Ferrofish B4000+

Probably the best B3 emulator out there. It also has 2 mini inputs independant of each other where you can connect 2 midi controllers to it making it look like a 2 keyboard B3 setup. Their midi cointroller maual is probably the easiest one to understand in order to assign every feature to a controller if you like.

• Hardware Features: 9 drawbars, 6 high resolution metal dials, TFT color display
• Organ Emulation Features: 3 full polyphony manuals, Percussion (including harmonic, attack, decay), Tonewheel emulation (including leakage and condition), Mechanical emulation including keyclick and key contact delay simulation
• Analog I/O: 2/2 Channels
• Headphone Output: 1
• MIDI I/O: 2 x Input
• USB 2. 0: 1 (for MIDI to host PC/Mac)
• Processor: ARM Cortex M3 and Sharc DSP

• Expression Pedal: Input
• Sustain Switch: Input

Power supply included.