FOUR STROKE SERIES USER MANUAL
V1.0
POW
ER
Switches mains power to the amplifier on/off. Connect the supplied IEC/Mains cord
to the AC Mains inlet (rear). The power LED will illuminate when the mains switch is
set to ON.
Set the
VOL.
control to zero/minimum before switching on power to the
amplifier.
IN
P
UT
Use a quality shielded instrument cable to connect your instrument to the
INPUT
jack socket.
The
PAD
switch (-6dB) selects the correct input level for instruments with active or passive
pickups.
V
OL.
Adjusts the overall output volume level.
C
OM
P.
Controls the effect level of the on-board compression circuit. Adding compression can help to
smooth out sound peaks and transients for a fatter, more rounded tone. The
COMP.
LED will
react to your playing and flash blue at higher
COMP.
settings to indicate the gain reduction.
4
B
AN
D
PA
RA
M
ET
RI
C
E
Q
UAL
IS
ER
- / +
CUT/BOOST
Controls the level of the
selected frequency with up to
18dB cut (-) or boost (+)
FREQUENCY
Selects the centre frequency of the
corresponding CUT/BOOST control
B
A
SS
40 – 400Hz
LOW
M
ID
80 – 800Hz
H
IGH
M
ID
250 – 2500Hz
TRE
B
LE
550 – 5500Hz
When a
CUT/BOOST
control is in the 12 o’clock/noon position, the response of the frequency
band is flat with no cut or boost. Sweeping the corresponding
FREQUENCY
control will have
no effect.
The frequency bands crossover to enable even more cut/boost if required. For example, if the
HIGH MID
and
TREBLE
frequency bands are both set to 550Hz, the effect of their
CUT/BOOST
controls is combined.
FOOT
SW
IT
C
H
Connect a latching footswitch (
e.g. Orange FS-1
) to this jack socket to remotely engage/defeat
the compression circuit. Use a standard instrument/tip-sleeve (mono) cable to connect the
footswitch.
FRONT PANEL FEATURES
