565E Dual Compressor/Limiter/Expander

CH1 EXPANDER CH1 COMPRESSOR CH1 LIMITER CH1 OUTPUT CH2 EXPANDER CH2 COMPRESSOR CH2 LIMITER CH2 OUTPUT

-18 -12 -6 -2 -25 -15 -12 -10 -8 -6 -4 -2 -12 -9 -6 -3 -20 -10 0dBuCLIP -18 -12 -6 -2 -25 -15 -12 -10 -8 -6 -4 -2 -12 -9 -6 -3 -20 -10 0dBu CLIP

565 E -12 -10 4 +5 0 STEREO LINK -12 -10 4 +5 0

DUAL IN STEREO IN
COMPRESSOR/ 0 -25 -25 +5 2.5 6 -3 +13 -10 +10 BYPASS DUAL MONO
0 -25 -25 +5 2.5 6 -3 +13 -10 +10 BYPASS

LIMITER/
EXPANDER
+10 BYPASS FAST SLOW -40 +20 FAST SLOW 1 10 -12 BYPASS -20 +20 +10 BYPASS FAST SLOW -40 +20 FAST SLOW 1 10 -12 BYPASS -20 +20
THRESHOLD (dBu) RELEASE THRESHOLD (dBu) RELEASE RATIO (X:1) THRESHOLD (dBu) GAIN (dB) THRESHOLD (dBu) RELEASE THRESHOLD (dBu) RELEASE RATIO (X:1) THRESHOLD (dBu) GAIN (dB)

M ULTIPLE AUDIO SOLUTIONS WORKING AS ONE. Compression, limiting, and

downward expansion clear up different but related audio problems. Whether you work
with vocal tracks, stage monitors, radio signals, paging systems or playback systems, it's likely that
APPLICATIONS

Recording
your audio needs more than one of these solutions. Symetrix delivers a one-box answer to your
Sound Reinforcement
dynamics processing needs. The 565E Dual Compressor/Limiter/Expander offers two channels of
simultaneous, in-line controls for all three types of dynamics processing. In addition, the 565E
Broadcast
employs a new circuitry design, Dynamics Squared™, for dramatically reduced distortion when
automatic gain reduction is at a maximum. Special Effects

The compressor and expander sections of the peaks that lead to overload problems, freeing
565E feature newly-developed circuitry, the compressor section for settings specific to
FEATURES
Dynamics Squared™. This proprietary design compression and not protection. (Trying to set
addresses a key problem: most analog compres- a typical compressor for both compression and In-line dynamics processing
sors use conventional voltage controlled peak protection usually results in less-than- includes downward expander,
amplifier topography, which creates added ideal settings.) The 565E's limiter protects compressor and limiter
distortion when compressing mid-band against sharp peak signals while the compres-
frequencies. Dynamics Squared™ resolves this sor smooths out the audio program for a silky, Dynamics Squared™ circuitry
problem by using circuitry that controls gain pleasing finish. controls gain while reducing
while reducing distortion. As a result, the 565E distortion
allows audio engineers to apply high levels of The 565E's sidechain allows users to alter all
compression and expansion with much less three processing sections for special applica- Stereo-coupled or two-channel
distortion. tions. Inserting an equalizer at the sidechain operation
can make the action of the 565E's compressor/
If background noise, tape hiss, or pickup hum limiter/expander frequency-dependent. Individual LED meters for each
is a problem, eliminate it with the downward Emphasize or de-emphasize a particular signal processing section and output
expander. The 565E uses a true downward range as the 565E responds more or less to
expander, not a so-called “soft gate”. The certain frequencies. Separate threshold controls for
expander, compressor and
565E's downward expander won’t chop off the
transients and decays like a gate would, yet it Regardless of what your audio challenges may limiter

can work just as effectively for reducing those be, the 565E offers a powerful variety of
solutions. In-line compression, limiting, and Sidechain input/output
noises between sounds.
expansion produce clean, clear audio in any
Balanced XLR and unbalanced
While the downward expander quiets un- situation. Innovative circuitry permits users to
¼" line level connections
wanted noise, the 565E’s compressor section choose optimal settings without paying the
allows you to apply the right amount of price of extra distortion. The 565E Dual
compression without pumping or breathing. Compressor/Limiter/Expander: One box,
The separate limiter section guards against multiple audio solutions.•

Symetrix Inc. Mountlake Terrace, WA, USA Tel (425)778-7728 Fax (425)778-7727 www.symetrixaudio.com
565E
565E Dual Compressor/Limiter/Expander

565 E DUAL COMPRESSOR/

LIMITER/EXPANDER
CHANNEL 2 OUTPUT SIDECHAIN CHANNEL 2 INPUT
TYPICAL CONNECTIONS
CHANNEL 1 OUTPUT SIDECHAIN CHANNEL 1 INPUT

AC INPUT BALANCED/ KEY BALANCED/ BALANCED 2 1

GROUND=PIN 1
LOW(-)=PIN 3
1 2 BALANCED BALANCED/ KEY BALANCED/
3 3
15 WATTS UNBALANCED INPUT UNBALANCED INPUTS
HIGH(+)=PIN 2
OUTPUTS UNBALANCED INPUT UNBALANCED
MANUFACTURED IN LYNNWOOD, WASHINGTON USA
MAXIMUM
1/4"BALANCED SIDECHAIN
SLEEVE=GROUND GROUND
RING=LOW(-) SIDECHAIN OUT
FABRIQUÉ AUX E.-U. PAR SYMETRIX INC., LYNNWOOD, WA USA.
BALANCED BALANCED TIP=HIGH(+) KEY INPUT BALANCED BALANCED
RÉFÉREZ TOUTE RÉPARATION À UN TECHNICIEN QUALIFIÉ.

