Strymon SuperKar Plus: Advanced Polyphonic String Synthesis for Modular Systems

The Strymon SuperKar Plus is a Eurorack module crafted to emulate the character of plucked, bowed, and struck string or pipe instruments through Karplus-Strong synthesis. What distinguishes this model is its ability to deliver both a polyphonic Solo Voice and a smart Chord Voice, each with individual timbre, pitch, and level controls. Musicians can use it as a centerpiece for expressive, lifelike textures and intricate harmonic arrangements within a compact 12HP format. The module is an excellent fit for modular users pursuing high-fidelity, immersive sound design with maximum flexibility.

What makes the Strymon SuperKar Plus unique?

Combining two independent voices, each supporting up to 16-note polyphony, this model provides a powerful selection of real-time controls for timbre, damping, attack, decay, detune, harmony, and glide. Advanced MIDI integration for the Solo Voice gives players piano-like expression and intricate multi-voice setups. Unique stereo and mono output modes, plus scale-based chord generation, set it apart from standard Eurorack voices.

Player-Focused Polyphony & Integration

Polyphony is vital for users wanting to play chords, harmonize, or recreate ensemble textures. Up to 16 simultaneous voices per section—whether triggered by CV or MIDI—allow for sustained notes, lush harmonies, and advanced layering without note cut-off. This gives creators the freedom for ambitious arrangements.

• Polyphony: 16 voices per channel — delivers rich, overlapping passages and complex progressions
• MIDI interface: Yes — 16-voice MIDI control for Solo Voice expands performance options
• There is no battery power, which ensures stable operation in both studio and stage scenarios.

Expressive Sound Shaping & Modular Control

Articulation and realism lie at the heart of this instrument. With separate attack, decay, and damping for each voice, players are able to mold everything from sharp plucks to bowed or wind-like tones. Controls for glide, detune, harmony, and scale enable dynamic modulation, and CV inputs allow every parameter to be sequencer- or manually-controlled. Output options include wide/narrow stereo, mono sum, and split voice routing for advanced patching flexibility.

• Attack, Decay, Damping: Independent per voice — sculpt percussive, sustained, or evolving textures
• Dynamic harmonies and scale selection generate chords from a chosen root note in real time.
• Flexible Outputs: Stereo, mono, and split modes — route Solo and Chord Voices separately or together

Studio-Grade Performance & Practical Features

Equipped with a robust DSP core, the module offers precise tuning across six octaves and pristine 32-bit signal processing. The 12HP width and 38 mm depth fit comfortably in any rack, and a USB port provides firmware updates. Audio inputs enable use as a sympathetic resonator, and the included manual aids fast setup. Not battery powered, this model is built for professional environments.

• Signal Processing: 32-bit floating point, 520 MHz ARM — high-fidelity sound with low noise
• The 12HP width and 38 mm depth make for a compact Eurorack form factor.
• Package Content: manual included for easy reference

Who Should Choose the Strymon SuperKar Plus?

This model is designed for advanced modular users, sound designers, and electronic musicians requiring expressive polyphony and realistic string textures. Those composing cinematic soundtracks, building intricate arrangements, or experimenting with new synthesis techniques will find the deep control and MIDI support ideal. With its unique harmonization and stereo imaging, it appeals to anyone seeking to elevate their modular sound design.

Strymon SuperKar Plus: Engineering Meets Inspiration

This instrument showcases Strymon’s expertise in high-end DSP and modular instrument design. Developed by Pete Celi’s team, the SuperKar Plus builds on the legacy of the StarLab module and focuses on polyphony and musicality. Strymon’s standards for sonic precision and innovation are present throughout, from its hands-on interface to its lifelike sound, securing its place as a landmark in modular synthesis.