Symetrix 421m, Руководство пользователя

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421m
4
Front panel view (right)
OUTPUT LIMITER THRESHOLD LED
-
Indicates peak limiting activity.
OUTPUT LIMITER THRESHOLD - Sets the threshold of the peak (ceiling) limiter. This works in
conjunction with the leveler s ratio and target output level controls. The 421m will not allow the
peak limiter to be set higher than the setting of the target output level control. If you think about it,
it would make no sense if you allowed peaks past the target output level.
SPEECH CURVE FILTERS - The high pass filter (button on the left) has a 12 dB/octave rolloff and
the low pass filter (button on the right) rolls off at 24 dB/octave.
STEREO LINK - Sets the master/slave relationship between 2 units. The normal setting is IN.
BYPASS BUTTON - This control hard-wire bypasses the 421m. If STEREO LINKED, all linked
(slave) units revert to bypass when the bypass button on the master unit is out. On any individual
slave unit that has been STEREO LINKED (STEREO LINK button OUT), this button has no effect.
INPUT LED - This meter indicates the input signal level to the 421m. It is a VU calibrated peak
reading meter.
OUTPUT LED - This meter indicates the output signal level of the 421m. It is a VU calibrated peak
reading meter.
OUTPUT LEVEL
SYSTEM SPEECH CURVE OUTPUT LIMITER
BYPASS BYPASS
IN IN
125Hz 6kHz
-54
-54 CLIP
E
-48 -42 -36 -30 -6 -12 -18 -24 +12 +6 0VU
IN BYPASS
BYPASS STEREO LINK
0
BYPASS
-15
THRESHOLD (Vu)
-8 +15
LIMIT
SLAVE
MASTER
0VU +6 +12 -24 -18 -12 -6 -30 -36 -42 -48
INPUT LEVEL
IN
BYPASS
VEL
OUTPUT LIMITER
THRESHOLD LED
OUTPUT LIMITER THRESHOLD control
SPEECH CURVE filters
(125 Hz high pass,
6kHz low pass)
STEREO LINK button
BYPASS button
INPUT LED meter
OUTPUT LED meter