Premium Electronics Upgrade
We do not simply fix guitars. We bring them back to their best.
Every instrument has its own character, history, and potential. At Fret & Grain, we approach every repair and setup with the same attention to detail, whether it is a small adjustment or a complete overhaul. Thoughtful workmanship, precise measurements, and genuine passion go into every guitar that leaves our bench.
PRS-STYLE GUITAR WITH 2 HUMBUCKERS - HH
1 VOLUME • 1 TONE • COIL SPLIT PUSH-PULL • 3-WAY TOGGLE SWITCH
A complete electronics upgrade using premium-grade components, carefully selected for reliability, tonal performance, and long-term durability.
COMPONENTS & UPGRADES
Bare Knuckle 550K 10% Taper Potentiometer × 1 - Volume
Bare Knuckle 550K 30% Taper Push-Pull Potentiometer × 1 - Tone
Treble Bleed Circuit with Resistor × 1 - Helps maintain high-frequency clarity when rolling down the volume
Bare Knuckle 0.022µF Mineral Oil Tone Capacitor × 1
Switchcraft 3-Way Toggle Switch × 1
Switchcraft Output Jack × 1
22 AWG 19-Strand Silver-Plated Copper Core Teflon Wire × 1
Premium-Grade Solder & Flux - Used throughout the installation
COIL SPLIT PUSH-PULL
The tone push-pull potentiometer provides humbucker coil-splitting, allowing the selected humbucker configuration to switch between full humbucker and single-coil operation.
This provides additional tonal versatility with a brighter, leaner and more articulate sound when the coils are split.
BUILT FOR PRECISION
Every connection is professionally soldered, neatly routed, and carefully inspected to ensure reliable signal transmission, consistent switching, and optimal performance from your pickups and controls.
SGD 390
PRS-STYLE GUITAR WITH 2 HUMBUCKERS - HH
1 VOLUME • 1 TONE • 3-WAY SWITCH • SERIES / PARALLEL VIA PUSH-PULL POTS
A complete electronics upgrade with independent Series / Parallel switching for both humbuckers, using premium-grade components carefully selected for reliability, tonal performance, and long-term durability.
COMPONENTS & UPGRADES
Bare Knuckle 550K 10% Taper Push-Pull Potentiometer × 1 - Volume
Bare Knuckle 550K 30% Taper Potentiometer × 1 - Tone
Treble Bleed Circuit with Resistor × 1 - Helps maintain high-frequency clarity when rolling down the volume
Bare Knuckle 0.022µF Mineral Oil Tone Capacitor × 1
CRL or OAK 3-Way Lever Switch × 1
Switchcraft Output Jack or Barrel Stereo Output Jack × 1
22 AWG 19-Strand Silver-Plated Copper Core Teflon Wire × 1
Premium-Grade Solder & Flux - Used throughout the installation
BUILT FOR PRECISION
Every connection is professionally soldered, neatly routed, and carefully inspected to ensure reliable signal transmission, consistent switching, and optimal performance from your pickups and controls.
SERIES / PARALLEL PICKUP SWITCHING
POSITION 1 - BRIDGE HUMBUCKER
Bridge in Series - Full, thick and high-output humbucker tone
Bridge in Parallel - Cleaner, brighter and more open tone
POSITION 2 - BRIDGE + NECK
Both in Series - Full and powerful combined humbucker tone
Bridge Series + Neck Parallel
Bridge Parallel + Neck Series
Both in Parallel - Cleaner and more articulate combined tone
POSITION 3 - NECK HUMBUCKER
Neck in Series - Warm, thick and full humbucker tone
Neck in Parallel - Cleaner, brighter and more articulate tone
INDEPENDENT PUSH-PULL CONTROL
The two push-pull controls provide independent Series / Parallel switching for each humbucker:
Volume Push-Pull - Neck pickup Series / Parallel
Tone Push-Pull - Bridge pickup Series / Parallel
This provides up to 8 possible pickup configurations, combining the traditional 3-way pickup selection with independent Series / Parallel switching for both humbuckers.
Series mode is the standard humbucker configuration, delivering a fuller, thicker and higher-output tone with increased midrange presence and stronger sustain.
Parallel mode produces a cleaner, brighter and more open tone with reduced output and greater articulation. Unlike coil-splitting, parallel wiring keeps both coils active and retains hum-cancelling operation.
This provides additional tonal versatility without changing the pickups themselves.
SGD 410
PRS-STYLE GUITAR WITH 2 HUMBUCKERS - HH
1 VOLUME • 1 TONE • SUPER 5-WAY SWITCH
A complete electronics upgrade using premium-grade components, carefully selected for reliability, tonal performance, and long-term durability.
COMPONENTS & UPGRADES
CTS B500K Potentiometer × 1 - Volume
CTS A500K Potentiometer × 1 - Tone
Treble Bleed Circuit with Resistor × 1 - Helps maintain high-frequency clarity when rolling down the volume
Bare Knuckle 0.022µF Mineral Oil Tone Capacitor × 1
24-Lug Super 5-Way Lever Switch × 1
Switchcraft Output Jack or Barrel Stereo Output Jack × 1
22 AWG 19-Strand Silver-Plated Copper Core Teflon Wire × 1
Premium-Grade Solder & Flux - Used throughout the installation
BUILT FOR PRECISION
Every connection is professionally soldered, neatly routed, and carefully inspected to ensure reliable signal transmission, consistent switching, and optimal performance from your pickups and controls.
PICKUP SWITCHING WIRING OPTIONS
Choose 1 configuration below:
OPTION 1 - COIL SELECTION
Position 1 - Bridge Humbucker in Series
Full, thick and powerful bridge humbucker tone.
Position 2 - Bridge North Single Coil
Cleaner, brighter and more articulate bridge single-coil tone.
Position 3 - Bridge North + Neck South Single Coils
Both selected coils combined for a clear, balanced and open tone.
Position 4 - Neck North Single Coil
Brighter and more articulate neck single-coil tone.
Position 5 - Neck Humbucker in Series
Warm, full and powerful neck humbucker tone.
OPTION 2 - SERIES / PARALLEL
Position 1 - Bridge Humbucker in Series
Full, thick and high-output bridge humbucker tone.
Position 2 - Bridge Humbucker in Parallel
Cleaner, brighter and more open than Series mode.
Position 3 - Neck + Bridge Humbuckers in Series
Both humbuckers combined in Series for a powerful and full-bodied tone.
Position 4 - Neck Humbucker in Parallel
Cleaner, brighter and more articulate than Series mode.
Position 5 - Neck Humbucker in Series
Warm, thick and full neck humbucker tone.
OPTION 3 - OUTER / INNER COIL CONFIGURATION
Position 1 - Bridge Humbucker in Series
Full bridge humbucker tone with maximum output and thickness.
Position 2 - Outer Coils in Parallel
Neck North + Bridge South coils in parallel for a cleaner and more open tone.
Position 3 - Outer Coils in Series
Neck North + Bridge South coils in series for a fuller and more powerful combined tone.
Position 4 - Inner Coils in Parallel
Neck South + Bridge North coils in parallel for a bright, articulate and balanced tone.
Position 5 - Neck Humbucker in Series
Full neck humbucker tone with warmth, thickness and sustain.
SUPER 5-WAY VERSATILITY
The 24-lug Super 5-Way Lever Switch allows the switching configuration to be customised according to your preferred pickup combinations.
Choose from individual coil selection, Series / Parallel switching, or outer / inner coil combinations to create a highly versatile HH setup with significantly more tonal options than a standard 3-way switch.