Gearwire Labs - Stompbox Walkthrough Video: The Boss RT-20 Rotary Speaker Sound Processor puts out lush rotary speaker sounds. Features four different speaker modes with a different type of overdrive for each and a striking visual display that will leave you gazing in the vicinity of of your shoes.
Features:
Four rotary speaker modes
Rise Time, Effect Level, Direct Level, Balance (Bass and Horn), Overdrive, and Slow and Fast Speed controls
Effect on/off switch and LED, Slow/Fast ramp switch and LED, power indicator LED, visual rotor speed display
1/4-inch stereo and mono input/output jacks; 1/4-inch jacks for expression pedal (optional) and headphones
Guitar/Keyboard Drive Type selector switch
Runs on six AA batteries or a 9V AC adaptor
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