Native Instruments has announced a special limited-time upgrade offer for the NI Komplete 2 bundle, which will be officially launched on June 1st. NI Komplete 2 is an extensive collection of sound generators and effects with eleven critically acclaimed software synthesizers, samplers and effects: Absynth 2, Reaktor 4, B4 Organ, Fm7, Pro-53, Kontakt 1.5, Kompakt, Intakt, Battery, Vokator and Ni-Spektral Delay. Registered owners of any single product can upgrade to NI Komplete 2 for $580, while owners of four or more products can upgrade for $340. The offer is good through May 31st, when NI Komplete will be available for $1150; upgrades will start at $800.