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D.
TRANSCRIPTION OUTPUTS (AUX OUTPUTS)
The AlphaMix also contains two outputs used to feed transcription recorders,
wireless feeds, etc. These connectors are located directly above the main XLR
outputs. They are 3.5mm Stereo connectors wired as follows: Tip = Left, Ring is
Right, Sleeve = Ground.
microphone level (-10dBv, -50dBv). This allows these outputs to be used with
virtually all external equipment.
E.
HEADPHONE OUTPUT
The Headphone output is located on the left side panel of the mixer.
AlphaMix's headphone amplifier circuitry is designed to drive virtually any
headphone with an impedance rating of 32 to 600 Ohms.
circuitry is controlled by the use of two switches and a convienient front panel
mounted volume control. The two switches are used to control what the operator
listens to. The most commonly used switch is a rotary switch located on the front
panel and is used to allow the operator to choose between monitoring left to both
ears, normal stereo, right channel to both ears, mono or MS decoding.
(L,S,R,M,MS) This feature is an improvement over previous M4 designs. The
AlphaMix also contains tape returns allowing monitoring from two cameras.
*SAFETY NOTE*
BEFORE PLUGGING IN YOUR HEADPHONES.
F.
TAPE RETURNS
The AlphaMix is equipped with two tape returns used to monitor tape confidence
heads from any two recording devices such as Betacams. These tape monitor
amplifiers can be adjusted to match the signal levels of most any device. These
levels are adjusted using a small jewelers screwdriver (or "Greenie" screwdriver).
The adjustment points are located on the bottom panel of the AlphaMix. The
tape/direct switch is located on the upper right hand corner of the front panel.
When set to "D" (Direct) the phone amplifiers to monitor the mixers output signal.
If switched to "Camera A" (Tape), then the phone amplifies monitor the external
source such as the Betacam that is connected to the multi-pin labeled Camera A.
When set to "Camera B" the headphones monitor the Betacam connected to the
multi-pin labeled "Camera B"
METERS:
A.
PEAK READING METERS
The AlphaMix is equipped with a custom made LCD meter. We designed this
meter to be easy to read and camera emulating. Because the most common use
of this type of mixer is with Betacams, we designed the AlphaMix's meters to
emulate the peak reading attributes found on many Betacams. In this manner,
you can be confident of your recording levels even when the Betacam is being
fed via Betasnake cable or wireless transmission. The LCD meter also displays
Left and Right Limiter functions as well as Low Battery Warning. When the "Lo
The output signal level is switch-able line or
ALWAYS TURN DOWN THE HEADPHONE VOLUME
9
The
The headphone
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