527E
1
Introduction
Chapter 1
Front panel
Rear panel
+15
POWER
0
dB
-15
1.5
OCT
HIGH EQ
.3
4
BANDWIDTH
CUT/BOOST
Hz
6.8K
FREQUENCY
22K
680
0
dB
+15
1.5
OCT
4
.3
6.3K
BANDWIDTH
MID EQ
-15
CUT/BOOST
160
0
(dB)
-15
+15
CUT/BOOST
1.5
(OCT)
LOW EQ
4
.3
(Hz)
160
FREQUENCY
500
16
BANDWIDTH
Hz
2.5K
FREQUENCY
42K
18K
65K
5K
50
FILTERS
3K
260
115
HIGH CUT (Hz)
22
6
8
GAIN
0
+15
FILTERS
EQ/
EXP/COMP
IN
BYPASS
BYPASS
LOW CUT (Hz)
0
CLIP
-15
-20
-10
10
RATIO
2
X:1
1
-10
6
3
-40
12
9
-25
0
GR
+20
COMPRESSOR
THRESHOLD
OUTPUT
6
3
GR
20
12
LINE
INPUT
MIC
60
MUTE
MIX
(dB)
CLIP
20
E
MIC GAIN
VOICE
527
PROCESSOR
BYP
EXPANDER
THRESHOLD
-15dB
0dB
MIC
MIC PAD PHANTOM
ON
OFF
INPUTS
LINE
MUTE CONTROL
LINE
NC
MIC
LINE
LINE
MANUFACTURED BY SYMETRIX INC.
LYNNWOOD, WA USA
THIS PRODUCT CONTAINS NO
USER SEVICEABLE PARTS.
E
PROCESSOR
VOICE
527
FABRIQUÉ AUX E.-U. PAR SYMETRIX INC., LYNNWOOD, WASHINGTON.
RÉFÉREZ TOUTE RÉPARATION À UN TECHNICIEN QUALIFIÉ.
15 WATTS
MAXIMUM
AC INPUT
OUTPUTS
The Symetrix 527E traces its heritage back to the Symetrix 528, the first signal processor specifically
designed for voice applications. Revered as the rackmount equivalent of a studio console strip, the
classic 528E is still the most widely-used voice processor in the broadcast industry. To this
benchmark design, we added new controls and connections, and we refined it according to the
needs of installed sound applications. The result: An ideal product for installations requiring great
sounding key microphones. When used on announcement mics in stadiums and gymnasiums,
wireless and lapel mics in church systems, and paging mics in acoustically challenging
environments, the 527E provides voice-optimized processing from the company than invented it.
Simply stated, the 527E consists of a high-quality microphone preamp coupled to a three-band
parametric equalizer, high and low pass filters, and a dynamic range processor.
The dynamic range processor combines an interactive compressor/limiter and a downward
expander. Typically, the downward expander helps reduce background noise as well as the artifacts
of close miking. The compressor/limiter gives you overall control over the dynamic range of the
output signal and helps maintain a high overall signal level.
The filter section of the 527E features tunable low cut and high cut filters. These 12 db per octave
filters allow the user to remove objectionable low frequency noises, such as rumble and muddiness,
and high frequency noises, such as sibilance and air conditioning noise.
The three-band parametric equalizer is a reciprocal-curve design. Each band is connected in series
with the next to ensure that each filter band sums with its neighbors smoothly.
The 527E accepts both mic and line inputs. The microphone input uses a balanced transformerless
design. It works with any phantom-powered condenser microphone or any low-impedance micro-
phone having a balanced, floating output. The line input also uses a balanced transformerless
design and its matched resistors permit the 527E to attain a high, wideband, CMRR (common-mode
rejection ratio). Multistage RFI filters prevent radio frequency interference problems. The 527E’s
output section can drive balanced loads at line or mic levels.
We recommend that you read this manual from cover to cover. Somewhere between the confines of
the two covers you should find the answers to most (98%) of your questions. Should you have
any comments or questions, please do not hesitate to contact us at the numbers/addresses below.
Your calls are always welcome.
Phone:
(425) 787-3222
Fax:
(425) 787-3211
Email:
Website:
www.symetrixaudio.com
Содержание 527E
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