GRAPH TECH GHOST User Manual

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Thank you for purchasing the GHOST™ Modular Pickup System. We have
worked long and hard developing and testing this system to give you the best
acoustic sound available today. We are sure that you will enjoy playing and per-
forming with it as much as we do!
The principle behind the GHOST Modular Pickup System is simple but the
results are truly amazing. By strategically implanting a custom engineered piezo
pickup inside a set of Graph Tech saddles then processing the signal through
the Acousti-Phonic Intelligent Pre-amp, the natural acoustics of your guitar are
captured. Feedback and mic placement problems associated with an amplied
acoustic guitar are eliminated, and you can play as hard as you like without
overload.
This guide describes installing the GHOST Modular Pickup System and the
GHOST Acousti-Phonic Intelligent Pre-amp in your guitar.
• The GHOST Modular Pickup System consists of custom engineered piezo pick-
ups individually calibrated and supplied as a matched set. They are available in
a variety of different saddle styles. Refer to the Graph Tech catalog for the correct
saddle to suit your guitar before proceeding.
• The GHOST Acousti-Phonic Intelligent Pre-amp is an integral part of the GHOST
sound. It processes the signal from the pickups to create a pristine acoustic tone,
and provides the perfect interface to a console or guitar amp. Through an intelli-
gent stereo jack the Acousti-Phonic Intelligent Pre-amp provides both the original
magnetic pickup signal and the GHOST acoustic signal, or a continuously variable
blend of the two. You should have obtained either the Guitar or Bass version of the
Acousti-Phonic Intelligent Pre-amp to suit your instrument.
• The installation of the GHOST system can be achieved without the use of the
Acousti-Phonic Intelligent Pre-amp, however this is not recommended. The
preamp was designed to enhance the overall tonal quality of the GHOST system
while allowing for intelligent switching between mono and stereo.
Welcome to the World of Graph Tech!

GRAPH TECH GHOST Specifications

General

Brand	GRAPH TECH
Model	GHOST
Category	Amplifier
Language	English

Summary

Welcome and Introduction

GHOST Modular Pickup System Introduction

Overview of the GHOST Modular Pickup System and its benefits.

Acousti-Phonic Intelligent Pre-amp Introduction

Overview of the Acousti-Phonic Intelligent Pre-amp's role in the system.

Parts List

GHOST Pickup System Components

List of parts included in the GHOST Pickup System.

Acousti-Phonic Intelligent Pre-Amp Components

List of parts included for the Acousti-Phonic Intelligent Pre-Amp.

GHOST System Overview

System Component Diagram

Diagram illustrating the GHOST system components and their connections.

STEP 1: Installing the GHOST Pickups

Strat® Style Instruments Installation

Instructions for installing GHOST pickups on Strat® style guitars.

Tele® Style Instruments Installation

Jazz®/Precision® & Les Paul® Installation

STEP 2: Installing the Stereo Jack

Stereo Jack Installation Steps

Procedure for installing the new stereo jack into the guitar.

STEP 3A: Wiring without a Pre-Amplifier

Passive Volume Potentiometer Wiring

Wiring instructions for using a passive volume control without the pre-amp.

Passive Wiring Diagrams

Wiring Diagrams for Different Guitar Styles

STEP 3B: Installing the Acousti-Phonic Pre-Amp

Pre-Amp Installation Steps

Instructions for physically installing the Acousti-Phonic Intelligent Pre-amp.

Wiring with the Acousti-Phonic Pre-Amp

Pre-Amp Wiring Requirements

Details on potentiometer types and connection requirements for the pre-amp.

Acousti-Phonic Pre-Amp Connection Details

Pre-Amp Pin Functions and Schematic

Explanation of pre-amp pin functions and standard installation schematic.

Six-Pin Connector Wiring

Wiring with Six-Pin Connectors

Instructions for connecting GHOST system using six-pin connectors.

Pre-Amp Wiring Diagrams

STEP 4: Optional Mid Boost Switch

Mid/Dark Switch Wiring

Instructions for installing and wiring the optional Mid Boost Switch.

STEP 5: Optional QuickSwitch

Quick Switch Wiring

Instructions for installing and wiring the optional QuickSwitch for sound selection.

STEP 6: Auxiliary Power Out

Auxiliary Power Out Function

Information on using the pre-amp's auxiliary power output.

STEP 7: Setup

Action and Intonation Setup

Guide to setting guitar action and intonation after installation.

STEP 8: Playing

Playing the GHOST System

Guidance on playing the guitar with the GHOST system installed.

Connecting to Amplifiers

How to connect the GHOST system to different types of amplifiers.

Output Adjustment and Batteries

Output Gain Adjustment

Adjusting the output gain of the Acousti-Phonic Pre-amp.

Battery Information and Replacement

Details on battery life, type, and replacement recommendations.

Installation Tips and Reference

General Installation Tips

General advice and best practices for installing the GHOST system.

Wire Color Codes

Color coding for pickup and pre-amp installation wires.

Potentiometer Contact Key

Key to identify potentiometer contacts for wiring.

Optional Acoustic Tone Control Schematic

Contact Us and Warranty

Contact Information

Contact details for Graph Tech Guitar Labs for support and inquiries.

Warranty Details

Information regarding the warranty coverage for the GHOST Pickup System.