Motion Sound developed the Pro-3 a few years ago to address this problem (please refer to Mark Longo's review of the Pro-3 in this FAQ for a complete description). The Pro-3 is used by countless musicians to create the elusive Doppler rotating effect of the Leslie speaker (only with a real rotating horn of a Leslie or Pro-3 can this three dimensional effect be achieved). With the success of.. The PRO-3X adds real rotary horn sound to your existing keyboard amplification. It features a proprietary Class A, AB, B variable-mode FET pre-amp providing crystal clear sound and an adjustable palette of overdrive harmonics. The Pro-3X adds many new features and improved sound quality to the long running Pro-3 & Pro-3T series of products.
This Pro 3 is fully functional and in good condition. It comes with the Gas Pedal for speed control.The Pro 3 is a Leslie-like rotating horn in a slim, portable cabinet. It is the best modern option for getting a true, swirling rotating horn sound. Everything sounds exciting through the Pro 3. L.. Shop for the Motion Sound PRO 3X Keyboard Amplifier in and receive free shipping and guaranteed lowest price.