Pan Controls; Input Limiters; Lim Leds; Peak Leds - Sound Devices 442 Nordic User Manual And Technical Information

442/442N User Guide and Technical Information

Pan Controls

The Pan potentiometer controls the respective input's stereo image that is sent to the Stereo
Output bus. The 442 uses constant loudness pan controls, meaning that the signal is 3 dB louder at the
full-right or full-left positions relative to the center position. For most applications, the channel will be
panned either hard-left, hard-right, or center; the 442 features excellent "off-attenuation" of the channels
in the hard- left and right positions. The pan pot has a detent in the center position, and is calibrated at
the Sound Devices factory for a maximum difference of +/- 0.1 dB between the left and right output in
this position. The pan pot can be recessed to hide it from the mixing surface during normal operation.

Input Limiters

The Input Limiters act solely as "safety" limiters. Enabling the Output Limiters with the "LIM"
switch, located on the front panel, will also enable the Input Limiters.
Channel Limiters
In normal operation, with a properly set gain structure, the threshold of the Input Limiter will not be
reached. In the event of extremely high input signal levels, such as in high SPL environments, the Input
Limiter(s) will activate to prevent the input signal from clipping. Without Input Limiters, high signal
conditions can overload the channel causing distortion.
Sound Devices recommends that the Input limiters be engaged at all times. The Input Limiter does not
effect audio below the set threshold (just below clipping) in any way. When Input Channels 1 and 2 are
linked as a stereo pair, the Input Limiters also are linked and perform the same gain reduction equally
across the channels.

LIM LEDs

Each channel has an orange limiter LED which illuminates in proportion to the amount of limiting.
If the channel limiter LED illuminates substantially, reduce the amount of gain applied to the channel by
turning down the Gain (trim) pot.

Peak LEDs

Each channel has its own red Peak LED to indicate that the signal is 3 dB below the clipping level
of the respective channel. If the red Peak LED illuminates often, reduce the amount of gain applied to
the respective channel by turning down the Gain (trim) pot.

Polarity Reversal - Channel 2

Engaging the Polarity Reverse Switch inverts the polarity of Channel 2. Polarity reversal is often
used to quickly reverse the stereo fi eld in MS recording. The normal position is OFF, with polarity
reversal occurring when the switch is in the
Do not change channel 2's polarity while recording, audible pops occur when the switch changes states.
10
v. 5.07 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
entirely.
See Setup Menu to defeat the
position.