Meyer Sound Speaker MJF 212A User Manual

DATASHEET  
ULTRASERIES  
MJF-212A : High-Power Stage Monitor  
27.07" w x 16.11" h x 23.00" d  
Dimensions  
(688 mm x 409 mm x 584 mm)  
108 lbs (49 kg)  
Weight  
Enclosure  
Finish  
Premium birch plywood  
Black textured  
Powder-coated hex-stamped steel,  
black mesh screen  
Protective Grille  
Female XLR input with male XLR loop output or  
VEAM all-in-one connector  
Audio Input  
PowerCon® with looping output or VEAM  
all-in-one connector  
AC Power Connector  
27.07  
[688mm]  
40¡  
16.11  
[409mm]  
8.80  
[223mm]  
40¡  
13.70  
[348mm]  
23.00  
[584mm]  
output stages to provide total burst output  
of 1275 watts (2 x 500 watts, 1 x 275 watts),  
2550 watts total peak. The MJF-212A  
incorporates Meyer Sound’s Intelligent AC™  
system for automatic voltage selection, EMI  
filtering, soft current turn-on, and surge  
suppression.  
The Meyer Sound MJF-212A is a self-  
powered stage monitor loudspeaker  
designed to meet critical requirements  
in professional applications. Exhibiting  
flat amplitude and phase responses, full-  
range bandwidth, and exceptional impulse  
response, the MJF-212A far exceeds the  
capabilities of conventional stage monitors  
while offering the simplicity of setup and  
operation provided by self-powered  
systems.  
applications such as the extreme low-  
frequency demands of high-level drum  
monitoring. The face of the low-profile  
cabinet slopes at 40 degrees from the stage  
to permit optimal placement relative to the  
talent, while its medium-Q horn provides  
even coverage in both the horizontal and  
vertical planes.  
The cabinet is constructed from premium  
birch plywood and coated with a durable,  
textured black finish. A metal grille lined with  
acoustical black mesh protects the drivers.  
The rugged MJF-212A includes plastic skids  
on the bottom of the unit to prevent damage  
to the enclosure or stage floor.  
The loudspeaker’s high-frequency section  
comprises a 4-inch diaphragm compression  
driver coupled to a symmetrical (50 degrees  
horizontal by 50 degrees vertical) constant  
directivity horn. A pair of high-power  
12-inch neodymium magnet cone drivers  
with 4-inch voice coils, mounted in an  
optimally vented enclosure, reproduces  
low frequencies.  
The MJF-212A monitor’s phase-corrected  
frequency range of 55 Hz to 18 kHz  
enables accurate reproduction of both  
vocals and instruments with high gain  
before feedback, and provides excellent  
intelligibility at high output levels with low  
distortion and no coloration added to the  
signal. The MJF-212A is also engineered  
to have exceptional low-frequency  
headroom, which can be helpful in some  
The MJF-212A can be integrated into Meyer  
Sound’s RMS™ remote monitoring system  
with the addition of an optional module.  
RMS is a Windows-based computer applica-  
tion for monitoring the full range of ampli-  
fier and limiter operating parameters.  
Each driver is powered by one channel of  
a three-channel class AB/H amplifier that  
employs complementary power MOSFET  
features & benefits  
applications  
High peak power ensures excellent  
transient response  
Main vocal monitor  
Low profile preserves sightlines  
High-output drum or keyboard monitor  
Symmetrical, medium-Q pattern  
provides even coverage  
Flat frequency and phase responses  
afford high levels of gain before  
feedback  
Sidefill monitor for small- to medium-scale  
applications  
 

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