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IMPEDANCE SELECTOR: Enables you to match your amp with the impedance of your speaker
cabinet. When using a single cabinet please choose one of the two output sockets. (It does not
matter which one you choose as they are wired in parallel internally)
For a single 4 Ohm cabinetsPlease set the impedance selector to 4 Ohm
For a single 8 Ohm cabinetsPlease set the impedance selector to 8 Ohm
For a single 16 Ohm cabinetsPlease set the impedance selector to 16 Ohm
For a pair of 8 Ohm cabinetsPlease set the impedance selector to 4 Ohm
For a pair of 16 Ohm cabinets Please set the impedance selector to 8 Ohm
EFFECTS LOOP – Your amp is equipped with a 12AU7 buffered - low impedance - series effects
loop. The effects loop can be switched on and off using the footswitch. When switched off the
effects loop is true-bypassed. By using the 12AU7, the effects loop is as neutral as ‘tube-
technically’ possible. But as with any electronic component added to the circuit there will be a
slight change in tone. It depends very much on which kind of guitar is being used whether this
sound change is audible or not. Please keep in mind that probably the most change in sound
will be caused by the used effect(s). For a proper use of the effects loop on channel 2 it is
important to set the ‘channel 2 master’ between 12 and 15 o’clock.
SEND JACK: This is where you plug the INPUT of your Effect(s). Use a high quality shielded
guitar cable.
RETURN JACK: This is where you plug the OUT of your Effect(s). Use a high quality shielded
guitar cable.
FOOTSWITCH: The 3 button footswitch is an integral part of your amplifier. This means you
need the footswitch to switch channels, effects loop and (SVC) volumes. When the footswitch
is disconnected the amp switches automatically to: Channel 2, Effects loop ‘on’, Volume 2.
PLEASE NOTE: The lightning flash with arrowhead symbol, within an equilateral triangle, is
intended to alert the user to the presence of insulated ‘dangerous voltage’ within the product’s
enclosure that may be of sufficient magnitude to constitute a risk of electric shock. Terminals
labelled as “Speaker Outputs” must be connected to a speaker cabinet of the designated load
rating using an un-shielded two conductor cable for speaker use at all times during operation.
Never use a guitar cable to connect the amplifier to a speaker as this presents the amplifier
with a ‘capacitive load’. This can cause instability or oscillation which may seriously damage
tubes and/or the expensive output transformer.
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