Peak Leds; Polarity Reversal - Channel 2; Stereo Link On - Channels 1 And 2; Stereo Link Ms - Channels 1 And 2 - Sound Devices 442 Nordic User Manual And Technical Information

a properly set gain structure the threshold of the channel limiter will not be reached. If extremely high input
signal levels exist, such as in high SPL environments or with misadjusted settings, the channel limiter(s) will
activate to prevent the input channel from clipping. Without a channel limiter, high signal conditions would
overload the channel and cause distortion. It is recommended that the channel limiters be used at all times. Be-
low the set threshold (just below clipping), the limiter does not affect the sound in any way.
When input channels 1 & 2 are linked as a stereo pair, their channel limiters also link to perform the same gain
reduction to both channels equally. Each channel has an orange limiter LED which illuminates in proportion to
the amount of limiting. If the orange LED for a channel comes on substantially, it is recommended to turn down
the Gain.

Peak LEDs

Each channel has an indication of peak signal activity. When a channel approaches 3 dB below its clipping level,
the red Peak LED illuminates. If the red Peak LED for a channel comes on often, it is recommended to turn
down the Gain.

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 Θ position.
Do not change the polarity of channel two during recording, since a pop occurs when the switch changes states.

Stereo Link ON - Channels 1 and 2

When Stereo Link is set to ON, input channels 1 and 2 are turned into a single, stereo pair controlled by channel
one's fader. The Pan control for channel 1 becomes a balance control between left and right. The Fader and Pan
on channel 2 are disabled. Channel 1 and 2's trim level and high-pass fi lters remain active on their respective
signals. When linked, channel 1 & 2's channel limiters are also linked.

Stereo Link MS - Channels 1 and 2

When Stereo Link is set to MS, input channels 1 and 2 are linked as an MS pair where input 1 is the Mid signal
and input 2 is the side signal. The Channel 1 Pan Control functions as a left/right balance control for the ma-
trixed MS signal. The Fader and Pan on channel 2 are disabled. The Gain Trims and high-pass fi lters still act
individually. The Gain Trim controls for inputs 1 and 2 can be used to vary the Mid and Side levels respectively.
When linked, channel 1 and 2's channel limiters are also linked.

PFL (Channel Solo Monitoring)

When the momentary PFL switch is activated the channel audio is routed (in mono) to the headphones. This
signal is post-trim, post high-pass, post-limiter, and pre-fade. From the factory the left meter indicates the signal
level of the channel. PFL monitoring does not disrupt audio sent to the master outputs. The PFL metering func-
tion can be deactivated in the Setup Menu.-3. The 442 provides selectOutputs
The 442 is a two-bus mixer with several outputs - essential for multi-camera, multi-source productions. Because
each input can be continuously panned from left to right, the mixer can be used with either two mono buses or
with a single stereo bus.

Master Gain Control

A single master gain control adjusts the overall output level of the left and right outputs. The gain range of the
Master is from complete attenuation (master outputs off) to +6 dB of gain. For most applications the Master con-
trol should be set at the unity gain (0) position. The master gain is on a pop-up knob so it can be set and hidden
from the main surface so inadvertent adjustments are avoided.
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