Revv Owner’s Manual3.5
Impedance & Speaker Jacks
The amplifier must always be connected
to a speaker cabinet or load when it is
powered up. The Generator amplifier
can be used with cabinets that provide
a load of 4, 8 and 16 ohms. Because the
amplifier provides 2 speaker jacks, it
can also power 2 cabinets directly from
the amplifier, but the impedance will
need to be set correctly.
Most set ups are simple, one cabinet
plugged into the amp, set the imped-
ance to that marked on the cabinet and
your ready to go! But when it comes to
adding more cabinets to the rig, then
you need to set the impedance correctly
to prevent damage. Most rigs don’t usu-
ally run with more than 2 cabinets so we
won’t go beyond 2 cabinets here.
Some examples:
2 - 8 ohm cabinets would be run to the
Generator (one per speaker jack), the
correct impedance switch setting would
be 4 ohms as they are being run in parallel.
2 - 16 ohm cabinets would be run to
the Generator (one per speaker jack),
the correct impedance switch setting
would be 8 ohms as they are being run
in parallel.
2 - 4 ohm cabinets cannot be run in par-
allel with this amplifier. This will cause
damage.
Note: No damage will result when running
the amplifier set at a lower impedance
(Ex: 4 ohms) into a cabinet rated at a high-
er impedance (Ex: 8 Ohms). But running it
the other way around will possibly cause
damage to the output transformer or
other components and it is suggested that
the amplifier never be run into a lower
load than what the amplifier impedance
switch is set at when hooking up speakers
in different configurations.
Note: Depending on the power tubes used,
the Generator can supply 180 watts+ of
power to the speakers at high volumes, so
it is important to be sure your cabinet can
handle that kind of power, especially when
running KT88/6550 type tubes. If that is
not the case, then it is recommended to
keep your volume levels lower to prevent
speaker damage.
3.7
3.6
FX Loop Connections
The FX loop connections are to be
hooked up to external pedals or effects
units. The Send level will supply the
signal required and needs to be set
accordingly with the send level control.
(See 4.4)
Line Out
The Line Out jack and level control pro-
vide a signal that is taken right off of the
speaker jack. This can be used to run
the Generator into another power amp
for more power. Returning the signal
back is not required as it is a direct out
and not a send signal like on an effects
loop. Use a ¼” mono plug.
Note: Never run the amp without a speak-
er connected to the speaker out jacks! The
line out can never be used without a load
connected to the speaker jacks!
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