SPECIFICATIONS Specifications subject to change without notice.

Input/Output Limiter
Maximum Input Level +20 dBu Balanced Attack Time 100 µS
Maximum Output Level +22 dBu Balanced Release Time 100 mS
+18 dBu Unbalanced Threshold -12 dBu to +22 dBu
Input Impedance 20k Ohms Balanced, 10k Ohms Unbalanced Ratio 20:1
Output Impedance 200 Ohms Balanced, 100 Ohms Unbalanced
CMRR Greater than 40 dB Expander
Attack Time 4 mS
Performance Data Release Time 250 mS to 5 S
Frequency Response 10 Hz to 60 kHz +0, -3 dB Threshold +10 dBu to -40 dBu (true bypass)
Dynamic Range 115 dB (difference of max output and noise floor) Ratio 1:1.5
THD+Noise < .02%, +4 dBu in, +4 dBu out, 0 dB gain reduction,
20 Hz to 20 kHz, 30 kHz low-pass filter Connections
System Gain Control ±20 dB center detent Input XLR, ¼" TRS
Output Noise -90 dBu measured at balanced output, Output XLR, ¼" TRS
input terminated in 600 Ohms, 20 kHz rolloff in analyzer Sidechain ¼" TRS (one per channel)
Crosstalk -95 dB 1k, -95 @ 10k, +4 dBu in, Polarity pin 2 of XLR is hot, tip of TRS jack is hot
remaining channel terminated in 600 Ohms,
20 kHz rolloff in analyzer Physical
Sidechain 500 Ohms source impedance, 10k Ohms input impedance, Size (hwd) 1.72 x 19 x 8 inches, 4.37 x 48.26 x 20.32 centimeters
TRS jack, tip is return Shipping Weight 8 lbs (3.6kg)

Compressor Electrical
Type RMS responding Power Requirements 120V AC nominal, 60 Hz, 15 watts
Attack Time 2 mS 220V AC nominal, 50 Hz, 15 watts
Release Time 180 mS to 2.5 S
Threshold -40 dBu to +20 dBu
Ratio 1:1 to 10:1

565E ARCHITECTS AND ENGINEERS SPECIFICATIONS

The Compressor/Limiter/Expander shall be The Compressor/Limiter/Expander shall XLR (AES/IEC standard wiring), and ¼" a 20 kHz noise bandwidth, input
a dual channel model that controls the contain an integral peak limiter having a TRS jack. The input circuitry shall terminated in 600 ohms.
dynamic range of wide range, wideband 20:1 ratio and adjustable threshold level. A incorporate RFI filters. The outputs shall Access to each channel’s sidechain shall
audio signals, providing compression, four segment LED display shall be be active balanced designs having equal be provided via a single 1/4" TRS female
peak limiting, and downward expansion provided to indicate the amount of peak source impedances and terminated with connector. The ring connection shall be
simultaneously. The unit shall occupy one limiter activity. 3-pin XLR (AES/IEC standard wiring), and the sidechain output and the tip
rack space (1U). A front panel switch, with LED indicator, ¼" TRS jack. connection shall be the sidechain return.
The threshold of the compressor section shall select between dual mono and stereo The balanced inputs shall accommodate The unit shall be capable of operating by
shall be adjustable over a range of -40 dBu master/slave operation. Each channel shall +20 dBu signals without distortion, and means of its own built-in power supply
to +20 dBu via a front panel control. The have a bypass switch which defeats all the balanced outputs shall be capable of connected to 117V nominal AC (105 to
input-to-output ratio will be adjustable front panel controls for that channel. delivering +22 dBm into a 600-ohm load. 130V) 50/60 Hz (230V nominal, 207 to
from 1:1 to 10:1. Control of the The Compressor/Limiter/Expander shall Overall frequency response shall be 10 Hz 253V AC, 50 Hz where applicable). The
compressor release time shall be set by also contain a downward expander having to 60 kHz (+0 dB, -3 dB). THD+N shall be unit shall be listed by Underwriters
the front panel release control. The a 1:1.5 expansion ratio with threshold, and less than 0.02% measured under the Laboratories, Inc. (UL) or other equivalent
compressor section will have a dedicated release time controls. A four segment LED following conditions: +4 dBu input, nationally recognized safety testing
eight segment LED ladder that will display display shall be provided to indicate the +4 dBu output, BYPASS switch out, 20 Hz agency.
the gain reduction amount. amount of downward expansion. to 20 kHz, 30 kHz low-pass filter, 0 dB The unit shall be a Symetrix, Inc. model
The inputs shall be active balanced gain reduction. Residual noise output shall 565E Dual Compressor/Limiter/Expander.
bridging designs terminated with 3-pin be no greater than -90 dBu, measured with

565E Publication ©1998 Symetrix, Inc. Symetrix Inc. Mountlake Terrace, WA, USA Tel (425)778-7728 Fax (425)778-7727 www.symetrixaudio.com