Martin Audio MA2.8Q - SCHEMA Guide de l'utilisateur

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Martin Audio – MA2.8s Amplifier
ENGLISH
1
CONTENTS (ENGLISH) Page No
1 CONTENTS MA2.8S USER GUIDE 1
2APPROVALS 2
3WARNINGS 2
3.1 EXPLANATION OF GRAPHICAL SYMBOLS 2
3.2 WARNING 2
3.3 CAUTION 2
3.4 IMPORTANT SAFETY INSTRUCTIONS 2
3.5 USER RESPONSIBILITY 3
3.5.1 LOUDSPEAKER DAMAGE 3
3.5.2 LOUDSPEAKER OUTPUT HAZARD 3
3.5.3 RADIO INTERFERENCE 3
4 INTRODUCTION 4
4.1 UNPACKING 4
4.2 FRONT PANEL 4
4.3 REAR PANEL 5
5 REAR PANEL FEATURES 6
5.1 GAIN SWITCH 6
5.1.1 GAIN 6
5.1.2 SENSITIVITY 6
5.1.3 OPTIONS 6
5.2 LINK SWITCH 6
5.3 OPERATING MODES 7
5.3.1 STEREO MODE 7
5.3.2 NOTES FOR AMPLIFIER TESTING 7
5.3.3 TANDEM MODE 7
5.3.4 BRIDGE MONO MODE 7
5.3.5 BRIDGE MONO MODE FEATURES 7
5.4 IMPEDANCE MATCHING (MLS SWITCH) 8
5.4.1 THE MLS TECHNOLOGY 9
5.4.2 THE PROBLEM 9
5.4.3 THE SOLUTION 9
6 INSTALLATION 9
6.1 MOUNTING 9
6.2 COOLING 9
6.3 OPERATING VOLTAGE 10
6.4 DENMARK 10
6.5 SWITZERLAND 10
6.6 GROUNDING 10
6.7 POWER CONSUMPTION 10
6.7.1 CALCULATION 11
7 CONNECTIONS 12
7.1 INPUT CONNECTIONS 12
7.1.1 BALANCED INPUTS 12
7.1.2 UNBALANCED INPUTS 12
7.2 CONNECTING SPEAKERS 13
8 OPERATION 14
8.1 OPERATING PRECAUTIONS 14
8.2 POWERING UP – SOFT START 14
8.3 INPUT ATTENUATORS 14
8.4 INDICATORS 14
9 PROTECTION FEATURES 14
9.1 OUTPUT LIMITER 15
9.2 THERMAL PROTECTION 15
9.3 VHF PROTECTION 15
9.4 SHORT CIRCUIT PROTECTION 15
9.5 AC MAINS VOLTAGE PROTECTION 15
9.6 DC. PROTECTION 15
10 MAINTENANCE 16
10.1 TROUBLESHOOTING 16
11 WARRANTY 17
12 SPECIFICATIONS MA2.8S 18
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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Page 1 - CONTENTS

Martin Audio – MA2.8s AmplifierENGLISH1CONTENTS (ENGLISH) Page No1 CONTENTS MA2.8S USER GUIDE 12APPROVALS 23WARNINGS 23.1 EXPLANATION OF GRAPHICAL S

Page 2 - 3 W A R NI NG S

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Page 3

Martin Audio – MA2.8s AmplifierENGLISH11m ains d istrib utio n syste m b ased on th e cu rre nt d raw a t full p ow er w o uld result

Page 4 - 17 34278

Martin Audio – MA2.8s AmplifierENGLISH127 C O N NE C T I O N S 7 .1 I n p u t c o n n e c t i o n s 7.1.1 B alan ce d inp u tsX LR Inp u t c

Page 5

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Page 6

Martin Audio – MA2.8s AmplifierENGLISH148 O PE R A TI O N8 .1 O p e r a t i n g pr e c a u t io n s • M ake su re th a t th e p ow er sw itch

Page 7

Martin Audio – MA2.8s AmplifierENGLISH159 .1 Ou t p u t Li m i t e r A n ou tp u t lim iter is includ ed to a vo id am plifier clip pin g.

Page 8 - T ab le 1

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Page 9 - 6 I NS TA LL A TI O N

Martin Audio – MA2.8s AmplifierENGLISH1711 W A R R A NT Y G en eralT he M A 2 .8 s P ow er a m plifier is w arra n te d to be free fro

Page 10

Martin Audio – MA2.8s AmplifierENGLISH1812 SPE C IF I C A TI O NS MA 2 . 8 S MA XIM UM O U TP UT P O WE R ML S in 0d B p os iti

Page 11

Martin Audio – MA2.8s AmplifierENGLISH19W EIGH T 1 0K g (2 2 Ib s)S HIPP IN G D IM E NS IO NS (W) 5 60 m m x (H) 1 80 m m x (D) 5 00 m m(W)

Page 12 - 7 C O N NE C T I O N S

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MA2.8s AmplifierCentury Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England. Telephone: +44 (0)1494 535312

Page 14 - 8 O PE R A TI O N

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Page 15

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Page 16 - 10 MA IN TE N A N C E

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Page 17 - Int er na t iona l

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Martin Audio – MA2.8s AmplifierENGLISH65 R E A R PA N E L FE A T UR E S 5 .1 G a i n s w i t c h T he g ain switch loca te d o n th e

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Martin Audio – MA2.8s AmplifierENGLISH75 .3 O p e r a t i n g mo d e s 5.3.1 S te re o m od eIn th is co nfigu ra tio n, b o th cha n ne ls o

Page 20 - MA2.8s Amplifier

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Page 21

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