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Table of Contents
Related Manuals for LHZ LHZ-03
Summary of Contents for LHZ LHZ-03
- Page 1 INSTALLATION INSTRUCTIONS LHZ-03 BASS PREAMP (REV 1.9)
- Page 2 PREAMP CONNECTION VIA DUPOINT™ COMPATIBLE PIN HEADERS The LHZ-03 features pin headers that are compatible with modular EMG controls which makes this preamp easy to install with minimal soldering. The installation kit also ships with several connectors with flying leads that allow this preamp to be connected easily to traditional soldered volume potentiometers and barrel jacks.
- Page 3 BYOP: BRING YOUR OWN POTS! The LHZ preamp is designed to receive input from the existing volume (or volume and blend) pots. This is by design: the LHZ-03 works with any pickups (active, passive, single coil, humbucker, split coil) from any manufacturer.
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Page 4: Preparing For Installation
While the pin headers allow the LHZ-03 to be connected to modular EMG control systems without soldering, most installations require soldering wires to the output barrel jack. If you wish to avoid soldering your existing barrel jack, LHZ does sell prewired Switchcraft 152 barrel jacks as an additional component that will plug directly into the LHZ preamp. - Page 5 Disconnect (cut or unplug) the two wires between the battery and existing preamp. • Disconnect (cut or unplug) the two wires between the volume pot and existing preamp. • Remove the original preamp and its Bass and Treble potentiometers. LHZ-03 INSTALLATION INSTRUCTIONS 5 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 6 STEP 2: SOLDER QUICK DISCONNECT CABLES TO COMPONENTS The preamp ships with cables for connecting the LHZ preamp to components that do NOT have DuPont style quick- disconnect pins. • TRADITIONAL SOLDERED VOLUME POTENTIOMETERS: o Solder wires from the 2-pin connector to the volume pot. This is normally just two wires (BLACK = GROUND and RED or WHITE = SIGNAL) that connect the output of the last volume pot to the INPUT connector on the LHZ.
- Page 7 Connect the output barrel jack to OUTPUT pins located on the right side of the LHZ preamp. (NOTE: Make sure the TIP wire is connected to the T pin!) • Connect the output from the volume (or volume & blend) pots to the IN pins located on the left side of the LHZ preamp. •...
- Page 8 UNPLUG WHEN NOT BEING USED The LHZ-03 preamp requires very little current, so a typical 9-volt alkaline battery can last a year or more with normal use. The preamp is powered whenever a guitar cord is plugged in which enables power to the preamp circuit. This is a standard design used for almost all pre-amps.
- Page 9 (LONG PIN) (SLEEVE TERMINAL) BRIDGE PICKUP BASS & TREBLE PREWIRED TO LHZ BOARD BRIDGE NECK PICKUP TREBLE BASS 100K 100K NECK LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 9 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 10 (EMG ACTIVE) BASS & TREBLE PREWIRED TO BRIDGE PICKUP LHZ BOARD (EMG ACTIVE) TREBLE BASS BOTTOM TOP ROW 100K 100K BLEND LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 10 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 11 BR VOLUME TREBLE BASS BRIDGE PICKUP (EMG ACTIVE) 100K 100K LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT NK VOLUME NECK PICKUP (EMG ACTIVE) LHZ-03 INSTALLATION INSTRUCTIONS 11 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 12 CENTER DETENT CENTER DETENT BRIDGE PICKUP BALANCE CONTROL HAS TWO PIN LAYERS. (EMG ACTIVE) REFER TO EMG BRIDGE PICKUP TO EMG ABCX (B118) DOCUMENTATION. LOWER 3 PIN HEADER ACTIVE BALANCE LHZ-03 INSTALLATION INSTRUCTIONS 12 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 13 9 VOLT SWITCHCRAFT 152B (SHORT PIN) (LONG PIN) (SLEEVE TERMINAL) BASS & TREBLE PREWIRED TO LHZ BOARD TREBLE BASS 100K 100K LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 13 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 14 BLACK wire. BASS & TREBLE 250k PREWIRED