Crest Audio CENTURY SERIES LMX Manual
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Crest Audio CENTURY SERIES LMX Manual

Century series
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E N T U RY
E R I E S
LMx
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M
WNER
S
ANUAL

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Summary of Contents for Crest Audio CENTURY SERIES LMX

  • Page 1 E N T U RY E R I E S ’ WNER ANUAL...
  • Page 2 Congratulations on your purchase of a Century Series console. All of us at Crest Audio in Paramus, New Jersey, USA, support your decision, knowing your console contains the finest combination of design and manufacture in the industry. While your new Century Series console is one of the most feature-packed available, great effort has been put into making it simple to operate.

  • Page 3: Table Of Contents

    ABLE OF O N T E N T S Feature Overview A brief description of the LMx design, features and functions. System Connections Contains diagrams illustrating conventional system connections. Wiring Conventions Contains diagrams indicating how connectors for Crest consoles are wired. Power Supply A brief description of the rack-mountable Century Series consoles power supply.

  • Page 4: Feature Overview

    ENTURY ERIES Feature Overview • SSM/PMI High quality devices on balanced During quieter pauses between performances, an integrated microphone/line inputs and on all outputs for uncompro- compressor-gate automatically opens the room ambience mised audio quality and reliability. All IC’s within the audio microphones.

  • Page 5: System Connections

    ENTURY ERIES System Connections Proper connection and component relationships are vital to assure accurate operation and results. The following diagrams illustrate conventional system connections. LEFT MONITOR INSERT INSERT INSERT INSERT INSERT LEFT ALT MON EVEN EVEN EVEN EVEN 6001 EXT TB Professional Power Amplifier INSERT INSERT...
  • Page 6 ENTURY ERIES System Connections (cont'd) INSERT INSERT INSERT INSERT INSERT LINE IN LINE IN LINE IN LINE IN LINE IN Signal Processors PIN 1 PIN 1 PIN 1 PIN 1 PIN 1 LIFT LIFT LIFT LIFT LIFT Insert Send/Return Connection Front of House Console From Stage...

  • Page 7: Wiring Conventions

    ENTURY ERIES Wiring Conventions Since the same connectors are used throughout the professional audio industry, it is important to know how the connectors for Crest consoles are wired. Wiring is as follows: INPUT XLR OUTPUT XLR PIN 1 PIN 2 PIN 3 PIN 3 PIN 2...

  • Page 8: Power Supply

    Century Series consoles use a separate rack-mountable power supply which provides the specific voltages used by each console. Crest Audio’ Century Series makes use of two different power supplies. Both frame sizes (52 & 64 space) of the LMx console should only be used with the Model XCVA06 Power Supply.

  • Page 9: Power Connections

    Pin 4 Analog + 24V @ 6 Pin 5 Digital 20V @ 6 Pin 6 +48V To AC Mains A division of Crest Audio Inc. 100 Eisenhower Dr. Model XCVA06 Pin 7 -20V Paramus, New Jersey 07652 USA Interface Cable...

  • Page 10: Lmx Input Module

    ENTURY ERIES LMx Input Module 40 or 52 identical input modules are fitted. LINE Module features are described ‘top down’. Ø PAD switch GAIN Reduces the incoming audio level, before the pre-amp, by approximately 15dB. LINE switch EQ ON Input select. Default is MIC XLR.
  • Page 11 ENTURY ERIES MIX SEND CONTROLS (cont'd) Input Module Rear Panel Use the GLOBAL LEVEL/PAN switch on GROUP module to DIRECT OUTPUT connector change to stereo mix configuration. There is a LEVEL-PAN 1/4" unbalanced jack, +4dBu, post fader. Carries the direct out- switch for each pair of outputs.

  • Page 12: Lmx Group Module

    ENTURY ERIES SOLO EVEN LMx Group Module GROUP — All LMx models include 10 similar GROUP modules that are internally assigned to provide mix outputs 1 - 20 and associ- ated functions. Module features are described ‘top down’. LINE INPUT Stereo EQ FROM INPUT MODULE –...
  • Page 13 ENTURY ERIES SOLO switches with indicators Outer = R to Even # mix Refer to OPERATIONS for examples of subgrouping. For odd and even mixes. User choice of AFL or PFL. ODD EVEN switches with indicators PFL = pre-fader, post insert, stereo paired. AFL = post-fader, post-mute, stereo paired.
  • Page 14 ENTURY ERIES LMx Stereo 21L/22R Module STEREO — Each LMx console includes one STEREO output module that MASTER provides mixes 21L & 22R and the Stereo Input. Module fea- +48V ON THRESH tures are described ‘top down’. MASTER 48V ON switch LAMP DIM Switch for phantom power to Input Channel modules.
  • Page 15 ENTURY ERIES COMPGATE switch with indicator GLOBAL LEVEL/PAN master switch Activates the automatic audio processor when required for with indicator; for 21L & 22R Groups. Changes the send pots Stereo Input ambience mic mixing. from level+level to level+pan configuration for stereo mixing. Refer to OPERATIONS for more about GLOBAL.

