Description

Used Keeley Java Boost delivers classic Rangemaster-style germanium treble boost in a compact stompbox, perfect for pushing tube amps into rich, harmonically detailed drive. In good condition and ready for stage or studio, it features a single Boost control for quick dialing, true-bypass switching, and standard 1/4" input/output jacks. Runs on 9V DC center-negative power for easy pedalboard integration, adding sparkle, bite, and focused midrange punch to any rig.

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