Boss RT-20

Rotary Sound Processor

Leslie - the heavy box with the rotating speakers - is indispensable for the Hammond organ, and many guitarists have also incorporated it in unforgettable sounds and hits: The Beatles, Carlos Santana, Jeff Beck and many others.

A real Leslie is heavy, expensive and rare. A simulation is small, light and affordable: Here comes the BOSS RT-20 Rotary Sound Processor, a further development of the Roland Leslie Simulation (from the Roland Organ VK-7, VK-77 and VK-8), which was highly praised by many Hammond players for its authentic sound.

In terms of sound, features and price, the RT-20 will leave the few competitors behind the Leslie simulations far behind.

  • Authentic Leslie simulation by COSM modelling
  • Four sound modes
  • Integrated overdrive for guitar or keyboard
  • Speed ​​adjustable
  • Large VIRTUAL ROTOR display
  • Effect and direct signal separately adjustable
  • The TIME for reaching the fast speed (acceleration time) or the switching back to the slow speed (deceleration) can be set = RISE TIME
  • Stereo inputs and outputs
  • Power supply optional: Available at article nr 409939
No JavaScript? No Audio Samples! :-(

Audio Examples

 
0:00
  • Blues Off On
  • Clavinet Off On
  • Funk Off On
  • Hazey Off On
  • Indie Off On
  • Organ-1 Off On
  • Organ-2 Off On

Further Information

Effect Types Leslie Simulator
42 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.6 / 5.0
  • handling
  • features
  • sound
  • quality
18 written ratings Read all reviews
Total
handling
features
sound
quality
Wonderful rotary pedal for guitar and keyboard!
14.08.2014
Really fun pedal that makes wonders with organ sounds, and magic with guitar.
The only thing I would have liked added would be some kind of EQ possibilities, then everything would be on a 5 grade.
Easy to use and operate. The lights are a little bright, but it makes it easy to see status.
The different rotary styles really make a difference and all of them are useful for different songs and instruments.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Total
handling
features
sound
quality
Kinda in Love
08.01.2017
First off i just wanna say that I'm nether a big fan of Boss pedals or Pink Floyd so one would assume this particular pedal would not be up my street.

I came across it by chance on Youtube while checking out another pedal but was captivated by the spacey sound of this one (for anyone interested just type in 'double muff rotary ensemble demo').

I love it more than any other of my effects right now. I haven't gone through all the settings in detail but so far I Iove just the core rotary sound you get from hitting the right (slow/fast) switch. With a few tweaks to the settings I could imagine dialing in that sweet George Harrison 'Let it Be' solo sound. As mentioned this pedal is popular with many Pink Floyd fans as Gilmour used Leslie speakers extensively throughout his career which this pedal attempts to emulate.

Also, have to mention the epic visual effect at the top of the pedal which represents the rotary speed. I like to play with the light off in the room just to see how cool it is.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
235 €
Free shipping incl. VAT
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Share This Product
Your Contacts
Phone: +49-9546-9223-20
FAX: +49-9546-9223-24
Test Report
 
 
 
 
 
Online Guides
Modulation Effects Pedals
Modulation Effects Pedals
The term ‘modulation’ in its broadest sense covers a range of sonic effects, from the subtlest chorus to ear-bending ring modulation.
 
 
 
 
 
test results:
Offers include 21% Belgium VAT and are valid as long as stocks last. Shipping costs to Belgium are 2,50 EUR, free shipping on orders above 49 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
(2)
Recently Viewed
Casio PX-S3000 BK Privia

Digital Piano 88 Keys with scaled hammer action keyboard (Smart Scaled Hammer Action Keyboard), 700 Sounds, 200 Rhythms, 192-Voice polyphony, Audio and MIDI Recorder, Hammer response, Damper resonance, Split and layer function, Chorus, DSP, Brilliance, Pitch bend, 60 Internal...

