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Old 31st August 2003, 07:08 PM   #1
matth is offline matth  United Kingdom
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Default My new 1000W PA amp (pic post)

Here are some step by step photos of my new dual mono block 500W PA amplifier.
1:
The case constructed with the transformers bolted in:
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Old 31st August 2003, 07:09 PM   #2
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2:
Most of the mains and power wiring done:
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Old 31st August 2003, 07:10 PM   #3
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3:
The cap bank and the input output boards on the second level.
Balenced line receiver and Vellamen speaker protection board:
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Old 31st August 2003, 07:12 PM   #4
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4:
The second level installed in the chassis with the power wiring coming up through:
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Old 31st August 2003, 07:13 PM   #5
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5:
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:
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Old 31st August 2003, 07:15 PM   #6
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6:
Closeup of amp boards and power supply caps:
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Old 31st August 2003, 07:16 PM   #7
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7:
Back of case with XLR inputs and binding post outputs:
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Old 31st August 2003, 07:18 PM   #8
matth is offline matth  United Kingdom
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8:
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.
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Old 31st August 2003, 07:39 PM   #9
jleaman is offline jleaman  Belgium
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Wonder how many people it takes to move that beast. : O )

Is that a blower fan in the heat sink's?
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Old 31st August 2003, 07:44 PM   #10
matth is offline matth  United Kingdom
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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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