Crest Audio X 18R, X 20R owner manual GROUPAssignment Section, Mono assignments for Groups 1, 2, 3

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Master Section 3

Front Panel Features

GROUPAssignment Section

The X 18R and X 20R offer a flexible group assignment arrangement. Each of the four

Groups can be directly assigned to Left, Right and Mono buses, in any combination.

M - Mono assignments for Groups 1, 2, 3 & 4

Each of the four groups has a Mono assignment button for routing its post-fader signal to the Mono mix bus.

L - Left Assignments For Groups 1, 2, 3 & 4

Each of the four groups has a Left assignment button for routing its post-fader signal to the Left mix bus.

R - Right Assignments For Groups 1, 2, 3 & 4

Each of the four groups has a Right assignment button for routing its post-fader signal to the Right mix bus.

Group Master Faders 1, 2, 3 & 4

Each Group has a master fader for adjusting its overall level.These signals show up at the

Group OUT jacks on the rear panel and can be assigned to the Left, Right and Mono buses.

They also feed the Solo system when the Group AFL buttons are down.

GroupPK / SIG LED Indicators

These two-color LEDs are used to monitor each of the group’s signal levels. Signal present (green) is monitored pre-fader. Peak (red) is moni-

tored at the preamp and both before & after the fader.

AFL Buttons For Groups 1, 2, 3 & 4

Each of the four groups has an AFL button for monitoring through the SOLO system.The signal assigned to the Solo bus is picked up after the fader.The groups show up in stereo in the Solo system - odd to left, even to right. The Peak (red) LEDs are illuminated to show AFL status.

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Contents 18R / X 20R Page Important Precautions Page Important Safety Instructions Wichtige Sicherheitshinweise Instructions Importantes De Securite Instrucciones Importantes Para Su Seguridad Table Of Contents 18R/20R Block Diagram How To Use This Manual Mono Input Channel Hz Lo-Cut Filter Lo Cut SwitchLine Input Mic Pad GainMono Input Channel Low Frequency-LF High Frequency-HFHigh Mid-HM Low Mid-LMModule Block Diagram Controls AUX 3-4 PRE Aux 1 2 PREAux Sends 1 Aux Sends 3, 4, 5Mono Input Channel PFL MuteRear Panel Chan Insert Jack 48V Phantom PowerLine Input Jack XLR Mic Input JackStereo Input Channel SUM Inputs Str Line In Mic PadModule Low Frequency-LM Front Panel Features Stereo EQStereo Input Channel AUX 5 and AUX 6 are post-fader AUX 5 and AUX 6 are pre-fader Stereo Input Channel Input Fader BAL ControlRear Panel Block Diagram +48V On Master Section Solo OFF From MonitorTape Master Section PWR LED Solo LEDMaster Section Aux 3, 4, 5, & 6 AFL AUX OUT 1-2 Level ControlAux 1-2 AFL AUX OUT 3, 4, 5 & 6 Level ControlMaster section Left Assignments For Groups 1, 2, 3 GroupPK / SIG LED IndicatorsGROUPAssignment Section Mono assignments for Groups 1, 2, 3Block Diagram Controls Monitor Output Section Monitor Level ControlSUM Mono Module Block Diagram Controls Mono Source SelectMaster Section MONO, Left & Right Master faders 100mm Mono PK/SIG LEDLeft/Right PK/SIG LED Mono AFLMaster Section Left, Right And Mono Main Outputs Left, Right and Mono Bus InputsGroup 1, 2, 3 & 4 Bus Inputs Insert For Left, Right and MonoRear Panel Block Diagram Group Inserts 1Thru Aux Insert 1ThruAux Outtrs Jacks 1Thru Aux OUT XLRs 1ThruMaster Section Solo Link Tape LineAlt Out Monitor OutSpecifications 18R/20R Internal Options Connector Pinout DetailUser Notes User Notes Crest P/N