Rockbox 100

Rockbox 100

The Scholz R&D Rockman X100 is the headphone guitar amplifier designed by Tom Scholz of Boston. It produces a polished, heavily compressed tone with built-in stereo chorus and echo, and it became a defining direct-recording sound of the 1980s. The usual advice still stands: for the most authentic result, use it without a separate amp or cab block, though it can be combined with either.

Fender Model Guide

Produces polished, compressed tones with built-in ambience and modulation options. Excels at layered rhythm sounds, direct recording and expansive lead textures. For most authentic results, use without an amp or cab block, but feel free to experiment.

  • MODE Clean 2, Clean 1, Edge, Distortion
  • VOLUME Adjusts overall signal output strength.
  • INPUT GAIN Adjusts overall signal input strength, resulting in more compression.
  • EFFECTS Controls which stereo chorus and stereo echo effects are active. Options are: Off, Chorus, Echo, Chorus + Echo.

From the Fender Tone Master Pro Model Guide

Based on
Scholz R&D Rockman X100
Effect type
Distortion