Up for sale, a 1987 Scholz Research & Development, Inc. Rockman Stereo Chorus/Delay in excellent condition and in perfect working order. While Tom Scholz is best known as the brains and multi-instrumentalist behind the band Boston, his Rockman effects have acquired a legendary status of their own, considered to be some of the finest analog effects units produced in the ‘80s and contributing significantly to the overall sound of the era. Prior to Boston’s success, Scholz received two engineering degrees from MIT, and this Rockman Stereo Chorus/Delay offers a pristine signal path with lush chorus and natural-sounding delay.

At the heart of this unit is the much-lauded MN3005 BBD chip, favored in countless Chorus/Delays for its organic analog warmth and musicality. Rather than two units operating in tandem (as with most Chorus/Delays), this half-rack is actually a Chorus or a Delay, intentionally designed with the two modes separated to ensure the Rockman’s versatility and functionality with other effects: a “complete space-maker,” as Scholz says. The Chorus side of the effect yields an instant dose of pure ‘80s chorus goodness, with a Sweep Speed oscillator to control the depth of the effect and a “Long Chorus” button for particularly broad sounds. The Delay times range from 20-60ms in Short mode and 50-200ms for the Long Mode, with a Feedback control that extends into self-oscillation. There are Headroom indicator LEDs, and a Drive Level switch to toggle between -6/0/+10dB. The Stereo functionality is achieved via the Output Mix control section, which enables tweaking of the width of the stereo image, all the way from Mono to Wide Stereo. Finally, there are three separate footswitch inputs for Bypass, Mix A/B, and Chorus/Delay.

There are only a few minor scratches and scuffs on the unit, with clean silkscreen graphics and all original sliders and buttons present. The serialized label is stamped May 15, 1987.