The B4000+ from Ferrofish is an external sound module that authentically models the original Hammond B3 drawbar organ. The modeled features include ninety-one tonewheels, full polyphony, key clicks and percussion, scanner vibrato, overdrive, rotating Leslie speaker, and much more. The module includes nine real drawbars, high resolution endless potentiometers and a TFT display. Processing is handled by a Sharc DSP from Analog Devices and a Cortex 3 ARM processor.

• Three full polyphony manuals supported
• Nine drawbars
• Six high resolution metal dials
• Percussion including harmonic, attack and decay
• Tonewheel emulation including leakage and condition
• Mechanical emulation including key click and key contact delay simulation
• Physical circuit modeling
• Rotating speaker emulation
• Tube amplifier emulation (with overdrive)
• FX section with chorus/vibrato, reverb and compressor
• External stereo audio input for routing through the effects section
• Global tuning
• Envelope attack and decay
• MIDI key split and velocity
• TFT color display
• USB interface
• Two MIDI inputs
• Stereo analog output and headphone out
• Supports expression pedal and sustain switch (pedals not included)
• ARM Cortex M3 and Sharc DSP processors