Before we get to the checklist, remember these basic rules:

Your power amp should always be the last thing turned on and the first thing turned off.
Never turn your preamp on or off while your power amp is on. Never connect or disconnect your speakers while your amp is on.

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Before you begin: Please note that most customers will NEVER need to refer to this page. Making adjustments to the Adaptive AutoBias board when none are needed may have an adverse effect on the sonics of your amp. Also, if you make a mistake and turn the AutoBias setting too high, you may cause severe damage to your tubes or even the amplifier, and such an event would void your warranty.

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