QSC Audio DCA 1644 User Manuals

Table of Contents

• Explanation of graphical symbols

  2
• INSTALLATION

  17
• Safe operating levels

  25
• TABLE OF CONTENTS

  3
• Declaration of Conformity

  4
• Inputs

  18
• Speakon™ outputs

  20
• Problem: no sound

  29
• Front panel

  7
• Barrier strip outputs

  21
• Problem: distorted sound

  31
• Rear panel

  8
• Operating voltage (AC mains)

  22
• Problem: no channel separation

  31
• DataPort

  22
• Problem: hum

  32
• Clip limiter

  9
• Problem: hiss

  32
• Input filter

  10
• Problem: squeals and feedback

  32
• Parallel input mode

  11
• LED indicators

  23
• Bridge mono mode

  13
• Gain controls

  23
• Security panel

  24
• WARRANTY INFORMATION

  39
• Mono modes?

  15
• Fan cooling

  25
• ADDRESS & TELEPHONE INFORMATION

  40