3-oSC is an old, but good, synthesizer from the Reaktor Legacy Library.
Modifications include: frequency modulation, pitch modulation, oscillator sync, volume mute for the oscillators, amp velocity, custom delay, new snapshots, GUI. Knobs are by Jonathan Style.
There are two banks of snapshots: the original bank from 3-oSC and a new bank of altered snaps. I retained the entire original synth - just added more features - and so the original snaps sound the same on both synths.
v1.1: A mod. wheel can be used to crossfade between filtered and unfiltered sound.