Wiring The Bugera - Bugera 333XL User Manual

Wiring the BUGERA

CAUTION!
Hot! Risk of injury! During use, the valves will
get very hot and high surface temperatures may
be reached at the rear of this unit. To avoid
burning yourself, make all connections while
the unit is still cold.
The BUGERA amplifier has two paralleled LOUDSPEAKER
outputs which are used to connect one or two speaker
cabinets.
If you only connect one speaker cabinet, be sure that the
IMPEDANCE switch is set to match the impedance of the
connected cabinet.
If you want to connect two speaker cabinets, both cabinets
should have to the same impedance. Be sure to have set
the IMPEDANCE switch correctly. In this case, set it to
half the value of one of the cabinets. When using two
16-Ohm cabinets, the switch therefore needs to be set to
8 Ohms; and with two 8-Ohm cabinets, set it to the
minimum impedance of 4 Ohms.
CAUTION: The loudspeakers in the combos are
connected in series. This results in an impedance of
16 Ohms.
en
8
Impedances
Wiring the BUGERA
BUGERA head with a speaker cabinet