Motion Sound Pro 3t w/ Low Pro Bass Cabinet Rotating Tube Amplified Leslie Style Speaker System 2000s USA

Read through for shipping info. We ship internationally via courier at heavily reduced rates.

See store for more cool finds.

Scroll down for video (horn only).

The guitar player's Leslie.

Here is a Motion Sound Pro 3t amplified rotary speaker (horn) and Motion Sound Low Pro mechanical rotating drum speaker cabinet. It's in terrific condition and comes with foot controller and connecting cable. This is one of coolest sounding amps ever made. The Pro 3T is a Leslie styled rotating horn. It has a single 12ax7 in the pre-amp and solid state power stage. It's paired with the Low Pro, a 12" speaker cabinet with a rotating drum. They sync with the included midi cable. It sounds amazing through a Hammond organ or Roland VK-7. Most importantly you can get some great sounds on guitar as well.

The Motion Sound Pro 3T is a hybrid tube-driven, amplified rotary horn speaker designed to simulate the top rotor of a Leslie speaker, featuring a 12AX7 tube preamp, fast/slow/stop speeds, and a built-in microphone for PA connection. It adds authentic mechanical rotation to guitar or keyboard rigs, often paired with a Low Pro unit for full-range, dual-rotor simulation.

Key Features & Details:

Rotary System: Uses a physical rotating horn for high frequencies and simulates low-end swell, providing true Leslie-like motion and warmth.

Preamp: Features a 12AX7 tube for added harmonic overdrive.

Amplification: Self-amplified (around 15-45 watts depending on version/updates).

Connectivity: Includes a built-in microphone to mic the horn, a low-rotor mixer output (for the Low Pro unit), and a footswitch input for speed control.

Usage: Best for organs (Hammond/clones) and guitarists seeking authentic vintage modulation, often used on top of a separate amp for bass.

The Pro-3T is part of the Pro-3 series, with later models including the Pro-3X (updated motor/horn). It is known for being lightweight and gig-friendly compared to a full Leslie cabinet.

SPECS:

•. 12AX7A tube pre-amp

• 45-watt RMS > 800 Hz rotary horn

• 80-watt RMS rotary horn driver

• Controls: Pre-Gain (Amp level), Post-Gain (Amp level Contour (Tone) Separation/AM (Wideness

• Inputs/Outputs: Input (Line in) Speed control (footwitch) Left (Output), Right/Mono Output)

• Footwitch Option:

Fast/Slow/Stop, BasicFS2- stvle dual button footswitch

• Heavy duty structure but only 27lbs/12kg

• Made in Salt Lake City, Utah, USA

Motion Sound Low Pro:

This item is a Motion Sound Low Pro speaker cabinet, specifically designed to be paired with a Motion Sound Pro 3t to emulate a Leslie rotating speaker system in a smaller package.

Functions as a bass speaker cabinet designed for keyboards or guitars to produce a "Leslie sound".

Pairs with a rotating horn unit (Pro 3t) to provide a full-range rotating speaker effect.

It is designed for portability, offering a smaller alternative to traditional, large Leslie speakers.

Overseas buyers contact us with your address for an accurate shipping quote.

Items are packed properly and shipped within twenty four hours.