User Manual

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Tune-o-matic

This type of bridge has separate screws for intonating each

string saddle, and height adjustment via the bridge’s mounting

screws using a ﬂathead screwdriver (Figure 13). The ball-end

of the strings are either attached to a stop-bar tailpiece, or fed

through the body of the guitar (“string-thru”) and over the bridge.

TonePros

Tune-o-matic

This bridge starts as a stock Tune-o-matic

and adds set-screws to lock down the bridge

and tailpiece (Figure 14). By locking the

bridge and tailpiece to the studs, the tone

and sustain of the instrument is greatly

improved. And since the bridge cannot move,

the tuning and intonation of the guitar will

remain locked in place. Another cool feature is

that when restringing your instrument, you can

cut all the strings off, ﬂip the guitar around while

you work on it and the bridge or tailpiece will stay

locked to the body – no bridge parts will fall off.

Acoustic Bridge

If you have an acoustic or semi-acoustic model, your bridge is made of rosewood like a traditional

acoustic bridge and the bridge is glued to the top of your guitar. Restringing an acoustic bridge is done by

inserting the ball-ends through the back of the bridge and feeding the strings over the top of the saddle,

or inserting the ball-ends through the top of the bridge and holding them in place with the bridge pins.

On this type of bridge, there are no simple string height or intonation adjustment screws. There is only 1

string saddle generally made from bone or plastic, and it is preset into the bridge at the intonation point.

Adjusting string height requires the saddle to be removed and sanded down to achieve the desired string

height. Note: This should only be done by a professional guitar repair technician.

Bigsby

Vibrato

Used on our Xtone guitars, this classic design has

a unique look and sound and is used for manually

creating a true vibrato. A Bigsby is actually the

tailpiece section of the bridge system and mounts

behind a standard Tune-o-matic bridge (Figure 15).

The strings are attached to pins on the bottom inside

section of the back roller, and then fed underneath

the front roller and over the Tune-o-matic bridge as

normal. By pressing the handle the tone of all six

strings will be ﬂatted by approximately one half-tone

if the handle is depressed approximately 1⁄2”. In the

same manner, if the handle is raised approximately

1⁄2” from the normal “at rest” position, all six strings

will be sharped by approximately one-half tone.

Vintage Tremolo

Also referred to as a traditional tremolo, this bridge mounts to the top of the body without a recess route

so the bridge sits on the top of the body. This type of tremolo is used for slight vibrato effects, not heavy

dive-bombing or whammying effects such as a Floyd Rose locking tremolo. A vintage tremolo is mounted

to the body with either 2 or 6 screws located at the front of the bridge. The strings are inserted through

the back of the guitar through the backplate holes and into the block of the tremolo then strung over

each string saddle. On this type of bridge, each saddle height is adjustable and the action height should

be adjusted with the string saddles, not the mounting screws. The tremolo arm is threaded into the hole

on the treble side of the bridge plate.

Figure 13: Tune-o-matic Bridge

Figure 14: TonePros Locking Bridge & Tailpiece

Figure 15: Bigsby Vibrato

RaiseLower

Set Screws

Intonation

Screw

Intonation

Screw

String Saddle

Active Bass EQ Controls

Most of our basses feature an active EQ system with 2 or 3 controls: bass boost/cut, mid boost/cut (only on

a 3-band EQ), and treble boost/cut. All the controls have a center-detent which is the “0” position. Turning

clockwise from that point increases the output of that frequency, while turning counter-clockwise from the center

point decreases that frequency from the signal. Note: Active EQ systems require a 9V battery in order to function.

GUITAR BRIDGES

The bridge on your instrument is located on the body behind the pickups. This is where the ball-ends of

your strings are attached and follow over the string saddles. The string saddles are individually adjustable

for intonating your guitar. On many bridges individual string heights can be adjusted via the saddle,

while on other bridges this is simpliﬁed by having treble and bass side adjustments only. On the latter

type there is a pre-set radius that sets your saddles in a curvature to match the radius of the neck. Some

bridges allow the strings to be locked into place while others such as TonePros allow the bridge and

tailpiece to be locked into place onto the bridge posts.

Bass Boost/Cut

3-Band EQ – Bass (Active)

Master Volume

Mid Boost/Cut

Treble Boost/Cut

Balance

Bass Boost/Cut

2-Band EQ – Bass (Active)

Master Volume

Treble Boost/Cut

Balance

Neck P/U Volume

V / V / T – Bass

Bridge P/U Volume

Master Tone

V / Bal / T – Bass

Master Volume

Balance

Master Volume

Volume / 3-way / Tone

3-way P/U Selector

Master Tone

3-way P/U Selector

on upper horn

V / V / T – Guitar

Bridge P/U Volume

Neck P/U Volume

3-way P/U Selector

KH Series Guitars

Neck P/U Volume

Bridge P/U Volume

Master Tone

Neck P/U Tone

Bridge P/U Tone

3-way P/U Selector

V / T / V / T – Guitar

Neck P/U Volume

Bridge P/U Volume

Figure 12: Control Layouts (For more up-to-date control layouts please visit our website.)