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
 Gain
Lo Cut Switch
Line Input Mic Pad
Hz Lo-Cut Filter
 Mono Input Channel
 Low Mid-LM
High Frequency-HF
High Mid-HM
Low Frequency-LF
 Module Block Diagram Controls
 Aux Sends 3, 4, 5
Aux 1 2 PRE
Aux Sends 1
AUX 3-4 PRE
 Mono Input Channel
 Mute
PFL
 Rear Panel
 XLR Mic Input Jack
48V Phantom Power
Line Input Jack
Chan Insert Jack
 Stereo Input Channel
 Str Line In Mic Pad
SUM Inputs
 Module
 Front Panel Features Stereo EQ
Low Frequency-LM
 Stereo Input Channel
 AUX 5 and AUX 6 are post-fader AUX 5 and AUX 6 are pre-fader
 Stereo Input Channel
 BAL Control
Input Fader
 Rear Panel Block Diagram
 +48V On
 Master Section
 Tape
Solo OFF
From Monitor
 Master Section
 Solo LED
PWR LED
 Master Section
 AUX OUT 3, 4, 5 & 6 Level Control
AUX OUT 1-2 Level Control
Aux 1-2 AFL
Aux 3, 4, 5, & 6 AFL
 Master section
 Mono assignments for Groups 1, 2, 3
GroupPK / SIG LED Indicators
GROUPAssignment Section
Left Assignments For Groups 1, 2, 3
 Block Diagram Controls
 SUM Mono
Monitor Output Section
Monitor Level Control
 Module Block Diagram Controls
 Source Select
Mono
 Master Section
 Mono AFL
Mono PK/SIG LED
Left/Right PK/SIG LED
MONO, Left & Right Master faders 100mm
 Master Section
 Insert For Left, Right and Mono
Left, Right and Mono Bus Inputs
Group 1, 2, 3 & 4 Bus Inputs
Left, Right And Mono Main Outputs
 Rear Panel Block Diagram
 Aux OUT XLRs 1Thru
Aux Insert 1Thru
Aux Outtrs Jacks 1Thru
Group Inserts 1Thru
 Master Section
 Monitor Out
Tape Line
Alt Out
Solo Link
 Specifications
 Connector Pinout Detail
18R/20R Internal Options
 User Notes
 User Notes
 Crest P/N