Eden WT550 - Manual (Page 8)

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The cooling system also features a high temperature thermal safety system,
which will activate an AGC (Automatic Gain Control) circuit if the
operating temperature goes above 200 degrees F. This circuit will
automatically turn down the output of the system in the event of overheating.
It will automatically reset itself to full power as soon as the unit cools down
to a safe operating temperature.
NOTE: the D.I. will continue to operate normally even when the amplifier is
in thermal safety mode. Only the stage sound will be lost.
IMPORTANT NOTE: Excessive heat is a Very Bad Thing and can
result in severe damage to your amplifier. DO NOT bypass or
disconnect any part of your thermal safety system. Doing so will
immediately void your warranty!
OPERATING INSTRUCTIONS
Mechanical and Thermal Issues – During operation, your amplifier should
always be placed away from sources of moisture or heat. Care should be
taken not to obstruct the ventilation holes on the bottom and sides of the
unit. In the event of thermal shutdown, you should eliminate the cause of the
thermal problem (poor ventilation, speaker loads lower than 2 ohms PER
CHANNEL) immediately. The supplied rack ears can be used to install your
amplifier in a conventional equipment rack for protection during
transportation.
Electrical Connection – The WT550 requires at least 10 Amps of correctly
wired alternating current for proper operation. Providing less than 10 Amps
of power may result in poor amplifier performance, so it’s probably not a
good idea to plug all of your band’s gear into a single wall outlet.
Connections – All instrument-level input connections (everything but the
speakers) should be made with high quality shielded cables. The use of
speaker cables for input connections will result in excess noise. Speaker
connections should be made with high quality 16 gauge or heavier
unshielded speaker cables. We recommend 10 or 12 gauge cables. The use
of shielded line or instrument cables for speaker connections can
damage your amplifier. The speaker cable should be as short as possible.