Tech 21 RotoChoir

Submitted on January 6, 2011

The Roto Choir effect from Tech 21 celebrates the swirling glory of a vintage rotating speaker cabinet. With its specifically formulated SansAmp technology, it delivers the entire signal chain, from the original tube power amp to the low-frequency speaker and high-frequency horn, to the microphone used to capture it. This studio-quiet, road-worthy pedal can be used with guitar as well as keyboards, synths, and vocals, and to record direct.

The Roto Choir features a Fast/Slow footswitch which allows you to ramp up, slow down, or even stop the rotating speaker. There’s a dedicated Top Speed control to custom set the rotor speed and a Position control to adjust the virtual mic closer to or further from the horns. Other controls include Drive to adjust the amount of compression, harmonics and grit, active dual-band EQ, and Level. The Biamped switch allows you to change to single speaker mode and there’s a Speaker Sim switch for direct recording. Stereo output, buffered bypass, and a silent-switching, custom footswitch actuator completes the package.