Strymon OB.1 User Manual

USER MANUAL

Optical Compressor

& Clean Boost

®

OB.1 - optical compressor & clean boost User Manual

Front Panel

BOOST LEVEL: Varies the
amount of boost when the

OUTPUT: Controls the overall
output level. Attenuation is
possible at low settings as
well as overall boost at higher
settings.

clean boost circuit is active.
TIP: Turn to maximum to
engage soft clipping.

®

COMP: Sets the threshold of the
optical compressor circuit. Set
below 50% for more transparent
settings and above 50% for more
sonically apparent compression.
Turning the COMP knob to zero
effectively takes the compressor
out of circuit.

OUT

9VDC

-

+

BOOST LEVEL

treble

mid

flat

Optical Compressor

& Clean Boost

IN

COMPOUTPUT

BOOST SHAPE:

Varies the frequency
response of the
clean boost circuit.
Treble boost, mid
boost and full
flat frequency
response curves
are provided. TIP:
Try the treble boost

BYPASSBOOST

with humbuckers
for biting solos or
the mid boost to add
girth to single coil
pickups.

®

BOOST FOOTSWITCH:
Engages the clean boost. The clean boost
is post compressor. TIP: to use the clean
boost without any compression turn the
COMP knob to zero to take the compressor
completely out of circuit

BYPASS FOOTSWITCH:
Engages and disengages effect. Bypass is
a true bypass circuit with mechanical relay

switching. LED on indicates that the effect
is engaged.

pg 2

OB.1 - optical compressor & clean boost User Manual

Rear & Bottom Panels

®

High impedance
mono input.

Low impedance
mono output.

Standard 9V DC center
negative power input.
Only 20mA available
current required.

The bottom plate can also be removed to access the battery
and internal DIP switch. The DIP switch can be set to alter the
frequency response of of the treble and mid boost functions. It’s
operation is explained on the next page.

pg 3