post)
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Here are some step by step photos of my new dual mono block 500W PA amplifier.
The case constructed with the transformers bolted in:

matth 31st August 2003 07:09 PM

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Most of the mains and power wiring done:

matth 31st August 2003 07:10 PM

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The cap bank and the input output boards on the second level.
Balenced line receiver and Vellamen speaker protection board:

matth 31st August 2003 07:12 PM

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The second level installed in the chassis with the power wiring coming up through:

matth 31st August 2003 07:13 PM

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The two 500w power amps installed on the heatsinks above the res caps. Amp are from Silicon chip magazine and board layout was posted by HugoBross:

matth 31st August 2003 07:15 PM

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Closeup of amp boards and power supply caps:

matth 31st August 2003 07:16 PM

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Back of case with XLR inputs and binding post outputs:

matth 31st August 2003 07:18 PM

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Case complete, this is fairly heavy. It has two 1KVA transformers in the bottom. The base plate is 5mm Alu and the middle plate is 5mm Alu every thing else is 2mm Alu.

jleaman 31st August 2003 07:39 PM

Wonder how many people it takes to move that beast. : O )

Is that a blower fan in the heat sink's?

matth 31st August 2003 07:44 PM

It takes two people, I have carried it mysely but only about 20 metres. Each heatsink has its own ducted fan with its own power supply in the bottom, should keep it cool don't you think??;)

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