User manual

TABLE OF CONTENT
(9) CHANNEL INDICATORS .......................................................................................................................................................17
(10) AIR INTAKES ....................................................................................................................................................................17
(11) SCREW HOLES FOR HANDLES............................................................................................................................................17
BACK PANELS DESCRIPTION ..................................................................................................................................................18
(1) MAINS CONNECTORS..........................................................................................................................................................18
(2) BALANCED AUDIO INPUTS WITH LINK.................................................................................................................................18
(3) EXPANSION SLOT ...............................................................................................................................................................19
(4) POWER OUTPUTS ................................................................................................................................................................19
(5) RS-232 PORT .....................................................................................................................................................................19
(6) GPIO PORT ........................................................................................................................................................................20
(7) REAR END MOUNTING HOLES .............................................................................................................................................20
BASIC FUNCTIONS ..................................................................................................................................................................20
RESET......................................................................................................................................................................................20
SELECTING CABINET FAMILY ...................................................................................................................................................20
SELECT YOUR CABINET SET-UP................................................................................................................................................21
USING THE AMPLIFIER WITHOUT THE TDCONTROLLER FUNCTIONALITY..................................................................................21
BACK TO DEFAULT ..................................................................................................................................................................21
AUTO SAVE..............................................................................................................................................................................21
ENTER THE DOWNLOAD MODE.................................................................................................................................................21
WHAT’S INSIDE THE CARTON BOX............................................................................................................................22
SETTING-UP ADVICE.......................................................................................................................................................23
EARTH CONNECTION..............................................................................................................................................................23
MAINS SETTING......................................................................................................................................................................23
MOUNTING THE NXAMP IN A RACK (GROUNDING, SHIELDING & SAFETY ISSUES) ...........................................................24
USING THE NXAMP WITHOUT A RACK ................................................................................................................................26
FUSES......................................................................................................................................................................................26
ELECTROMAGNETIC ENVIRONMENTS ...................................................................................................................................26
ANALOGUE INPUT SIGNAL CABLES ........................................................................................................................................26
NXAMP POWER OUTPUTS WIRING .......................................................................................................................................28
GENERAL DESCRIPTION................................................................................................................................................29
GLOBAL ARCHITECTURE .......................................................................................................................................................29
NXAMP4X1 GLOBAL ARCHITECTURE ....................................................................................................................................29
NXAMP4X4 GLOBAL ARCHITECTURE ....................................................................................................................................29
POWER SUPPLY BLOCK ...........................................................................................................................................................30
ANALOG INPUT BLOCK ............................................................................................................................................................31
CONTROL BLOCK .....................................................................................................................................................................31
POWER AMPLIFIER BLOCKS......................................................................................................................................................32
POWER OUTPUTS BLOCK ..........................................................................................................................................................32
USER INTERFACE BLOCK..........................................................................................................................................................33
COMMUNICATION BLOCK ........................................................................................................................................................33
EXPANSION SLOT BLOCK .........................................................................................................................................................34
BLOCK DIAGRAM DESCRIPTION ................................................................................................................................36
PATCHING AND ROUTING (1) .................................................................................................................................................37
DELAY & POLARITY INVERSION (2) ......................................................................................................................................37
FACTORY SET-UP DELAY .........................................................................................................................................................37
USER SET-UP DELAY ................................................................................................................................................................37
EQUALISATION & FILTERING................................................................................................................................................37
SUBSONIC AND VHF FILTERING (3).........................................................................................................................................37
EQUALISING WIDEBAND ACOUSTICAL RESPONSE (3) ...............................................................................................................38
USER SET-UP, ARRAY EQ (4)....................................................................................................................................................38
EQUALISING SINGLE COMPONENT RESPONSE AND NXSTREAM PROCESSING (5) ...................................................................38
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