Revv Owner’s Manual - 19
Some examples:
2 - 8 ohm cabinets
would be run to the amplifier (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 amplifier (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 parallel 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 higher impedance (Ex:
8 Ohms). However the opposite will possibly cause damage to the
output transformer or other components & it is suggested that the
amplifier never be run into a lower load than what the amplifier is set to
when hooking up speakers in different configurations.
Note: Depending on the power tubes used, this amplifier 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.