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I

NTRODUCTION

 

 

 

 

 

 

 

 

PLEASE READ CAREFULLY BEFORE PROCEEDING 

 

BASIC PRECAUTIONS 

 

Do not open the speaker system or attempt to disassemble the internal parts or modify them in any 

way. The speaker system contains no user-serviceable parts. If it should appear to be malfunctioning 

or damaged, discontinue use immediately and have it inspected by qualified NEXO service personnel. 

Water exposure: Do not expose the speaker system to direct rain, do not use it near water or in wet 

conditions. Do not place containers with liquid on speaker system as they might spill into openings. If 

any liquid such as water seeps into the speaker system, have it inspected by qualified NEXO 

personnel. 

 

SYSTEM DEPLOYMENT SAFETY RULES 

 

Read User Manual before deployment

. Before use of enclosed speaker system, 

please ensure that anyone involved in system deployment understands the rigging – 
stacking – pole mounting safety rules as described in the speaker system User Manual. 
Failure to do this exposes people to potential injury or death. 

 

Always consult qualified NEXO personnel if the device installation requires construction work and make 
sure to observe the following precautions: 

Mounting precautions 

choose mounting hardware and an installation location that can support the weight of the speaker 
system; 

do not use speaker system handles for suspended installation; 

do not expose speaker system to excessive dust or vibration, or extreme cold or heat to prevent 
possibility of component damage; 

do not place the speaker system in an unstable position from which it might fall accidentally; 

if speaker systems uses a stand, ensure that stand specifications are adapted, and that stand 
height does not exceed 1.40m/55”; never move the stand while the speaker is in position. 

Connection and powering precautions 

remove all connected cables before moving the speaker system; 

turn off AC power of all power amplifier units before connecting the speaker system; 

when turning on the AC power to the audio system, always turn on the power amplifier last; when 
turning the AC power off, always turn off the power amplifier first; 

when used in cold conditions, a gradual power ramp up should applied to the system on an 5 mn 
period to allow the loudspeaker components to stabilize during the very first minutes of usage. 

Inspect the speaker system periodically. 

Summary of Contents for 45N-12

Page 1: ...NEXO 45 N 12 LineMonitor User Manual 45 N 12 User Manual V1 01 Date 15 12 2010 ...

Page 2: ... device installation requires construction work and make sure to observe the following precautions Mounting precautions choose mounting hardware and an installation location that can support the weight of the speaker system do not use speaker system handles for suspended installation do not expose speaker system to excessive dust or vibration or extreme cold or heat to prevent possibility of compo...

Page 3: ...f the obsolete outlet US market Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is requi...

Page 4: ... limits as set forth above To ensure against potentially dangerous exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation DISPOSAL OF OLD ELECTRICAL ELECTRONIC EQUIPMENT This symbol on the product or on its pack...

Page 5: ...AMP recommended configurations 13 4 Connection diagrams 14 4 1 45 N 12 NXAMP4x1 Bridge Stereo Active mode 14 4 2 45 N 12 NXAMP4x1 Bridge Stereo Passive mode 15 4 3 45N12 NXAMP4x4 4 Channels Active Mode 16 4 4 45 N 12 NXAMP4x4 4 Channels Passive Mode 17 4 5 45 N 12 NX242 ES4 Active Mode 18 4 6 45 N 12 NX242 ES4 Passive Mode 19 5 Application guidelines 20 5 1 SAFETY FIRST 20 5 2 45 N 12 Coverage 20 ...

Page 6: ...y wavesourcing creating virtual acoustic sources behind the enclosure itself and below the stage using reflection rather than coercion to determine the shape of the wavefront Unlike a conventional high frequency waveguide in which the exit is rectangular the NEXO monitor s waveguide enables cabinets to be linked together to form arrays without interference between wavefronts Practical benefits for...

Page 7: ...ES4 to access N12 setups NXAMP4x1 and NXAMP 4x4 are Powered Digital Controllers providing full control and amplification for 45N12 in multiple configurations Both devices feature 4 analogue inputs and 4 speaker outputs When equipped with optional card 4 digital inputs in EthersoundTM digital audio network format as well as remote control for all units in the network become available For a complete...

Page 8: ...cated on the back of each cabinet The 4 pins of the 2 Speakon sockets identified in out are connected in parallel within the enclosure Either connector can be used to connect amplifier or to link to an additional 45N12 cabinet 2 1 1 45 N 12 Connector Panel Connectors are wired as follows Speakon Connector Passive Mode Active Mode 1 Ö Not Connected 45N12 LF 1 Ö Not Connected 45N12 LF 2 Ö 45N12 45N1...

Page 9: ...crews that hold the rear bottom metal panel remove the rear bottom metal panel to access passive network WAGO connectors In Passive Mode WAGO connector should be inserted in Passive In and speakers WAGO connectors should be inserted in connector Passive Out In Active Mode WAGO Connector should be directly connected to speakers via speakers WAGO connectors passive filter is then bypassed PASSIVE MO...

Page 10: ... delivered to the loudspeaker and can also induce response damping factor variations For a serial resistance less or equal to 4 of the load impedance damping factor 25 the maximum cable length is given by Lmax Z x S S in mm2 Z in Ohm Lmax in meters The table below indicates these values for 3 common sizes Load Impedance Ω 2 3 4 6 8 12 16 Cable section Maximum Length meters 1 5 mm AWG 14 3 4 5 6 9 ...

Page 11: ...speakers per channel instead of one 4 instead of 2 and running the amps up to the onset of clipping If the signal does not noticeably deteriorate the amplifier is well adapted overheating after approximately ten minutes is normal but thermal protection must not operate too quickly after starting this test 3 1 2 Amplifier settings Gain value Gain is the key to correct alignment of the system It is ...

