Note that since the beginning of August 2026 for some unknown reason the Toybox Audio Designers Pack is no longer available.

This piano synth patch is based around a set of Toybox Audio blocks (see below). The sound is derived from a combination of Multi Oscillators, one acting as a dual pulse, and the other in FM mode (giving a sort of piano attack to the sound), with a dash of noise added for interest along with LFO modulation both oscillator’s shape. The patch is velocity sensitive.

The download zip files include both the rack (.nksr) and ensemble (.ens).

Reaktor version used: 6.5.0

My Reaktor paths:
Documents Native Instruments/Reaktor 6/Blocks/Petras/Racks
Documents Native Instruments/Reaktor 6/Blocks/Toybox/…

LFO – Tangle Pack Lite/Modulation/MOD-LFO
Multi Oscillator – Designers Pack/Oscillators/OSC-Multi Oscillator
Noise – Designers Pack/Oscillators/SAM-Noise
Mixer – Atomic Pack/Utility/UTL-Mixer 4
Envelope – Atomic Pack/Modulation/MOD-Envelope
Filter – Atomic Pack/Filters/FLT-Filter
Feedback Delay – Atomic Pack/Effects/EFX-Feedback Delay
Reverb – Atomic Pack/Effects/EFX-Reverb