Zvex Box of Rock Vertical

Zvex Box of Rock Vertical is Z.Vex Effect’s first distortion pedal, specialized to simulate the everything-on-10- sound of a classic Marshall JTM45 non-master-volume amplifier. This is the same pedal as the original Box of Rock but now in a standard stompbox format.

You may use the Box of Rock with many different amplifiers. Once you’ve set your maximum needed drive on the pedal, use your guitar’s volume control to adjust for the exact amount of distortion you need, all the way down to very clean and clear with most drive settings.

The pedal also contains an extremely high-headroom, unity-to-50X gain booster with nominal input impedance and low hiss. It is very similar to the SHO boost circuit, with refinements to make it sound more like a standard amp input and less glassy.

The boost channel can be used alone or in conjunction with the “distortron engine” channel. The boost channel follows the distortion channel so that the distortion is able to hit your amp harder (at a higher volume) when both switches are engaged, for boosting solos and what-not.

Zvex Box of Rock Vertical demo video