Martin Audio MA4.2s User Manual

CONTENTS (ENGLISH)
1 CONTENTS MA 4.2s USER GUIDE
2 APPROVALS
3 WARNINGS
3.1 EXPLANATION OF GRAPHICAL SYMBOLS
3.2 WARNING
3.3 CAUTION
3.4 IMPORTANT SAFETY INSTRUCTIONS
3.5 USER RESPONSIBILITY
3.5.1
3.5.2
3.5.3
4 INTRODUCTION
4.1 UNPACKING
4.2 FRONT PANEL
4.3 REAR PANEL
5 REAR PANEL FEATURES
5.1 GAIN SWITCH
5.1.1
5.1.2
5.1.3
5.2 LINK SWITCH
5.3 OPERATING MODES
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.4 IMPEDANCE MATCHING (MLS SWITCH)
5.4.1
5.4.2
5.4.3
6 INSTALLATION
6.1 MOUNTING
6.2 COOLING
6.3 OPERATING VOLTAGE
6.4 DENMARK
6.5 SWITZERLAND
6.6 GROUNDING
6.7 POWER CONSUMPTION
6.7.1
7 CONNECTIONS
7.1 INPUT CONNECTIONS
7.1.1
7.1.2
7.2 CONNECTING SPEAKERS
8 OPERATION
8.1 OPERATION PRECAUTIONS
8.2 POWERING UP - SOFT START
8.3 INPUT ATTENUATORS
8.4 INDICATORS
9 PROTECTION FEATURES
9.1 OUTPUT LIMITER
9.2 THERMAL PROTECTION
9.3 VHF PROTECTION
9.4 SHORT CIRCUIT PROTECTION
9.5 AUTOMATIC FUSE SAVER, AFS - LIMITER
9.6 AC MAINS VOLTAGE PROTECTION
9.7 THE "AC" LED
9.8 D.C. PROTECTION
10 MAINTENANCE
10.1 TROUBLESHOOTING
11 WARRANTY
12 SPECIFICATIONS MA4.2s
All material © 2007. Martin Audio Ltd. Subject to change without notice.
All manuals and user guides at all-guides.com
LOUDSPEAKER DAMAGE
LOUDSPEAKER OUTPUT HAZARD
RADIO INTERFERENCE
GAIN
SENSITIVITY
OPTIONS
STEREO MODE
NOTES FOR AMPLIFIER TESTING
TANDEM MODE
BRIDGE MONO MODE
BRIDGE MONO MODE FEATURES
THE MLS TECHNOLOGY
THE PROBLEM
THE SOLUTION
CALCULATION
BALANCED INPUTS
UNBALANCED INPUTS
Martin Audio - MA4.2s (ETL) Amplifier
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