Specifications

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In the interest of keeping the Mjr Mixer design simple and up to date with today’s
technology, we have not offered “12T” or “AB” microphone powering. Although
some “12T” microphones are still in existence, all new microphone designs are
48PH.
D. LOW CUT FILTERS
Each input channel of the Mjr Mixer is equipped with a HP (high pass) filter.
These filters are activated via the switches located below the adjacent channel
fader knobs. These filters will attenuate all frequencies below 80Hz at a rate of
6dB per octave. High Pass filtering is important in location recording where wind
noise can cause pre-amplifier overload. This effect can be minimized by
switching in the High Pass filter.
E. CHANNEL GAIN
In order to limit noise and increase headroom, the channel fader controls are
located in the feedback path of the pre-amplifiers. This provides continuously
variable gain rather than just a decrease in channel output level when an
overload situation occurs. This results in increased headroom and lower chance
of signal clipping (severe distortion).
F. CHANNEL PANS
The new Mjr. Audio Mixer contains front panel mounted pan switches. These
pan switches are used to route the individual input channel’s signal to either the
left or right summing buss. These switches also have center position that allows
audio to be fed to both left and right summing amps.
OUTPUTS:
A. BALANCED OUTPUT AMPLIFIERS
The Mjr Mixer contains high quality, electronically balanced output circuitry.
These outputs are switchable between line or microphone levels. At the line
level setting, the mixer outputs deliver a nominal 0dBv signal into 10K Ohm
loads. When set to microphone level, the outputs supply –45dBv signal levels.
Please note that 10K Ohm loads are typical of the loads imposed on the mixer by
most Betacams, and other recording devices. Additionally, the Mjr Mixer’s
outputs are capable of driving 600 Ohm loads.