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Amplifier with 16 Ohm output to speakers

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Zebigboss | 13:26 Sat 29th May 2010 | Technology
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I have been having a problem with an amp with a 16 Ohm output in that at highish volume the speakers will cut out and play very quietly and then go back to the previous volume. At the repair shop they say that the 16 Ohm output is too high for the speakers. Is there some way to reduce the ohmage (?) of the output so it will play properly on 8 Ohm speakers?
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I would think that was the amp crowbar-ing the outputs to protect itself. The speakers are, for sure, too low an impedance for the amp to drive properly.
The impedance is set by the value of the voice coils + crossover (if any)
The only way to increase impedance equally on both channels would be to introduce a resistance or another speaker (in phase) connected in series (doubles the impedance on each channel)
You could probably check it by turning balance over, connecting the pair in series on that one channel, and testing. You need both in phase, otherwise you will get a bass cancelling effect. You can listen with speakers facing together and swap 2nd speaker wire pair around until you hear solid bass. If out of phase, bass will cancel.
Yes,that's a problem with the amp not the speakers.If you connect more speakers in series you will only reduce the output in watts,so to boost the output you will have to connect them in parallel.Which still leaves you with the original problem anyway,and the repair shop 'solution' just defies logic if they mean that's why the amp is cutting-out?

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