JH-1 Jackhammer

The JH-1 Jackhammer delivered aggressive high-gain distortion with extensive tone control. The contour feature enabled dramatic EQ shaping for varied distortion characters.

Multiple controls for Gain, Bass, Contour, Treble, and Volume. The Jackhammer provided more gain than the Guv'nor while maintaining Marshall's approach to distortion voicing.

The aggressive character suited metal and hard rock applications. The contour control proved particularly useful for dialing in scooped metal tones or mid-forward rock crunch.

True bypass switching. Marshall's continued evolution of their distortion platform for players needing serious gain.