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1. GAIN switch (HI / LO) for TIP-L / RING-R unbalanced inputs
a. Use LO setting when input is being used as a Playback Monitor
2. MIC / LINE switch settings for XLR-L / XLR-R balanced inputs
3. GAIN switch (HI / LO) for XLR-L / XLR-R balanced inputs
4. Phantom (PH) power switch. Generates either 48V or 12V in the power
supply circuitry.
b. Phantom voltage is not applied to the XLR input until the PH: ON /
OFF switch is set to ON for the corresponding XLR-L / XLR-R
balanced input
c. Mics which work from 12V phantom power can considerably extend
battery life
5. PH: ON / OFF switch routes the phantom voltage generated by the power
supply circuit to the corresponding XLR-L / XLR-R balanced input
d. Only apply phantom power to condenser mics which require phantom
voltage
e. Never apply phantom power to unbalanced mic sources (wireless
mics, etc.) or mixing boards.
6. MONO combines the right and left inputs and presents the combination to
each of the right and left outputs. STEREO leaves the right and left inputs
separated, and only the corresponding input signal is presented to each the
of the right and left outputs.
7. PAN TO L combines the right and left input channels, and presents the
combination to the left output channel.
8. METER sensitivity switch
f. HI to be used when either you have manual control of the camera
gain, and have throttled back its noisy gain, or if your are using the
AGC Disable feature of the DT454 to force the camera gain to throttle
back. This setting is most commonly used for typical operation.
g. LO setting when camera AGC is running with no efforts to throttle it
back
9. AGC DISABLE feature of the DT454, to improve signal to noise
performance on cameras which do not have manual control
h. TONE injects a ~20kHz tone into the camera’s right track, to spoof its
i. Safety Mode NOISE AGC Disable approach injects a broadband noise
signal into the camera’s right track to spoof its AGC algorithm into
throttling back its noisy gain.
10. ¼-20 thread for mounting DT454 on top of a tripod (etc).
11. Hex key receptacle. USE HEX KEY (included) HERE TO TURN ¼-20
SCREW INTO CAMERA FOR MOUNTING TO BOTTOM OF CAMERA.
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