ULTRAkILLER is a powerful virtual analogue synthesizer featuring two flexible oscillators, each offering a selection of three distinct types. Users can choose between a basic oscillator with seven waveform options, a unison oscillator equipped with eleven waveforms and efficient unison capabilities, or a spectral additive oscillator supporting up to seven voices in unison mode. Additional features include oscillator hard sync for enhanced sound design possibilities.

The synthesizer is equipped with two state-variable filters that provide complex stereo routing and allow mixing of low-pass, high-pass, band-pass, and band-reject modes. Modulation possibilities are extensive, with two six-stage envelopes featuring looping and assignable interpolation, two tempo-synced LFOs, and random modulation sources accessible through an eight-slot modulation matrix. A dedicated ADSR envelope controls the VCA stage, while two separate overdrive stages add warmth and character, one per oscillator and one post-VCA.

ULTRAkILLER also includes a built-in gate effect and offers full MIDI CC compatibility for seamless integration into any setup. These features combine to make it an excellent choice for producers seeking a synth capable of delivering rich, dynamic sounds with deep modulation and expressive control possibilities.