McGrath Guitars J-Style Thunderhorse 4-String Bass - British Racing Green
Model: J-Style Thunderhorse IV
Production Year: 2026
Weight: 8.86 Pounds
This is a beautiful British Racing Green McGrath Guitars J-Style Thunderhorse bass featuring their new 12-Way Programmable Pickup Selector and Tilt EQ! Hand-painted by Madelyn McGrath in High-Gloss, this finish has a beautiful shimmer to it. The J-Style Thunderhorse body is loaded with Nordstrand Soapbars, the exact set that had so many calling this configuration the best-sounding bass at NAMM 2026
Electronics & Innovation
The pickups route straight to McGrath Guitars proprietary 12-way rotary selector, a feature we are extremely proud of. An accompanying app is currently in development to customize your selector options down to as few as 2 positions if desired.
Next comes McGrath Guitars latest innovation, the McGrath Tilt EQ — a single-pot preamp featuring a tilt EQ and buffer. Turning the center-detented knob one way delivers beautiful, glassy highs, while turning it the other way yields rich, powerful low end. You can easily bypass the active preamp using the push-pull function on the Master Volume. They have also included a passive tone control for ultimate versatility.
This McGrath Thunderhorse is powered by an 18V active system, the electronics are designed with a built-in failsafe. If you run out of battery power during a live set, simply pull the volume knob to bypass the preamp, and the 12-way selector automatically defaults to running all three pickups in parallel passive mode.
