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The KBR-3D can produce extremely high sound pressure levels. Hearing protection is
advised. The KBR-3D must be earthed and connected to a correct power source.
Design Range:
Rotary Channel
Stereo Channel
Power amp inputs
Dry rotary output
Tube: 12AX7EH – 7025 – 5751
Power Amplifiers: 100/100 watt RMS main full range amplifiers
45-watt RMS > 800 Hz horn amplifier
Frequency Response: Full Range speakers 50-15 kHz + -5 dB
Horn driver 600 Hz-8 kHz
Speakers: 2 10" Eminence Beta 250-watt, 8 ohms
2 80-watt 3.5X3.5 Ferro-cooled horns, 8 ohms
1 80-watt MS 1.2 proprietary diaphragm horn driver, 8 ohms
Dimensions: 24" W 21" H 16"
Power:
US
Europe
Japan
Fuse Location: The fuse is located in the power inlet module on the rear panel. Use only the
recommended size of fuse as stated above.
KBR-3D
-WARNING-
-SPECIFICATIONS-
Input 1
Input 2
All inputs
Weight 68 lbs.
117 VAC
50/60 Hz
230 VAC
50/60
100 VAC
50/60
375 mV RMS
Unlimited
175 mV RMS
420 mV RMS
420 mV RMS
Fuse (Slo-Blow)
300 watt
5 amp
300 watt
2.5 amp
300 watt
5 amp
1
100K ohms
50K ohms
100K ohms
22K ohms
600 ohms
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Table of Contents
Related Manuals for Motion Sound KBR-3D
Summary of Contents for Motion Sound KBR-3D
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Page 1: Specifications
The KBR-3D can produce extremely high sound pressure levels. Hearing protection is advised. The KBR-3D must be earthed and connected to a correct power source. Design Range: Rotary Channel Stereo Channel Power amp inputs Dry rotary output Tube: 12AX7EH – 7025 – 5751 Power Amplifiers: 100/100 watt RMS main full range amplifiers 45-watt RMS >... -
Page 2: Quick Start
KBR-3D’s power amplifiers. The rear panel has left and right XLR outputs and a mixer for the rotary channel stereo horn microphones. There are two 10” 250-watt Eminence Beta speakers and two 3.5X3.5”... - Page 3 “ring” determines whether slow or stop is enabled. Fast overrides all: When the fast speed is on (yellow fast indicator on the KBR-3D is lit), the stop button does not have effect. When the fast button is pressed again (yellow indicator off) the slow speed or stop is enabled depending on the position of the stop switch button.
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Page 4: Stereo Channel
Low Rotor Effect: This controls the amount of low rotor simulator effect. The circuit design is unique to the speaker placement and angle of the KBR-3D’s cabinet. Typical settings of 7-9 are best. This is also a personal preference control. -
Page 5: Rear Panel Connections
“non-rotary” reverb in conjunction with rotary sound (420 mV RMS nominal). Power Supply: The KBR-3D contains two 100 watt power amplifiers for the full range system and 45-watt amplifier to drive the horn from>800 Hz. The power supply is capable of 200 watts RMS that is shared between the three amplifiers. - Page 6 These instruments rarely needed response above 8 kHz. The driver provides rich, “musical” response over this most desirable range. (You must use a Motion Sound MS 1.2 proprietary diaphragm.) -INTERNAL ADJUSTMENTS AND MAINTENANCE- The new Polymaric (proprietary polymer) finish is similar to a “truck bed-liner”...
- Page 7 Motion Sound used a proprietary MS-1.2 diaphragm. DO NOT USE other diaphragms. You can purchase the MS-1.2 through Motion Sound. The dynamics and speeds of the KBR-3D’s horn motor and low rotor simulator are calibrated at the factory to simulate a 147 type rotary speaker that is well used but maintained. Three parameters of the horn and low rotor simulator may be adjusted to user preference as follows (note original position of potentiometers before turning).
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