Krell Industries MDA-300/500 Stereo Amplifier User Manual


 
Q. After the amplifier is on for about one hour it be-
comes very hot. Is this normal?
A. Yes. Due to the high bias design of the MDA-300/500
it will become quite warm. After approximately 1 hour
the amplifier will be at its optimum operating tempera-
ture. If the amplifier should-have a severe temperature
inbalance between the. left and right channel, unplug the
unit and call your aut~0rized dealer or Krell.
Q. I tried a new preamplifier in my audio system and
when I turned the unit on the MDA-300/500 shut off. Is
the amplifier defective?
A. More than likely the amplifier is not defective. When
connecting components you should always keep the
amplifier off. Tile amplifer sensed a bad input signal and
slaut off, protecting itself and the speakers.
There also could tiave been a bad cable connection or
excessive DC offset coming from the output of the pre-
amplifier. Before turning tile amplifier on, check the
input cables. If that doesn’t help, bring the preamplifier to
the dealer for testing.
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