The Alphatron SP Controller is a Rack Version, which sits above the Pure-MCone. The advantage is, that i only need one 10“ Touchscreen and one 5 octave Keyboard to control both VST Instruments.
With the HOST Program „Candabile Solo“, which is a Multi-Rack Software for VST Instruments and Effects, i can load both VST Intruments into two different Slots and give them a different Midi Chanel.
That means, that i use at the end 4 Doepfer Midi Interfaces with up to 254 ! Midi CC to control both VST Instruments at the same time.
So i have a total of 3 Oscillators, 3 Sample Player, 6 LFO´s, 4 Envelopes, many Modulations and 2 Step Sequencer. That all can run together.
With the Midi Keyboard i can choose the Midi Channel very quickly, so i can play both VST Instruments together or one with the Keyboard and the other with the Step Sequencer or, or, or ....
This case is total 90 cm x 57 cm (about 35 inch x 23 inch)