User Manual

Setup and Operation
3. Ensure the power switch is set to the OFF position and the STANDBY
SWITCH is set to the STANDBY position. Connect your TUBE ENGINE
to your AC mains supply using a 3 pronged AC power chord.
4. Put the power switch in the ON position and wait for at
least 30 seconds for the tubes to warm up. This will help to
extend tube life. Standby can also be used to keep the
tubes warm when taking a break.
5.Put the STANDBY SWITCH in the ON position to operate the
amplier. Adjust the HI/LOW SWITCH, VOLUME and PRESENCE
controls to your liking.
05
30 seconds