Playable PT2399 Digital Delay & Feedback Lock Module

The AXiS Modular LKDELAY MKII is an 8HP playable digital delay module built around the PT2399 delay processor. Designed for performance-oriented manipulation, it combines CV-controllable delay times, immediate feedback locking, dedicated wet/dry audio routing, and two distinct delay range options.

The LKDELAY MKII expands on classic PT2399 pedal delay circuits by adding performance features specifically designed for Eurorack modular patching. Central to the module is its dynamic feedback lock system, accessible via both a momentary LOCK button and a latching toggle switch. Engaging the lock instantly freezes feedback loops, allowing users to tweak the manual TIME control to create evolving, pitch-shifted, and glitchy textures. Attenuating the LK (Lock) Level control enables soft spatial diffusion, simulating short ambient reverbs and vintage chorus effects.

To support complex signal chains, the MkII revision adds a dedicated Wet Output jack, allowing the effected delay signal to be processed independently through external filters, pitch shifters, or spatial effects—or paired with the main output for wide pseudo-stereo routing.