Electro-Voice Mixer Amplifier MA-1212 User manual

The MA series of professional rackmount
mixer/amplifiers are designed for background
music/paging and public address system
installations where expandibility and flexibility is
the ticket. These units are exceptional values,
loaded with features and are easy to install in
a variety of system designs.
The MA-1206 and MA-606 provide a powerful 60
watts of output power into 70v/100v or 8 Ohm
loads. The MA-1212 has the same feature set but
supplies twice the power at 120 watts. All models
have a variety of features to enable them to be
customized to a wide range of background music
and paging applications.
The MA-1212 and MA-1206 feature 12 separate
input channels. Input channels 1-10 are designed
to be used as either balanced or unbalanced low-Z
microphone inputs or they can be switched to a line
level signal. Phantom power is also available on
any of the 10 inputs. A signal appearing at input
1 will automatically mute the other channels
unless the mute function is defeated via a switch
on the front panel. Inputs 11 and 12 are for
auxiliary line-level sources such as tape or CD
players. Mono or stereo signals may be applied to
inputs 11 or 12. The left and right components of
a stereo signal can be applied to the dual RCA
phono jacks of these inputs and mixed together to
drive the built-in monaural power amplifier. A rear
panel paging input with gain control is provided for
the paging output of a telephone system. An audio
signal appearing at this input automatically mutes
all other inputs.
A preamplifier output jack and power amplifier
input jack permit the mixed output to be fed to
an external signal processor (graphic EQ or
compressor), and then returned to the built-in
amplifier. The preamp output may be used to
drive an additional power amp with its own set of
speakers without interrupting the function of the
built-in amplifier.
The MA-606 incorporates all of the features of
the MA-1206 and MA-1212 but provides four
combination balanced mic/line inputs and two
stereo summing inputs which makes the unit ideal
for smaller installations.
The speaker output is available at a barrier strip
which includes terminals for driving low impedance
loudspeaker loads, as well as 25, 70.7 or 100 volt
distributed systems.
• Balanced mic or line inputs – all available
with 24v phantom power!
• 2 auxiliary stereo summing inputs with 4 level
sensitivity adjustment.
• 60 or 120 watt models available.
• Balanced line level output for adding additional
power amplifiers.
• 24 volt powered operation available for
emergency power requirements.
• Adjustable level telephone paging input.
• Independently adjustable low power
monitor output.
• Integrated “rack ears” allow for rack mounting
without additional accessories.
COMMERCIAL MIXER
PAGING AMPLIFIERS
MA-606
MA Series of EV Professional Mixer/Amplifiers
MA-1212
Step Up To Electro-Voice®

Step Up To Electro-Voice®
© 2003 Telex Communications, Inc. Litho USA 2/03 ZM PA-20556-1
12000 Portland Ave. South, Burnsville, MN 55337
Phone: [phone] www.electrovoice.com
COMMERCIAL MIXER PAGING AMPLIFIERS
SPECIFICATIONS
AMPLIFIER SECTION MA-1212 MA-1206/MA-606
Output Power (at 1 kHz): 120 Watts 60 Watts
Frequency Response 50-15,000 Hz (±3 dB) 50-15,000 Hz (±3 dB)
Inputs Sensitivity/Impedance–
Inputs Mic Setting: 0.3 mV/600 Ohm (balanced) 0.3 mV/600 Ohm (balanced)
Inputs Line Setting: 75 mV/47 kOhm (balanced) 75 mV/47 kOhm (balanced)
Paging: -20 dB m/600 Ohm (transformer isolated) -20 dB m/600 Ohm (transformer isolated)
Power Amp In: 1 V/10 kOhm (unbalanced) 1 V/10 kOhm (unbalanced)
Auxiliary: 100 mV to 1 V (unbalanced) 100 mV to 1 V (unbalanced)
THD (at Rated Output): <1% at 1kHz <1% at 1kHz
Signal to Noise Ratio–
Mic: >52 dB >52 dB
Auxiliary: >65 dB >65 dB
Paging: >65 dB >65 dB
Power Amp In: >90 dB >90 dB
Line Output Level/Impedance–
Preamp Output: 1 V/1 kOhm (unbalanced) 1 V/1 kOhm (unbalanced)
Balanced Line Output: 500 mV/47 kOhm (unbalanced) 500 mV/47 kOhm (unbalanced)
Speaker Outputs: 4, 8 and 16 Ohm 4, 8 and 16 Ohm
25-, 70.7- and 100-Volt 25-, 70.7- and 100-Volt
Tone Controls–
Bass: +–10 dB at 100 Hz +–10 dB at 100 Hz
Treble: +–10 dB at 10 kHz +–10 dB at 10 kHz
Muting: 40 dB attenuation 40 dB attenuation
Protection: 3 independent Slo-Blo®fuses, 3 independent Slo-Blo®fuses,
primary A.C. and D.C. primary A.C. and D.C.
Power Dissipation: 390 watts MA-1206: 250 watts; MA-606: 220 watts
Power Supply: 108-132 V A.C., 50/60 Hz 108-132 V A.C., 50/60 Hz
Dimensions–
Height: 15.0 cm (5.9 in.) 15.0 cm (5.9 in.)
Width: 48.0 cm (18.9 in.) 48.0 cm (18.9 in.)
Depth: 32.0 cm (12.6 in.) 32.0 cm (12.6 in.)
Net Weight: 12.0 kg (26.5 lb) MA-1206: 9.0 kg (19.9 lb); MA-606: 8.5 kg (19.0 lb)
Shipping Weight: 12.7 kg (28.0 lb) MA-1206: 9.7 kg (21.4 lb); MA-606:
MA Series
These amplifiers are ideal
for use with the EVID ceiling
and surface mount speaker
products as well as the
extensive line of commercial
Paging horns and drivers.
EVID 4.2 EVID C4.2
PA-430T
Cobraflex III
Key Markets
and Applications
• Warehouses
• Shopping malls
• Retail stores
• Churches
• Office lobbies
• Hotel conference rooms
• Dentist/Doctor waiting rooms
... and any other installation
involving background music
and paging.
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