Blue Cat's Spinal Vibe is a sophisticated rotary speaker emulator that extends beyond traditional simulations by offering up to three independently controlled rotating speakers. Each speaker's rotation speed, curve, Doppler effect, amplitude modulation, and dampening can be finely adjusted, including acceleration and deceleration parameters. Users can select slow or fast rotation speeds, apply an instant brake to stop rotation, sync the rotation with the host tempo, and adjust the phase and direction of each speaker to craft unique modulation patterns.

Beyond simple rotary speaker emulation, Spinal Vibe enables the blending of dry and rotated signals to create rich phasing effects through phase cancellation. This flexibility allows for a broad range of modulation effects derived from the dynamics of rotating sound sources. The plug-in focuses on rotation-based effects and does not include distortion or speaker-specific simulations, but it can be paired with other tools to expand its sonic capabilities. Its intuitive controls facilitate easy tone shaping while maintaining detailed control over modulation parameters.

Designed to optimize performance, Spinal Vibe supports multicore processing to minimize CPU usage and shuts down processing when no audio input is detected. It is compatible with various plug-in formats on Mac and Windows, featuring full MIDI control and automation, MIDI Learn functionality, and a customizable user interface with zoom and transparency options. Additional features include smooth bypass, an integrated presets manager, undo/redo functionality, and support for any sample rate, making it ideal for applications like rotary speaker simulation, tremolo, chorus, phasing, and spatialization effects.