Fishman FULL CIRCLE UPRIGHT BASS PICKUP - User Manual

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Read Me First!
Installation of this product is a simple procedure,
but we recommend this job only if you are an
experienced repair technician.
Requirements
The Full Circle is available in either ¼-20 or 6mm
thread format. Before you install the pickup,
confi rm that the threads in the bridge will match
those on the Full Circle.
Installation
Observe the following
precautions!
• Before you install the Full Circle, confi rm
that the wheels you are about to replace are
lined up well in the legs. The wheels must
be parallel and the posts perpendicular to
the cuts in the legs or the Full Circle may
become mechanically unstable on the
instrument (fi gure 1).
• Fishman Transducers will not be responsible
for damages to the pickup or the instrument
due to improperly installed wheels!
Retro-fi t the Full Circle to a bridge with
installed wheels
The pickup is “hot” on the fl at face of the wheel:
on the side with the non-threaded post. For good
performance it is crucial that the hot side of the
pickup lies absolutely fl at with no gaps or voids
where it contacts the bridge. If necessary, sand the
wood fl at where it contacts the wheel before you
install bridge on the bass (fi gure 1).
When you install the pickup, remove the RCA plug
from the back side of the output jack. Replace the
plug after the pickup is in place.
Setup
Once the wheels are mounted and the bass is tuned
up, thread the white wire through one of the wing
holes in the bridge and hold it in place with one of
the neoprene plugs from the kit (fi gure 2).
Fasten the output jack behind the bridge and
between two adjacent pairs of strings. Then fasten
the RCA plug into the back of the output jack.
Mind the gap!
For good pickup performance, leave a slight gap
between the threaded side of the wheel and the
wood. If you close the gap, the amplifi ed sound will
become choked and muted (fi gure 2).
Height adjustment
Remove the RCA plug from the back of the output
jack so the white wire does not wrap around the
leg as you turn the wheel. Turn both wheels equal
amounts for good contact with the pickup. To pro-
long the life of the pickup, do not pinch the white
wire where it joins the wheel.
Tonal adjustments (fi gure 3)
Turn the wheel so the wire is perpendicular to the
leg and the pickup will have an open, resonant
response.
Turn the wheel 45 degrees so the wire faces one of
the corners and the tone will be somewhat drier and
more focused, with less output.
Fit the Full Circle to a bridge without
wheels
For maximum reliability and performance, the
wheels should be centered precisely within the
taper of the bridge.
Fit the bridge to the bass before you install the
wheels. Note that the wheel with the white wire
belongs under the E string.
There is a subtle tonal difference between “threads
up” and “threads down” position for the pickup.
FULL CIRCLE
INSTALLATION GUIDE
Hot Side
Good Bad
Gap
Figure 1
Figure 2

Summary

Read Me First!

Requirements

Confirms thread format compatibility between bridge and pickup.

Installation

Observe Precautions

Ensures wheels are parallel and posts perpendicular for stability.

Retro-fit to Bridge with Wheels

Ensures hot side of pickup lies flat on the bridge, no gaps.

Setup

Gap Adjustment

Leave slight gap between wheel and wood for clear amplified sound.

Height Adjustment

Turn wheels equally for contact; avoid pinching wire.

Tonal Adjustments

Perpendicular wire for open response, 45 deg for drier tone.

Fit to Bridge Without Wheels

Wheels centered in bridge taper for maximum performance.

Layout Bridge

Draw lines on bridge legs to precisely center wheels.

Drill and Cut Feet

Precise drilling and cutting of bridge feet for wheel installation.

Option 1: Threads Down (Into Feet)

Tap threads into bridge feet for wheel posts.

Option 2: Threads Up (Into Legs)

Tap threads into bridge legs for wheel posts.

Fit Wheels

Ensure wheels fit bridge without gaps or voids.

Fishman FULL CIRCLE UPRIGHT BASS PICKUP Specifications

General

Brand	Fishman
Model	FULL CIRCLE UPRIGHT BASS PICKUP
Category	Music Equipment
Language	English