Nonlinear Labs C15 Synthesizer Update Doubles Polyphony, Adds Polyphonic Aftertouch Support
At the 2025 NAMM Show, being held Jan 21–25 in Anaheim, CA, , Nonlinear Labs is previewing an update to the firmware of their C15 synthesizer that doubles the instrument’s polyphony, adds new options for expressive control and more.
The C15 is performance-oriented synth, designed for playability and detailed sound editing. The digital synthesis engine is based on phase modulation, a comb filter, and a feedback structure, giving the C15 a unique character.
What’s new in the upcoming Nonlinear Labs C15 firmware update:
- The polyphony will be increased from 24 to 48 voices, at the previous sample rate of 48 kHz. Alternatively, a higher sample rate of 96 kHz with 24 voices can be used.
- The C15 audio engine has been expanded to support polyphonic modulation sources. In the first step, polyphonic aftertouch can now be received via MIDI.
- Pitch bend and sustain functions can now also be used independently of macro controls, freeing them up for other modulations.
- A sostenuto pedal function and the ability to switch presets and banks via footswitch have also been added.
- There are also a number of improvements to user-friendliness and optimizations to the operating system.
Nonlinear Labs C15 2025 Firmware Update Overview Video:
Topics covered in the video:
00:00 Intro
00:32 Global Pitch Bend Parameter
00:47 Global Sustain & Sostenuto
01:12 Footswitch to change Presets
01:28 96kHz Sample Rate
01:43 48 Voice Polyphony
02:02 Improved Internal Recorder
02:33 Graphical UI – new Zoom Buttons
02:44 Polyphonic Aftertouch via MIDI
04:11 Copy Modulation Assignments
04:26 Copy Hardware Source Assignments & Amounts
04:41 Summary
C15 Audio Demos:
Details on the new firmware are available at the Nonlinear Labs site.
