PRO-3X
-INTRODUCTION-
The Motion Sound PRO-3X amplified rotary horn system, in conjunction with an existing
amplifier, provides drawbar organ and organ keyboard modules with the best possible rotary
sound in a portable, rugged, modern design.The PRO-3X is the worthy successor to the long
running PRO-3, PRO-3T and PRO-3Tm rotary horn amplifiers.We have incorporated suggestions
from many musicians and added our years of experience with rotary amplification into the new
PRO-3X’s performance and features.
The PRO-3X is designed to work with your existing Keyboard amplification system. The highs,
above 800 Hz, are sent to the PRO-3X’s 45 watt amplifier and horn driver with the real rotating
horn producing the 360 degree rotary sound. Audio below 800 Hz is routed through the PRO-
3X’s low rotor simulator and sent out the Sim or Mix output for amplification by an external
amplifier, In ear monitor, or PA system.
Although operation may seem intuitive, we suggest that you read this manual for helpful tips
and/or details about the adjustable parameters, controls, and operation of the PRO-3X in various
venues and environments.
-WARNING-
The PRO-3X can produce high sound pressure levels, hearing protection is advised!
The PRO-3X must be earthed and connected to specified power for safe operation!
-SPECIFICATIONS-
Input Design Range - 1 volt to 4 volts P-P (5 volts P-P maximum).
Input Impedance – 100K ohms. tip = signal, sleeve = ground or common.
Pre Amplifier – Proprietary adjustable mode FET.
Power Amplifier – Solid state for Horn > 800 Hz 45 watts.
Horn Driver – Motion Sound modified Eminence diaphragm – model MS-1.2 80-watt, 8
ohms
Power Voltage Frequency Watts Fuse (slo-blo)
US 117 VAC 60 Hz 100 2 Amp
Europe 230 VAC 50 Hz 100 1 Amp
Japan 100 VAC 60 Hz 100 2 Amp
Fuse – located in AC inlet module CAUTION-Use correct value only!
Finish – two part Polymaric tough polymer finish on MDF
Dimensions – 6.5” Height – 20” Width – 16.5” Depth Weight 27 lbs.
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