Vintage Receiver
Misa M asked:


1 Comment so far

  1. Chuck on April 29, 2010 6:32 pm

    The power amplifiers are probably going into safety shutdown to keep from frying them. You may have too low of a load impedance on the amps – especially if you are driving more than one pair of speakers. For example, 2 4-Ohm speakers on a single channel presents an impedance of 2 Ohms. If your amplifier is rated at 200 watts, that probably means 100 watts per channel. If that is rated for an 8 ohm load, then the max rms current that the amp can deliver is 3.4 amps. If you have a 2 Ohm load on the amp, and it trips out at 4 amps, then it will quit at only 32 watts delivered.

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