OB1 SERIES USER MANUAL
V1.0
IN
P
UT
Use a quality shielded instrument cable to connect your instrument to the
Input
jack
socket. The
Active/Passive
switch selects the correct input level for basses with active or
passive pickups.
G
A
IN
Controls the level of gain added to the upper harmonics. The
Gain
control works in
tandem with the
Blend
control for a variety of sounds. Higher
Gain
settings produce
dirtier tones, whilst lower
Gain
settings combined with a higher
Blend
setting can be
used for a ‘clean’ boost to cut through the mix.
B
LE
N
D
Controls the amount of upper harmonics and gain blended with the clean signal. The
character of the blended signal is defined by how the
Gain
control is set. Higher
Blend
settings will add extra volume, so you may adjust the
Volume
to compensate if
necessary. With the
Gain
set to minimum, the
Blend
control will have the least effect on
the overall sound.
B
A
SS
Adjusts the low-end frequencies with +/-15dB of boost or cut. Increasing
the
Bass
control produces deeper tones. The EQ controls are located after the
Blend
control for fine control over your overall sound.
M
IDDLE
Adjusts the mid-range frequencies with +/- 15dB of boost or cut. The EQ controls are
located after the
Blend
control for fine control over your overall sound.
TRE
B
LE
Adjusts the high-end frequencies with +/-20dB of boost or cut. Higher
Gain
and
Blend
settings will also add high-end frequencies and harmonics. Reduce the
Treble
to
compensate if desired.
V
OLUM
E
Adjusts the overall volume level.
FOOT
SWI
T
CH
Connect a latching footswitch (
e.g. Orange FS-1
) to this jack socket to remotely
engage/defeat the
Gain
and
Blend
controls. Use a standard instrument/tip-sleeve
(mono) cable to connect the footswitch.
POW
ER
Switches mains power to the amplifier on/off. Connect the supplied IEC/Mains cable to
the AC Mains inlet (rear). The LED will illuminate when the mains switch is set to ON. Set
the
Volume
control to zero/minimum before switching on power to the amplifier.
FRONT PANEL FEATURES
THE OB1-300 & OB1-500 SHARE THE SAME FRONT & REAR PANEL FEATURES