Recently Viewed
Moog Sirin

Analogue Desktop Synthesizer Limited edition, Based on the Moog Taurus Sound Engine, Monophonic, 2 VCOs with sawtooth and rectangular waveforms, Oscillator sync, Mixer for VCO signals, Classic Moog Ladder filter (low pass), 2 ADSR envelopes, LFO for VCO and...

Recently Viewed
Arturia MiniLab MKII Deep Black

Arturia MiniLab MKII Deep Black; USB Controller Keyboard; limited special edition with black enclosure and black keyboard; 25 Mini-Keys velocity sensitive; 16 rotary encoders (2 of them are clickable); 2 banks of 8 Pads velocity & pressure sensitive with RGB...

Recently Viewed
Tannoy Life Buds

Wireless in-ear headphones Bluetooth 5.0, DSP-control for precise sound reproduction, Bluetooth profile: HSP / HFP / A2DP / AVRCP, Up to 4 hours of battery life for music playback or phone calls, Up to 120 hours stand-by, Integrated microphone,...

(1)
Recently Viewed
KRK Rokit RP5 G4

Active Near-Field Studio Monitor 5" Glass-aramid woofer, 1" Glass aramid tweeter, Class-D amplifier, Bi-amped, Maximum SPL: Sound pressure level: 104 dB, Frequency range: 43 - 40,000 Hz, Integrated illuminated LC-display, 25 Visual graphic EQ presets (DSP-based), KRK-App with room...

(1)
Recently Viewed
tc electronic BC208 Bass Cab

Electric Bass Cabinet Rated power: 200 watts, Impedance: 8 ohms, Frequency response: 70-4000 Hz ± 3dB, 50-6000 Hz -10 dB, EQuipped with: 2 x 8" Turbo sound custom drivers, Cabinet construction: bass reflex, Compact and lightweight design, Stackable horizontally...

Recently Viewed
the t.mix Rackmix 821 FX USB

the t.mix Rackmix 821 FX, 8 channel rackmixer with built-in USB audio player and multi-effects, 3 band equalization, + 48V phantom power and pan per channel, 2 aux sends (1x FX 1x Aux), main out with XLR or jack possible,...

Recently Viewed
Positive Grid BIAS FX 2 Standard

Guitar Effect Plugin Download Guitar Match technology simulates specific guitars so that they can be played with conventional guitars, Includes Guitar Match Essential with 2 guitars, 45 effect pedals and rack processors, and 30 amps, 60 Factory presets to...

Recently Viewed
Stairville Tour Stage Platform 1,5x1m ODW

Stairville Tour Stage Platform 1.5x1 m ODW, Outdoor Stage Platform / Podest without legs, Dimensions: 150 x 100 x 9 cm, Finish: Weather resistant plywood panel with HEXA "anti-slip" coating, maximum load: 750 kg/m², Insert for legs: 60 x 60...

Recently Viewed
K&M 18820 Omega Pro Black

Keyboard Table Compact tubular steel construction, Large, round parquet protectors, Snap-in clamping screws for easy height adjustment, Support arms individually adjustable, Foldable legs, Maximum load capacity: 80 kg, Load capacity optional second level: up to 25 kg, Height: 600...

Recently Viewed
Dreadbox Hypnosis

Dreadbox Hypnosis; multi-effect processor; three independent effects: analog BBD chorus/flanger incl. LFO with three waveforms, digital delay with three modes and freeze function, analog spring reverb with three reverb spirals and pitch modulation; input and output levels can be adjusted...

(1)
Recently Viewed
KRK Rokit RP7 G4

Active Studio Monitor Fitting: 6.5" Glass aramid woofer and 1" glass aramid tweeter, Output: 145 Watt, Class-D amplifier, Bi-amped, Transmission range: 42 - 40000 Hz, Maximum sound pressure level: 110 dB (SPL), Integrated illuminated LC-display, 25 Visual graphic EQ...

Give Feedback
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.