  • Page 16: Lmx Master Module

    ENTURY ERIES LMx Master Module MASTER — Each LMx console includes a single module providing master control facilities for the Headphone, Main and Alternate monitor outputs, and the Talkback and Mute Group systems. Module features are described ‘top down’. TB MIC Input connector ADDITIONAL JACKS LOCATED BELOW ARMREST...

  • Page 17: Master Module

    ENTURY ERIES EXT switch and indicator active channels can be added or removed freely and the appro- priate muting is immediate. Connects the EXT Input to all monitor circuits. Use EXT Input Operator Monitor Section for an In-Ear system receiver or other monitor source as required.

  • Page 18: Lmx Meter Bridge

    ENTURY ERIES LMX Meter Bridge 22 electro-mechanical VU meters are provided for the mix audio output levels. They are arranged in a single row. Two central larger meters show the selected SOLO L & R audio levels.All meters are illuminated by long-life LEDs. Meters are calibrated for 0VU = +4dBu and do not normally require adjustment.
  • Page 19 ENTURY ERIES LMx Meter Bridge - 52 input channels -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7 -5 -3 -10 -7...

  • Page 20: Lmx Operation

    ENTURY ERIES Operation STEREO INPUT The Stereo Input feed to group mixes is also under Global Special Features control for the same reason. In mono (not Global level/pan) 1) Global Level/Pan mode the Stereo Feed pots on a group module receive a mono 2) Solo system sum of the L &...
  • Page 21 ENTURY ERIES METER CALIBRATION STEREO INPUT & SIGNAL LEVELS This special section of the Master module provides input and stereo control for mic or line level audio such as music play- SOLO meters show the audio level at that point. The console back, echo return, or ambience audio for ‘in-ear monitoring’...
  • Page 22 ENTURY ERIES Ambience Set Up & Operation Deliberate unbalanced operation or accidental shorting of pin 2 or 3 to ground with phantom power on may cause a tempo- (cont'd) rary fault condition and cause full modulation of the console The Compgate circuit introduces no gain. It operates solely by input channel and any split from it.
  • Page 23 ENTURY ERIES C.) Return of a mix to any number of mixes. Create the master mix, eg drum mix, on groups 21L & 22R either in stereo (select Global Level/Pan) or separate mono mixes: In the center of 21/22 module select ‘L-R TO GROUP ON’. On the mixes that want the drum mix, use the level pots ‘L-R TO GROUP’...
  • Page 25 Appendix A Technical Information...
  • Page 26 VU meters provided for all 22 output buses and the stereo Solo bus. Meter illumination shall be LED. The live monitor 52 MONO INPUTS (64 FRAME) console shall be the Crest Audio Century LMx40 (LMx52). PPENDIX...
  • Page 27 ENTURY ERIES PPENDIX...
  • Page 28 ENTURY ERIES PPENDIX...
  • Page 29 ENTURY ERIES Rear Views & Dimensions .75in. 19mm Size 57.55" 55.80" 54.25" 67.15" 65.40" 63.85" 81.55" 79.80" 78.25" Size 44 1462mm 1417mm 1378mm 52 1706mm 1661mm 1622mm 64 2071mm 2027mm 1988mm Crest Consoles Engineering, May 5, 1997 1.5in./38mm PPENDIX...
  • Page 30 'OFF' (no light) or 'ON+mute' (red) or 'ON' (green). IMPORTANT Output modules are pre-assigned at the Crest factory These modules must always be installed in the correct positions. They are NOT interchangeable without being properly re- assigned. Please contact the Crest Audio Service Department for more information. PPENDIX...
  • Page 31 IMPORTANT Output modules are pre-assigned at the Crest factory These modules must always be installed in the correct positions. They are NOT interchangeable without being properly re- assigned. Please contact the Crest Audio Service Department for more information. PPENDIX...
  • Page 33 Appendix B Glossary...
  • Page 34 ENTURY ERIES Balanced External Talkback Output Symmetrical audio input with three connections: signal +, sig- This allows the TB signals from the local mic only to be routed nal -, and screen ground. to an external destination such as a link to the FOH console. Signal appears on this jack when both the External TB Output Balanced Insert Return switch and talkback master switches are depressed.
  • Page 35 ENTURY ERIES Input/Output Solo Indicators Phantom Master Switch w/LED These LEDs indicate what type of signal (input or output) is Switches +48V phantom power on and off for the entire con- SOLO'd at any given time. sole. Lamp Dim Control Power Indicators Controls the brightness of any 12 volt lighting devices attached Shows the status of the four voltages (+24, +48, +20, -20) used...
  • Page 37 Appendix C Schematics LOCATION DESCRIPTION SCHEMATIC # DWG # REV # INPUT MODULE INPUT CONNECTOR / MIC PRE SUB 76D274 6/7 INPUT MAIN (1 OF 2) 76D2744 INPUT MAIN (2 OF 2) 76D2744 INPUT MAIN SUB BOARD 76D2745 GROUP MODULE GROUP CONNECTOR / SUB (1 OF 2) 76D275 0/1 GROUP CONNECTOR / SUB (2 OF 2)
  • Page 38 Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA : 201.909.8700 : 201.909.8744 http://www.crestaudio.com Printed in USA *D7000005* LMx Owner's Manual Copyright © 1997 Crest Audio Inc. v 2.5 11/3/97 D7000005...

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