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      MS-1771 (Polymaric Finish )   &   MS-1771W  (walnut Finish)  Rotary Speaker System

      11-PIN STANDARD COMPATIBLE
The MS-1771 connects via a standard 11-pin rotary speaker connector. This allows the MS-1771 to be connected to any of the tonewheel clone keyboards, portables and organs that utilize a single channel Rotary Channel. It also allows the support for Speaker Power On & Off, Slow, Stop and Fast Rotor controls.With the purchase and installation of a optional standard 11-pin connector kit, the MS-1771 can be used with most vintage tonewheel organs and single channel organs. A qualified, professional organ technician should install the right kit for you.

REAL UPPER AND LOWER ROTORS
The MS-1771 features both a real upper rotary horn and a 15” bass speaker with a traditional lower rotor not made of foam. The mass of the lower rotor and its reflective curve are like the old standard.

INDEPENDENTLY ADJUSTABLE ROTORS
Many times, as a player, you are looking for the “sweet spot” for how fast or slow each of the rotors spin in addition to the time it takes for each rotor to get up to speed or how long it takes to “spin down.” You have independent control over each rotor’s parameters that can be “fine tuned” to your liking. Once set, no one else can change your settings. They stay where you set them.

QUIET OPERATION
The rotors feature whisper-quiet, zero maintenance ball bearings. Because the MS-1771 uses DC (direct current) motors, it is super-quiet - even in fast mode when you’re not playing. In addition, there’s no motor noise when the MS-1771 is being used with microphones for recording or broadcast purposes. Even the belts are made of a Space Age material for low noise and low maintenance.

FINISHED on front, sides, and back.

Natual Wood Finish
A real wood walnut finish that matches most walnut vintage organs and today's newer models.

Durable Polymaric (tm) polymer Finish
Finished with a tough black Polymaric finish, the MS-1771 complements the look of your organ. This new polymaric finish is highly scratch- and water-resistant.To clean it, all that is needed is damp cloth.

               Very High Power!

It’s the only way to describe the Motion Sound. Rated at 200 watts, the Motion Sound model MS-1771 rotary speaker won’t “wimp out” when you really need the power. Whether you play gospel, blues, jazz, rock or any other type of music that requires a “full rotary speaker sound” the Motion Sound won’t leave you wondering where your sound went.

To find out more about about the MS-1771 or to find the nearest Factory Authorized Motion Sound Dealer contact us here at Motion Sound!

Model MS-1771 Specifications

GENERAL
Remote POWER ON switch
Zero-maintenance ball bearings for the Horn & Lower Rotors.

AUDIO PARAMETERS
Audio input range .707 to 17 volts RMS
Crossover 18 db/octave at 800 hz
Controls: overall gain, Horn Volume, Bass, and Treble
Horn diffuser
Bi-amped
-Horn - 70 watts RMS
-Lower - 130 watts RMS

ROTOR CONTROLS
Independent Horn & Lower Rotor Controls for:
-Fast
-Slow
-Speedup Time
-Slowdown Time

SPEAKERS
Horn - Driver rated 80 watts RMS
Lower - 15 inch rated 400 watts

DIMENSIONS
H 34.5” - W 27.5” - D 20”

WEIGHT
120 Lbs

POWER
117 Volts AC - 60 Hz 400 watts
 

  Vintage Organs Connection

 These companies (not affiliated with Motion Sound) make or sell adapter kits and pre amplifiers to connect an MS-1771 to vintage Organs.
www.trekii.com
www.goffprof.com
www.bborgan.com

 Reviewied  November 04 Keyboard magazine