TO LHZ BOARD BRIDGE NECK PICKUP (PASSIVE) TREBLE BASS 250k 100K 100K NECK LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 14 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 15 BOTTOM ROW TOP ROW If GREEN ground wire is present, it must be grounded like BLACK wire. 100K 100K BLEND 250k LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 15 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 16 BLACK wire. EMG B159 VOLUME 100K 100K NK VOLUME LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT NECK PICKUP (EMG PASSIVE) EMG B159 VOLUME TO BRIDGE GROUND GROUND BUSS LHZ-03 INSTALLATION INSTRUCTIONS 16 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 17 (EMG PASSIVE) BALANCE CONTROL HAS BRIDGE PICKUP TO EMG ABC (B125) TWO PIN LAYERS. LOWER 3 PIN HEADER ACTIVE BALANCE REFER TO EMG DOCUMENTATION. TO BRIDGE GROUND GROUND BUSS LHZ-03 INSTALLATION INSTRUCTIONS 17 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 18 COIL 1 - : GRN LINEAR TAPER, LINEAR TAPER, EMG HZ COIL 1 + :WHT CENTER DETENT CENTER DETENT COIL 2 + : BLK (Passive) COIL 2 - : RED 250k LHZ-03 INSTALLATION INSTRUCTIONS 18 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 19 COIL 2 + : BLK (Passive) COIL 2 - : RED TREBLE BASS BOTTOM ROW TOP ROW BLEND 100K 100K 250k LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT LHZ-03 INSTALLATION INSTRUCTIONS 19 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 20 TREBLE BASS EMG B159 VOLUME NK VOLUME 100K 100K NECK PICKUP LINEAR TAPER, LINEAR TAPER, CENTER DETENT CENTER DETENT (EMG PASSIVE) EMG B159 VOLUME TO BRIDGE GROUND GROUND BUSS LHZ-03 INSTALLATION INSTRUCTIONS 20 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 21 CENTER DETENT CENTER DETENT BRIDGE PICKUP BALANCE CONTROL HAS TWO PIN LAYERS. (EMG PASSIVE) REFER TO EMG EMG ABC (B125) DOCUMENTATION. BRIDGE PICKUP TO ACTIVE BALANCE LOWER 3 PIN HEADER LHZ-03 INSTALLATION INSTRUCTIONS 21 of 28 Revision 1.9 Last Revised: 10/03/2024...
- Page 22 LINEAR TAPER, BRIDGE SHIELD :SHLD CENTER DETENT CENTER DETENT COIL 1 - : GRN PICKUP COIL 1 + :RED COIL 2 - :WHT (Passive) COIL 2 + : BLK 250k LHZ-03 INSTALLATION INSTRUCTIONS 22 of 28 Revision 1.9 Last Revised: 10/03/2024...
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Page 23: Common Configurations
Traditional 3-conductor jacks will typically have three separate connectors in a different orientation as shown below: IMPORTANT: Note that the connection of the solder tabs are in a different order! Always identify which are the T, R, and S connections before use. LHZ-03 INSTALLATION INSTRUCTIONS 23 of 28 Revision 1.9 Last Revised: 10/03/2024... - Page 24 LHZ-03 INSTALLATION INSTRUCTIONS 24 of 28 Revision 1.9 Last Revised: 10/03/2024...
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Page 25: Wiring Notes
WIRING NOTES Every LHZ-03 is 100% tested before being shipped to ensure the preamp is fully functional and ready for use. As with any electronic devices designed for custom wiring, there is opportunity for installation errors that can adversely impact the operation of the preamp, and in certain cases permanently damage the preamp, pickups, or other components. - Page 26 • Verify connections are fully seated. (Inexpensive connectors from Amazon are prone to poor connections.) • Make sure underside of LHZ-03 is insulated and not making direct contact with metal components or conductive cavity walls. LHZ-03 INSTALLATION INSTRUCTIONS 26 of 28 Revision 1.9...
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Page 27: Trademark Disclaimer
If you have a problem installing or using the LHZ-03 by following the standard installation wiring diagrams, please email us with your questions. While we typically reply within 1 – 2 hours, please be aware it may take several hours to reply. - Page 28 PAGE INTENTIONALLY LEFT BLANK LHZ-03 INSTALLATION INSTRUCTIONS 28 of 28 Revision 1.9 Last Revised: 10/03/2024...
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