Quote:
Originally Posted by iove75
Experiment but I use the 4 ohm tap. The autoformer is an impedance matching device and most ML products are rated for 4 ohm. It dips down to .7ohm at 20khz. There is very little musical content at that frequency to cause a problem. I am using MC402 to drive ML Vantages in a much larger room in a mixed HT/2-channel setup.
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Even though I can only hear to about 10K at my age I found the ML Summits as dull as day old dog dung when driven by the MC402 compared to a direct-coupled amp. If you have a 2 ohm tap on your amp it may be slightly better at the high end but you pay with looser bass. More power, such as the MC501 also seemed to help but not enough. You just can't impedance match to 0.7 ohms with a transformer.