Boffin FX Push-Pull Onboard Clean Boost Preamp 20dB 500K for Humbuckers & High-Gain

Turn Your Humbuckers into a High-Output Powerhouse.

Unlock the hidden ceiling of your guitar’s performance. The Boffin FX 20dB Onboard Push-Pull Booster (2025 Edition) is a premium MOSFET-based preamp that fits directly into your guitar's control cavity. Designed specifically for humbucker-equipped guitars, this 500K version preserves the full frequency response of your pickups while giving you a massive +20dB of gain on demand.

Whether you're looking to push a tube amp into organic clipping or simply need to jump to the front of a heavy mix for a solo, this "stealth" mod does it all—no floor pedals required.

Why the Boffin FX 500K Booster?

• The "Solo Switch": Replace your standard volume pot with our high-quality Alpha Push-Pull. Keep it pushed for your standard rhythm tone; pull it for an instant, massive volume leap.
• Tailored for Humbuckers: The 500K resistance ensures your high-end remains open and aggressive, preventing the "dark" or muffled sound often caused by lower-value pots.
• Onboard Gain Calibration: Use the internal trimpot to dial in your "sweet spot." Set it for a subtle 3dB lift or a full-throttle 20dB blast.
• Treble Bleed Ready: Our 2025 redesign features dedicated soldering pads, making it easier than ever to install a treble bleed circuit and keep your tone crisp at lower volumes.

Easy DIY Installation

We know you’d rather be playing than soldering. Our minimal-solder design features a pre-wired output harness to streamline your upgrade.

• Integrated Power Switching: The included TRS (Stereo) Jack acts as your power switch—the 9V battery only engages when your cable is plugged in.
• Compact Footprint: Engineered to fit into tight "Les Paul" style control cavities without routing.

Technical Specifications

• Potentiometer: Premium Alpha 500K (Long Shaft for Humbucker/Carved Top compatibility).
• Gain Range: Adjustable 0dB to +20dB (via internal trimpot).

• Dimensions:
• Shaft: 3/8" (9.4mm) Threaded Diameter | 1/2" (12mm) Shaft Height.
• Board: Compact 1-1/4" (32mm) x 1-1/4" (32mm).

• Included Hardware: 9V Battery Snap, 1/4" TRS Output Jack, 12" Wiring Harness, and Tone Pad.

The Boffin FX Guarantee

Hand-assembled and tested in Henderson, Nevada, Boffin FX components are built for the gigging professional. Transform your guitar into a versatile tone machine and experience the freedom of a pedal-free boost.

Ships FAST & FREE from Nevada, USA!