Symetrix 425 Specifications

-18 -12 -6 -2 -25 -15 -12 -10
EXPANDER
THRESHOLD (dBu) RELEASE THRESHOLD (dBu)
-20 -10
-5 -30 -25
+5 BYPASS FAST SLOW -40 BYPASS
I
N DESIGNING THE 425 DUAL COMPRESSOR/LIMITER/EXPANDER, Symetrix engineers
aimed for audio control that would work for a variety of audio applications. Providing you
with the right combination of tools is what IDP (Integrated Dynamics Processing) is all about. IDP
makes all three processing modes (compression, limiting, and downward expansion) available all
the time: no switching between sections, no patching in extra boxes.
If background noise, tape hiss, or pickup hum
is the problem, eliminate them with the
downward expander. The 425 uses a true
downward expander, not a so-called "soft
gate". A downward expander won't chop off
the transients and decays like a gate would, yet
it can work just as effectively for reducing
those noises between sounds. A noise gate
works like an on/off switch while a true
downward expander works like an engineer
riding a fader, following the signal as it decays.
While the downward expander is taking care of
the noise, the 425's compressor section allows
you to apply the right amount of compression
from a gentle squeeze to a hard squash without
"pumping" or "breathing". And because the
separate limiter section is guarding against
peaks that would cause problems, it frees the
compressor section to be set for the job of
compression and not protection. Trying to set a
typical compressor for multiple jobs like this
usually results in settings that aren't optimized
for either application. The limiter protects
Symetrix, Inc. • Lynnwood, WA USA • Tel 425-787-3222 • Fax 425-787-3211 • www.symetrixaudio.com Symetrix, Inc. • Lynnwood, WA USA • Tel 425-787-3222 • Fax 425-787-3211 • www.symetrixaudio.com Symetrix, Inc. • Lynnwood, WA USA • Tel 425-787-3222 • Fax 425-787-3211 • www.symetrixaudio.com Symetrix, Inc. • Lynnwood, WA USA • Tel 425-787-3222 • Fax 425-787-3211 • www.symetrixaudio.com Symetrix, Inc. • Lynnwood, WA USA • Tel 425-787-3222 • Fax 425-787-3211 • www.symetrixaudio.com
425 Dual Compressor/Limiter/Expander
-8 -6 -4 -2 -12 -9 -6 -3 -20 -10 0VU CLIP
COMPRESSOR LIMIT
RELEASE RATIO (X:1) THRESHOLD (dBu) GAIN (dB)
2 +5 +10
+10 1.3 2.5 -2.5 +12.5 +5
FAST SLOW 1 10 -10 BYPASS 0 +20
against problems and the compressor smooths
signals out for a silky, listenable finish.
Symetrix uses powerful, streamlined controls
that make the 425 easy to set up and operate.
Appropriate parameter adjustments allow you
to match the settings to the situation. You
decide the way you want the 425 to react to
the signals, not some predetermined ratios or
thresholds.
The 425 is easy to install, providing both XLR
balanced and ¼" line level connectors. The UL
approval means that it can fit into any
installation with confidence.
In the final analysis, Integrated Dynamics
Processing means clean, quiet sound that meets
professional demands in any situation. High-
quality components and "minimal signal path"
circuitry make the 425 exceptionally transpar-
ent. The Symetrix name on the front panel
guarantees it all. •
DUAL STEREO -18 -12 -6 -2 -25 -15 -12
OUT EXPANDER
LINK
THRESHOLD (dBu) RELEASE THRESHOLD (dBu)
-20 -10
IN STEREO
BYPASS DUAL MONO
+15 -5 -30 -25 +10
+5 BYPASS FAST SLOW -40 BYPASS
-10 -8 -6 -4 -2 -12 -9 -6 -3 -20 -10 0VU CLIP
COMPRESSOR LIMIT
RELEASE RATIO (X:1) THRESHOLD (dBu) GAIN (dB)
2 +5 +10
1.3 2.5 -2.5 +12.5 +5
FAST SLOW 1 10 -10 BYPASS 0 +20
APPLICATIONS
Recording
Sound Reinforcement
Broadcast
Special Effects
FEATURES
Integrated Dynamics
Processing includes downward
expander, compressor and
limiter
Stereo-coupled or two-channel
operation
Individual LED meters for each
processing section and output
Separate threshold controls for
expander, compressor and
limiter
Sidechain input/output
Balanced XLR and unbalanced
¼" line level connections
425
OUT
IN
BYPASS
+15