Slate Digital has introduced its first model of a speaker cabinet. The Rotary SD-147 plugin offers an accurate model of the rotating speaker cabinet behind a half-century of records.
Every classic organ track. “Tomorrow Never Knows.” “Little Wing.” “Black Hole Sun.” A long list of others. The two rotors, the cabinet reflections, the tube amplifier, the crossover, the saturation, the mechanical noise, the acceleration physics. All of it modeled.
Then it adds things the original cabinet couldn’t do. Silence the motor noise. Eliminate mic crosstalk. Stop the rotors at an exact angle. Resize the cabinet. Lock the rotation to the project tempo. Automate every parameter. Map the speed switch to a MIDI controller and play it live the way the cabinet was used on stage.
Rotary SD-147 features
- Two rotor models: horn (mids/highs) and drum (lows), with independent gain on each and realistic per-rotor acceleration and deceleration physics.
- Three speeds: Slow (Chorale), Stop, Fast (Tremolo). Per-rotor Speed Slow and Speed Fast knobs set the rotation rates; Accel/Decel knobs control how quickly the rotors transition between speeds. The speed switch is fully automatable and can be mapped to a MIDI controller or keyswitch for live performance.
- Tube amplifier model: two-channel amplifier with adjustable saturation and user-set crossover frequency between horn and drum.
- Adjustable mechanical noise: scale from real-and-noisy to completely silent, independent of the audio signal.
- ML-1A Virtual Microphone System built in: 10 mic models for the horn and baffle, with the VMS Intensity control, no separate VMS purchase required.
- Free mic placement: three preset horn-mic setups (90°, 180°, mono) with manual distance, offset, and angular-width; two baffle-mic setups with manual distance and position around the cabinet.
- Beyond-physics controls: Mic Bleed on/off, Brake to Position (stop the rotors at any angle), adjustable cabinet size (smaller or larger than the original), adjustable depth.
- Tempo Sync: lock the rotation to the project tempo, with rates shown as multipliers and divisors.
- Full automation: every parameter is DAW-automatable, including the speed switch for in-song movement.
Regularly priced $99 USD, Rotary SD-147 for Windows and Mac (VST3, AU and AAX) is on sale at an introductory 50% discount until June 18th, 2026.
The offer is available at Slate Digital and from AudioDeluxe, where you can get an additional 10% discount with coupon SUMMER2026 at checkout for a limited time.
The plugin is also part of Slate Digital’s Complete Access subscription.