2
-DESCRIPTION-
The
Motion Sound
KBR-3D
is a state-of-the-art amplifier for keyboard providing all of the
features necessary to reproduce stereo and rotary sound independently. The two channels employ
technology that is specifically targeted to reproduce and enhance the sound of instruments
normally associated with each channel. Hi-Fidelity stereo = piano, strings and synthesizer.
Rotary = organ. If your keyboard has multiple outputs, you can send stereo piano and strings,
etc., to the stereo channel from the standard left and right outputs of your keyboard. Organ
sounds (be sure to turn off the rotary simulator in your keyboard) may be assigned to an auxiliary
output and plugged into the KBR-3D’s rotary channel. Left/right line level inputs on the rear
panel allowing mixing boards for microphone and other instruments to be fed directly to the
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” 80-watt Ferro cooled horns driven by 100/100-watt amplifiers provide stunning
clarity and transient response. A 12AX7EH tube pre-amp and 45-watt amplifier driving a 80-
watt MS-1.2 diaphragm for the rotary horn in conjunction with the enhanced stereo low rotor
simulator provide rich liquid REAL rotary sound.
-QUICK START-
1.
Set all controls to the default number indicated on each control.
2.
Set keyboard to 50% volume; plug into the KBR-3D’s appropriate channel.
3.
Fine tune volume and tone controls to suite your taste.
-ROTARY CHANNEL-
The KBR-3D employs Motion Sound’s acclaimed PRO-3T rotating horn technology, including a
12AX7EH pre-amp circuit and the MS 1.2 proprietary diaphragm. The low rotor simulator is
specifically designed for the KBR-3D’s speaker cabinet and provides rich, liquid stereo
simulation.
Inputs:
1.
Input “1” is designed for use with a single keyboard or organ module.
2.
Input “2” when used alone (without input 1) attenuates the incoming signal by 50%. This
input impedance is reduced to 33K ohms.
3.
Analog volume pedals are not recommended.
