User manual CREST AUDIO FA2401

[. . . ] If properly cared for, your new console will provide you with trouble-free, sonically accurate mixing clear into the next Century and beyond. Please keep the following contact information on hand: Crest Audio Customer Service Dept. 100 Eisenhower Drive Paramus NJ 07652 USA tel 201. 909. 8700 fax 201. 909. 8744 http://www. crestaudio. com Crest Audio Inc. 100 Eisenhower Dr. , Paramus NJ 07652 USA TEL: 201. 909. 8700 FAX: 201. 909. 8744 http://www. crestaudio. com Printed in USA TABLE LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx LMx OF CONTENTS 2 3 5 6 7 7 8 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. Power Connections A brief description of Crest console power connections. Console Cooling A brief description of the dual-fan cooling setup. Input Module Profiles the LMx input module. [. . . ] In this mode Main Monitor On-Off switch cuts both the Main & Alt outputs. Monitor Sources [audio default when Solo inactive] SOLO L & R VU meters Display the level of the current Monitor source: Ext In, Fader Mix, SOLO. 0VU = +4dBu. FOOTPEDAL 1/4" Socket (On chassis below power connector) Potentiometer in pedal is wired to a 'stereo` jack plug. Use only the pedal provided. SUM MONO switch and indicator Sums L&R audio (incl. SOLO) together for Main, Alt & HP outputs. PAGE 15 FA2401 CENTURY SERIES FA2401 Meter Bridge 22 electro-mechanical VU meters are provided for the mix audio output levels. 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. There is provision for internal re-calibration if required. Normal Operation In normal use, indicated audio levels of between -10 and 0VU give the best performance. The console has a considerable overload margin and occasional peaks to +3 or more will usually be undistorted. However, as with all solid state audio, the change from clean to distorted sound occurs abruptly. Audio levels persistently below -10VU waste the clean highlevel capability of the console, and contribute unnecessary noise to the system. Illumination Four XLR type sockets are provided at the rear of the meterbridge and accept gooseneck type plug in lamps. Mono sources are reproduced in both sides, Stereo sources are automatically assigned in stereo. The SOLO TYPE switch (Master module) controls the selection of AFL or PFL source. Solo Response Starting with a clear console, when the first SOLO is selected three things occur at the same time: 1. Audio from Solo source(s) is added to the Solo audio mix buses. The Solo control bus is activated and switches over the stereo monitor output section from the user selected default source, Silence, External Input or Fader Mix, to Solo audio. The system recognizes the location of the active Solo(s) and lights the appropriate INPUT or OUTPUT indicators. The SOLO meters are also switched and show the Solo audio level instead of the default source level. Operation Changing from mono to stereo configuration is controlled by a single switch on each group module `GLOBAL LEVEL/PAN'. In normal operation, for 22 mono mixes, all the global switches are out. Whenever a stereo mix with level and pan is wanted simply select GLOBAL on the pair of mixes you want to be in stereo. First, on all the sends to those groups, the internal pot configurations are switched to create level+pan pairs. Second, the output module group mix sections are internally stereo-paired so that use of both group SOLOs at the same time gives a stereo mix to the operator monitor outputs. The send pot configurations are engineered to be transparent in use. [. . . ] There are two headphone jacks: one on master module, and one underneath the armrest on the right front corner of the console. Suitable for all headphone impedances. Direct Out This jack carries the direct output signal (post fader & post mute) from each input channel. This signal can be used for connection to recording devices or routing of the post fader signal. Headphone Level Control Controls the output level of both headphone jacks. High Pass Filter Switch This switch inserts the High Pass Filter into the output signal. The output HPF is adjustable via the HPF frequency control. EQ IN Switch Inserts the EQ section into the input/output channel signal. [. . . ]