If you are looking to unlock the full sonic potential of your rig, the JHS Clover Preamp/Boost is your new secret weapon. Based on the legendary 1980s Boss FA-1 FET Preamp—famously used by The Edge of U2 to forge his iconic guitar tones—the Clover takes that vintage magic and expands it into an incredibly versatile tone-shaper. Whether you want to add glass-like clarity to single-coils, tame muddy humbuckers, or drive a tube amp into sweet, natural saturation, this pedal delivers rich harmonically detailed tone with up to +24dB of clean gain on tap.

Built with rugged, gig-ready metal construction and premium components right in Kansas City, the Clover is designed to handle demanding stage and studio use. JHS enhanced the original design by adding a Mid control, a 3-mode rotary selector (Full EQ, No Mid, and No EQ), and a side-mounted Low Cut dip switch. These versatile tonal controls allow you to seamlessly tailor your frequency response to match any guitar, amplifier, or pedal combination without adding unwanted harshness.

Beyond electric guitar, the Clover shines as a Swiss-Army-knife solution for acoustic players and bassists thanks to its built-in XLR output with a ground lift switch. You can send a balanced signal directly to a front-of-house PA or recording interface while simultaneously driving an amplifier onstage. From sweetening your clean tone to acting as a powerful acoustic DI box, the JHS Clover is an essential addition to any setup.

Please feel free to reach out to our knowledgeable sales staff with any additional questions!

Based on a Classic: Faithfully reproduces and expands upon the legendary BOSS FA-1 FET preamp circuit used on classic recordings.

Massive Clean Boost: Provides up to +24dB of gain to push tube amps, overdrive pedals, or balance low-output pickups.

Versatile EQ Control: Features Active Bass, Mids, and Treble controls alongside a 3-way mode switch (Full EQ, No Mid, No EQ) and Low Cut switch.

Dual Output Options: Equipped with standard 1/4" output and a balanced XLR output with ground lift for direct connection to soundboards or interfaces.

Multi-Instrument Solution: Outstanding tone-shaper and preamp box for electric guitars, acoustic guitars, and bass instruments.

Pedal Type: Preamp, EQ, Boost

Analog/Digital: Analog

Circuit: FET Preamp (Based on Boss FA-1)

Inputs: 1 x 1/4"

Outputs: 1 x 1/4", 1 x XLR (with Ground Lift switch)

Gain: Up to +24dB

EQ Controls: Bass (+/- 15dB at 270Hz), Mids (+/- 15dB at 1.3kHz), Treble (+/- 15dB at 10kHz)

Switches: 3-Way EQ Mode Rotary Switch (Full EQ, No Mid, No EQ), Low Cut Switch (-3dB at 212Hz), Ground Lift Switch

Bypass Switching: Buffered Bypass

Power Source: 9V DC power supply required (center negative, sold separately)

Power Usage: 45.5mA

Dimensions: 2.6" x 4.8" x 1.6"