The Rotary Revolution: Stereo Rotary Cabinet and Tube Saturation in One. Tube Rotosphere® MK II has all the inspirational power of the legendary Leslie® cabinets. It not only puts the response of a tube-powered Leslie at players’ toe-tips, it also boasts two rotation speeds and legitsounding deceleration & acceleration effects.
LESLIE CABINET IN A STOMPBOX! The Hughes & Kettner Tube Rotosphere is without a doubt the next best thing if you can't find (or afford) an authentic Leslie speaker.
The Rotary Revolution: Stereo Rotary Cabinet and Tube Saturation in One. Tube Rotosphere® MK II has all the inspirational power of the legendary Leslie® cabinets. It not only puts the response of a tube-powered Leslie at players’ toe-tips, it also boasts two rotation speeds and legitsounding deceleration & acceleration effects.
Rotosphere’s spectrum ranges from clean to sizzling rock scream. In stereo mode, it serves up all the tonal complexity and dynamics of the real deal, a bona fide Leslie. In fact Tube Rotosphere MK II feels so real, that even some of world’s most celebrated bands(such as Oasis, Arctic Monkeys) won’t leave home without it!
What distinguishes the Rotosphere MK 2 from the Rotosphere MK1?
The MK II version offers two new features that its predecessor, the first Tube Rotosphere, lacked:
1. When you stop the rotary action, the simulated drum and horn always return to the same default position. This ensures that varying rotor positions don’t color the sound of the pedal and that you get consistent tone when you use the Tube Rotosphere purely as a tube preamp.
2. A couple of trim pots let you adjust the FAST speed separately for the drum and horn. These two trimmers are located to the left and right of the BALANCE knob. Use a small screwdriver to adjust them. Feel free to try out different settings for the two rotors and dial in the combination of speeds that you like best.
The button that controls the BREAKER function was replaced with an On/Off switch. While the old model required you to hold the button down with your foot to arrest the rotary action, now you can simply activate and deactivate the BREAKER at the touch of a button. That frees up your foot to operate other effect devices or, in the case of organs, bass pedals.
Images:

Technical specifications
- Model Tube Rotosphere
- Stereo Rotary Cabinet and Tube Saturation in One
- Preamp 1x 12AX7
- Effects Rotary, Drive
- Switching Functions Bypass, Breaker, Slow-Fast, Mode (guitar/keys)
- Special Features Drive, Output, Rotor Balance 2 Trimmers for Fast Speed setting
- Bypass Real Bypass
- Dimensions 215 x 205 x 80 mm
- Weight 2 kg/4,4 lbs
Resources:
Download the manual for the Hughes & Kettnerr Tube Rotosphere
To listen to sound samples, visit the Hughes & Kettnerr Tube Rotosphere page.