Page 12: ...ative output connections vary depending on amplifier manufacturers NEXO does not recommend Bridge Mono Mode unless amplifier power is clearly not sufficient IMPORTANT When in Bridge Mono mode check your amplifier user manual for proper connection of outputs 1 and 2 in relation to input phase Parallel mono the output terminals of the two channels are configured in parallel using an internal relay T...

Page 13: ...R3 connectors 4 digital inputs outputs on RJ45 connectors with optional card 4 speaker level outputs on NL4FC connectors Figure below shows connectors implementation on the rear panel 3 2 2 45 N 12 and NXAMP recommended configurations Below table lists basic requirements for proper use of NXAMP TD Controllers in conjunction with 45 N 12 Passive Mode Active Mode 1 or 2 x 45 N 12 1 channel of NXAMP4...

Page 14: ...14 25 CONNECTION DIAGRAMS 4 CONNECTION DIAGRAMS 4 1 45 N 12 NXAMP4x1 Bridge Stereo Active mode IN A OUT A OUT D 3 x HF 3 x LF SP4 SP4 SP4 SP4 SP4 2 2 1 1 NXtension ES In Rx In Tx Out Rx Out Tx Out In SP4 SP4 ...

Page 15: ...ION DIAGRAMS Page 15 25 IN A IN B OUT B BRIDGED MODE OUT D BRIDGED MODE SP4 SP4 SP4 SP4 SP4 SP4 2 2 HF LF 2 2 HF LF NXtension ES In Rx In Tx Out Rx Out Tx Out In 4 2 45 N 12 NXAMP4x1 Bridge Stereo Passive mode ...

Page 16: ...e 16 25 CONNECTION DIAGRAMS OUT A OUT C IN B IN A SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 2 2 HF 1 1 LF 2 2 HF 1 1 LF NXtension ES In Rx In Tx Out Rx Out Tx Out In 4 3 45N12 NXAMP4x4 4 Channels Active Mode ...

Page 17: ...UT A IN B IN A OUT D IN D IN C SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 OUT B OUT C 2 2 HF LF 2 2 HF LF NXtension ES In Rx In Tx Out Rx Out Tx Out In 4 4 45 N 12 NXAMP4x4 4 Channels Passive Mode ...

Page 18: ...LIFIERS N12 2 LF N12 2 HF 4 3 STEREO 2 1 N12 2 HF N12 1 LF N12 1 HF IN 2 N12 1 LF N12 1 HF 3 x HF 3 x LF SP4 SP4 SP4 SP4 SP4 2 2 1 1 3 x HF 3 x LF SP4 SP4 SP4 SP4 SP4 2 2 1 1 NXtension ES In Rx In Tx Out Rx Out Tx Out In NXtension ES In Rx In Tx Out Rx Out Tx Out In 4 5 45 N 12 NX242 ES4 Active Mode ...

Page 19: ...LIFIERS STEREO FROM AMPLIFIERS N12 2 4 3 2 1 N12 2 N12 1 IN 2 N12 1 SP4 SP4 SP4 SP4 SP4 2 2 HF LF SP4 SP4 SP4 SP4 SP4 2 2 HF LF NXtension ES In Rx In Tx Out Rx Out Tx Out In NXtension ES In Rx In Tx Out Rx Out Tx Out In 4 6 45 N 12 NX242 ES4 Passive Mode ...

Page 20: ...liding forwards due to vibration This may require the fitting of timber battens to the stage floor For outdoor systems ensure that that the system is protected from wind forces which might cause the monitor system to become unstable Wind forces can be huge especially upon large systems and should never be underestimated Observe meteorological forecasts calculate the worst case effect upon the syst...

Page 21: ... on stage lift the cabinet from the front handle slide it on the rounded rear skids drop it at its new position Locking cabinets An integrated magnetic locking system allows connecting multiple monitors together without requirement for additional parts Locking is achieved by simply adjusting cabinets side by side ...

Page 22: ... 5 Testing and Maintenance of the system Cleaning The exterior of the cabinet can be cleaned with a damp cloth soaked in mild soapy water On no account use solvent based cleaners which may damage the finish of the cabinet After cleaning the 45 N 12 front grid must be treated with a suitable lubricant to prevent rusting NEXO recommends the use of Scottoil FS365 which is a water based lubricant with...

Page 23: ... Cables Active 1 1 LF 2 2 HF Passive 1 1 Not Connected 2 2 LF HF PRODUCT FEATURES Components LF VLF HF LF 1 x 12 30 cm high excursion Neodymium 8Ω driver HF 1 x 3 voice coil 1 4 throat Neodymium 16Ω compression driver on a 22 5 hyperboloid reflective wavesource Height x Width x Depth 392 x 492 x 576 mm 15 43 x 19 37 x 22 67 Weight Net 24 kg 53 lbs Connectors 2 x NL4MP SPEAKON 4 pole Construction M...

Page 24: ...CATIONS 576 mm 22 67 30 492 mm 19 37 30 392 mm 15 43 6 3 Component List MODEL DRAWING DESCRIPTION 45N12 45N12 speaker NX 242 ES4 Digital TDcontroller NXAMP4x1 Digital Powered Controller 4x1300W NXAMP4x4 Digital Powered Controller 4x4000W ...

Page 25: ...USER NOTES Page 25 25 7 USER NOTES France Nexo S A Parc d activité de la dame jeanne F 60128 PLAILLY Tel 33 3 44 99 00 70 Fax 33 3 44 99 00 30 E mail info nexo fr www nexo sa com ...

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