NEXO 45°N 12 Line Monitor User Manual 45°N-12 User Manual V1.
Page 2/26 INTRODUCTION 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.
INTRODUCTION Page 3/26 SAFETY INSTRUCTIONS FOR NEXO TD CONTROLLERS NEXO ANALOGUE PSTDCONTROLLERS, NX242 DIGITAL CONTROLLER, NXAMP4x1 AND NXAMP4x4 POWERED CONTROLLERS ARE CLASS 1 APPARATUS AND MUST BE EARTHED. THE GREEN AND YELLOW WIRE OF THE MAINS CORD MUST ALWAYS BE CONNECTED TO AN INSTALLATION SAFETY EARTH OR GROUND. THE EARTH IS ESSENTIAL FOR PERSONAL SAFETY AS WELL AS THE CORRECT OPERATION OF THE SYSTEM, AND IS INTERNALLY CONNECTED TO ALL EXPOSED METAL SURFACES. - Read these instructions.
Page 4/26 INTRODUCTION HIGH SOUND PRESSURE LEVELS Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient period of time. The U.S.
INTRODUCTION Page 5/26 CONTENTS 1 Introduction ............................................................................................................................................... 6 2 45N12 General Set-up Instructions .......................................................................................................... 8 2.1 3 2.1.1 45°N-12 Connector Panel .......................................................................................................... 8 2.1.
Page 6/26 INTRODUCTION 1 INTRODUCTION Thank you for selecting a NEXO 45°N-12 floor monitor. NEXO’s 45°N-12 monitor loudspeaker is the first product based on a radical new concept in stage sound – that of line monitoring. The revolutionary NEXO 45°N-12 wedge monitor brings all the benefits of line-array technology to the stage. It draws on NEXO’s patented Hyperbolic Reflective Wavesource which is used throughout the GEO range of high-performance loudspeakers.
INTRODUCTION Page 7/26 As for all NEXO systems, NEXO 45°N-12 is controlled, powered and monitored by dedicated NEXO TDControllers: NX242-ES4 Digital TDController provides comprehensive control of N12 line monitors in multiple configurations. It allows EthersoundTM digital audio networking, as well as remote control for all units in the network. It has 2 analogue / 4 digital inputs and 4 analogue / 4 digital outputs.
Page 8/26 2 45N12 GENERAL SET-UP INSTRUCTIONS 45N12 GENERAL SET-UP INSTRUCTIONS 2.1 Speaker connection NEXO 45°N-12 are connected with Speakon NL4FC plugs (not supplied). A wiring diagram is printed on the connection panel located 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.
45N12 GENERAL SET-UP INSTRUCTIONS Page 9/26 HF HF + LF - LF + PASSIVE MODE CONFIGURATION HF + HF - LF LF + ACTIVE MODE CONFIGURATION 2.1.3 Cabling NEXO recommends the exclusive use of multi-conductor cables to connect the system: the cable kit is compatible with all the cabinets, and there is no possible confusion between LF and HF sections. Cable choice consists mainly of selecting cables of the correct sectional dimension (size) in relation to the load resistance and the cable length.
Page 10/26 45N12 GENERAL SET-UP INSTRUCTIONS The table below indicates these values, for 3 common sizes. Load Impedance (Ω) 2 Cable section Maximum Length (meters) 3 4 6 8 12 16 1,5 mm² (AWG #14) 3 4.5 6 9 12 18 24 2,5 mm² (AWG #12) 5 7.5 10 15 20 30 40 4 mm² (AWG #10) 8 12 16 24 32 48 64 IMPORTANT Long speaker cables induce capacitive effects – up to hundreds of pF depending on the quality of the cable - with a low-pass effect on high frequencies.
AMPLIFIER SELECTION FOR USE WITH 45 N-12 3 Page 11/26 AMPLIFIER SELECTION FOR USE WITH 45°N-12 NEXO recommends high power amplifiers in all cases. Budget constraints are the only reason to select lower power amplifiers. A lower power amplifier will not reduce the chances of driver damage due to over-excursion, and may actually increase the risk of thermal damage due to sustained clipping.
