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Class D Switching Power Amplifiers and Power D/A conversion

Input impedence of SI T-Amp?
Input impedence of SI T-Amp?
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Old 4th June 2005, 02:11 AM   #1
Jim McPherson is offline Jim McPherson  United States
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Join Date: Jun 2004
Location: Maryland, USA
Default Input impedence of SI T-Amp?

I'm trying to build some passive line level crossovers for my T-Amps and cannot find the input impedence anywhere. Anybody know what it is, or what the correct procedure is for measuring it?

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Old 4th June 2005, 10:28 AM   #2
Panelhead is offline Panelhead
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Join Date: Dec 2002
Location: Houston
Default 10K with the 50K pot in parallel

The circuit board has a 10K input impedance. The 50K pot used in the SI is in parallel. This brings it down to 8.33K.

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