People have talked to me, saying that they were playing an organ and switched to a French set of stops and then an English set and though that the sounds they were hearing were all the same sounds with audio filtering used to make them sound different. I thought that this seemed strange until I played an instrument, there to quote to rebuild an antiphonal that had been left when the new digital organ console was added to the main pipe organ. Without naming the builder, I can tell you that I too thought there were just filters used on the same stop set to make it sound different when I pulled the French Organ knob.
Rodgers has used independent samples for all of its digital work and these new small organs prove it. Each of teh stops has three additional independent stops available behind it at all times.
It's as if a pipe organ has been built and combined with a bowling pin setter machine. You select a stop and it plays. You select a stop behind the named stop and this pipe setter lifts all the pipes out of the rack, stores them away and puts a new, different set of pipes in that rack.
So on the 330 SW with nine stops and each one with 4 stops that it can play how many different registrations are there? The math escapes me! With 36 independent stops that may be played in combinations between the 4 rows of stops....it's a lot.
And when playing these stops they are all different in tone, character and loudness, so it's not like playing 4 of the same stops. but rather hearing four different pipe sounds that each blends differently with other pipe sounds in its own way.
While Rodgers people may be used to this, others may be more familiar with systems in which each set of stops is only available with the other ones in its family, not permitting the free mix and match that Rodgers offers.
But this is only leading up to the next step in these organs, the MIDI stops, two for each division.