Further it provides 6 independent resonator voices
where the first of it is the master and all others
can be detuned to the master note, each voice is
also equipped with a pan slider and a range button
which you can use to set the detune range between
one octave and one semitone.
Rez3 is a free VST plugin and comes with 32 Presets.
You are welcome to vote for it at the KVR Developer