Krell Industries MDA-300/500 manual

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Q. After the amplifier is on for about one hour it be- comesvery hot. Is this normal?

A. Yes. Due to the high bias design of the MDA-300/500 it will becomequite warm. After approximately 1 hour

the amplifier will be at its optimumoperating tempera- ture. If the amplifier should-have a severe temperature inbalance betweenthe. left and right channel, unplug the

unit and call your aut~0rized dealer or Krell.

Q. I tried a new preamplifier in myaudio system and

whenI turned the unit on the MDA-300/500shut off. Is the amplifier defective?

A. Morethan 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 DCoffset comingfrom 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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Contents Page Introduction Table of Contents Unpacking and Assembly Basic Installation and Operation Input and Output Connections Page Amplifier Operation Protection Circuitry Rear Panel Descriptions Questions and Answers Page Specifications THDWarrantyand Service Information Krell Industries