Symetrix 562E User Manual

Windowing expander/gate

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562E

Windowing

Expander/

Gate

Table of Contents

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Summary of Contents for Symetrix 562E

Page 1 562E Windowing Expander/ Gate...
Page 2: Table Of Contents
Subject to change at our whim and fancy without notice. ©1997, Symetrix, Inc. All right reserved. Symetrix is a registered trademark of Symetrix, Inc. Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Symetrix assumes no responsibility with regard to the performance or use of these products.
Page 3: Chapter 1 Introduction
“drop off” that occurs in most gates at the end of the release cycle. In the 562E the GATING: Gates may be used to clean up signal smoothly and continuously decreases at...
Page 4: Chapter 2 Operator Safety Summary
Identifies information that, if not for persons who operate the equipment as well heeded, may cause damage to the as repair personnel. Specific warnings and 562E or other equipment in your cautions are found throughout this manual system. wherever they may apply.
Page 5: Chapter 3 Fast Setup
TTACK ELEASE suit the audio that is being fed to the 562E. Percussive sounds usually call for fast attack, hold and release times; speech and music generally work best with slower times. You can make the expander/ gate stay open for momentary lapses in signal by increasing the setting of the R...
Page 6: Chapter 4 Front Panel Overview
Use the H control to rolloff high frequencies that you do not want the 562E to use for control (example: use it to filter out the hi-hat cymbals when you are using the 562E to gate the toms on a drum set).
Page 7 RELEASE signal rises above threshold. The “A ” A TTACK TIME TIME TIME setting is meant to be used in conjunction with the 562E’s 60ms 1 Sec 500ms feature, to give you an effective attack INDOW DVANCE time of zero.
Page 8: Chapter 5 Rear Panel Overview
1=ground, Pin 2=high(+) and Pin3=low(-). Use this connector when you need a balanced XLR output. The nominal signal level here is +4 dBu. The wiring diagram for the B ALANCED UTPUT connector is reproduced on the back panel of the 562E. - 1/4-inch tip-ring-sleeve connector, wired tip=return, ring=send and NPUT SIDECHAIN sleeve=ground.
Page 9: Chapter 6 The Controls In Detail
-10dBu, then every time that the input signal to the 562E drops below -10dBu, the gate of the 562E will drop the signal by 80dBu. Thus an input signal of -12dBu would result in -92dBu at the output of the gate. Obviously, when the input signal level is so low that engaging the gate causes it to drop to a level that is lower than the noise floor of the unit, the output signal level of the 562E will no longer decrease by 80dBu from the input signal level.
Page 10 Since much of the audio signal in this case occurs at the moment of impact, a gate that opens slowly would miss most of the audio signal. Note The fastest attack time setting on the 562E is the “AUTO” position, which is meant to be used in conjunction with the W eature. The 562E’s W...
Page 11 NPUT provides access to the part of the circuitry that tells the VCA what to do. The 562E’s sidechain is routed through a TRS jack labeled K , which is located on the rear panel.
Page 12 Listening to the EQ’d key/sidechain signal allows you ISTEN W ILTER to hear the signal that will control the 562E, and to more easily find the range that you wish to emphasize or de-emphasize. When you are done listening to the EQ’d key/sidechain signal, return the O switch to the G .
Page 13: Chapter 7 Connecting To Other Gear
Symetrix equipment inputs are designed to bridge the output of whatever device drives the input (i.e. to be greater than 10 times the actual source impedance). Symetrix equipment outputs are designed to drive 600-ohm or higher loads (600-ohm loads are an archaic practice that won’t go...
Page 14 2 to 200 times the output source impedance) . Signal Levels The 562E is designed around studio/professional line levels: +4 dBu or 1.23 volts RMS. The unit is quiet enough to operate at lower signal levels such as those found in semipro or musical-instrument (MI) equipment (-10 dBu or 300 millivolts).
Page 15 In an emergency (the show must go on), you can ground pin 3, but if you have the choice...leave it open. If you must ground pin 3, it is must be grounded at the 562E, rather than at the other end of the cable.
Page 16: Chapter 8 Applications
For sound reinforcement, the 562E is useful for tending an announce mic that needs to be left on, when you really don’t want it picking up every whisper in its vicinity or going into feedback.
Page 17 First, and foremost, employ good mic technique to reject as much of the sound that is causing the false triggering as possible. Start with the 562E’s L knob in the full counterclockwise...
Page 18 Gated Reverb You knew this was coming, didn’t you? The obvious method to gate reverb is to feed the reverb to the input of the 562E, and to use the internal triggering. However, if you use a H setting that is too short, you can run into jitter problems when the reverb signal starts to decay.
Page 19 Simply write your midi program so that the synthesizer is playing a note for the duration of the time that you want the 562E to be passing...
Page 20 562E’s can be used to gate the subgroup outputs. When using the 562E on the main output(s) of the console, use gating with a mid to slow release time, or use downward expansion.
Page 21: Chapter 9 Troubleshooting
562E is a line level signal, not mic level. Check gain settings on downstream equipment. The system gain structure should be such that the 562E operates at or near unity gain. Is the input signal already noisy?
Page 22: Chapter 10 Specifications
+0, -3dBm, 10 Hz to 40 kHz In the interest of continuous product improvement, Attack time Program Dependent to Symetrix, Inc. reserves the right to alter, change, or 300 milliseconds modify these specifications without prior notice. Attenuation 80 dB max, adjustable...
Page 23: Chapter 11 Warranty And Service
Final Warranty Registration must be completed determination of warranty coverage lies and mailed to Symetrix within thirty (30) days solely with Symetrix. Products repaired of the date of purchase. under warranty will be returned freight...
Page 24 Servicing the 562E If you have determined that your 562E requires repair services and you live outside of the United States please contact your local Symetrix dealer or distributor for instructions on how to obtain service. If you reside in the U.S. then proceed as follows: At the Symetrix factory, Symetrix will perform in-warranty or out-of-warranty service on any product it has manufactured for a period of five years from date of manufacture.
Page 25: Chapter 12 Declaration Of Conformity
Mountlake Terrace, WA, 98043 The authorized representative located within the European Community is: World Marketing Associates P.O. Box 34 Newquay, Cornwall, TR7 1TU, U.K. Date of issue: 15 June, 1997 Place of issue:Mountlake Terrace, Washington, USA Authorized signature: Dane Butcher, President, Symetrix Incorporated.
Page 26 Symetrix, Inc. 6408 216th St. SW Mountlake Terrace, WA, 98043 Tel: (425) 778-7728 Fax: (425) 778-7727 Website: http://www.symetrixaudio.com Email: symetrix@symetrixaudio.com...