WARNING
· No user serviceable parts inside the amplifier. Do not
open the amp.
· Never use the amp at a high moisture environment or
near liquids.
· The Microtubes 900 can deliver more than 115 dB of
power. Exposure to this level of sound can damage
your hearing. Use proper hearing protection if you will
be exposed.
· The Microtubes 900 can deliver more than 900 Watts.
Be sure that your speaker cabinet is able to deliver that
power. You can reduce the output of the amp by
selecting the 2
Ω
mode on the rear panel (by the
SpeakON output jack).
· Do not cover the vent holes. The Fan and vent holes
are part of the cooling system of the amp. Covering the
vent holes can damage the power amp by overheating
it.
· Don’t use an instrument cable as speaker cable. An
instrument cable is not designed to deliver the type of
power signals sent from the amplifier to the speaker.
TROUBLESHOOTING
· The button controls do not react: check if the
footswitch is connected. If you do not want to use the
footswitch, you have to unplug the cable from the rear
back of the amp.
· The amp does not turn on: check if the power cable is
connected and if you have power on the wall.
· The sound is low: check your speaker cable. Never use
instrument cable.
· The sound is distorted or too high: check if the passive
active switch match your bass.
