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Found 1 result

  1. edouble101
    I have about 30 1990's amplifiers. Mostly Precision Power. I want to test the amplifiers both for functionality and for max unclipped output. I will record the data on a spreadsheet. I will also record by video. Method : Power supply - 12v car battery Source - Ipod Load - (2) 200w 8ohm non-inductive resistors Oscilloscope - DSO Nano panel meter for measuring power supply voltage Amplifier output, resistor, DSO Nano, and volt meter connections "Switched" turn-on Positive and negative blocks Wattage will be calculated using P=E^2/R. Resistance of the dummy load will be measured before and after the test. Are there any faults in my testing method? First amp tested is a PPI Ax400. Max unclipped output across all four channels is at 15.16v a/c @ 1000hz. Dummy load resistance was 4.2 ohms starting and after the test. This would make max unclipped power at 54.72 wrms. This was at 12.54v d/c. Video of LR channel being tested on a PPI Ax400
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