Page 12/26 AMPLIFIER SELECTION FOR USE WITH 45 N-12 - measure the voltage at the output of the amplifier - calculate the gain using the formula Gain = 20 * LOG10(Vout/Vin). Some examples: Vin / Gain 0.1 V 20dB 1V 26dB 2V 32dB 4V 37dB (1.4V sensitivity / 1350Wrms) 7.1 V 0.5 V 5V 10 V 20 V 35.4 V 1V 10 V 20 V 40 V 70.8 V Remember that constant sensitivity settings will give a different gain value when the amplifier power is different.
AMPLIFIER SELECTION FOR USE WITH 45 N-12 3.2 Page 13/26 45°N-12 and NXAMP TDControllers NEXO Powered TDControllers NXAMP 4X1 & 4X4 are integrated solutions for Control and amplification for all NEXO speaker ranges.
Page 14/26 45°N-12 / NXAMP4x1 - Bridge Stereo – Active mode NXtension-ES Out In In Rx In Tx Out Rx 2+/2- 1+/1- 3 x HF 3 x LF IN A OUT A OUT D Out Tx SP4 SP4 SP4 SP4 SP4 4.
CONNECTION DIAGRAMS 45°N-12 / NXAMP4x1 - Bridge Stereo – Passive mode NXtension-ES Out In In Rx In Tx Out Rx SP4 SP4 SP4 SP4 IN A IN B OUT B BRIDGED MODE 2+/2- HF+LF 2+/2- HF+LF SP4 OUT D BRIDGED MODE Out Tx SP4 4.
45N12 / NXAMP4x4 - 4 Channels – Active Mode NXtension-ES Out In In Rx In Tx Out Rx Out Tx 2+/2- HF 1+/1- LF 2+/2- HF 1+/1- LF SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 SP4 IN A IN B OUT A 4.
CONNECTION DIAGRAMS 45°N-12 / NXAMP4x4 - 4 Channels – Passive Mode NXtension-ES Out In In Rx In Tx Out Rx SP4 SP4 IN A SP4 SP4 IN C IN B SP4 SP4 SP4 IN D SP4 SP4 SP4 SP4 OUT B OUT C OUT A 2+/2- HF+LF SP4 2+/2- HF+LF SP4 SP4 SP4 SP4 SP4 SP4 SP4 OUT D Out Tx SP4 4.
Page 18/26 45°N-12 / NX242-ES4 – Active Mode FROM AMPLIFIERS TO AMPLIFIERS NXtension-ES Out In In Rx In Tx Out Rx Out Tx N12 #2 HF N12 #1 LF N12 #1 HF N12 #2 LF N12 #2 HF + 4 - + 3- + 2 - + 1 - N12 #2 LF N12 #1 HF IN 2 N12 #1 LF NXtension-ES Out In Rx In Tx Out Rx Out Tx STEREO AMPLIFIER 1 STEREO 3 x LF 3 x HF 2+/21+/1- SP4 SP4 SP4 SP4 AMPLIFIER 2 SP4 3 x LF 3 x HF 2+/21+/1- SP4 SP4 SP4 SP4 SP4 4.
CONNECTION DIAGRAMS 45°N-12 / NX242-ES4 – Passive Mode FROM AMPLIFIERS TO AMPLIFIERS NXtension-ES Out In In Rx In Tx Out Rx Out Tx N12 #2 IN 2 N12 #1 N12 #1 N12 #2 + 4 - + 3- + 2 - + 1 - NXtension-ES Out In Rx In Tx Out Rx Out Tx STEREO SP4 SP4 SP4 SP4 SP4 2+/2- HF+LF 2+/2- HF+LF SP4 SP4 SP4 SP4 AMPLIFIER SP4 4.
Page 20/26 5 5.1 APPLICATION GUIDELINES APPLICATION GUIDELINES SAFETY FIRST Before proceeding with installation of 45°N-12, please ensure that the components are present and undamaged. In the event of any shortage, please contact your supplier. Statistically, many more injuries occur due to unstable ground set systems than those associated with flown systems. There are several reasons for this fact, however the message is clear: Always survey the supporting structure upon which 45°N-12 is to be set.
APPLICATION GUIDELINES 5.3 Page 21/26 Handling 45 N-12 on stage Moving cabinets In order to move 45°N-12 quickly 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 22/26 APPLICATION GUIDELINES Unlocking cabinets To unlock cabinets, simply lift one of the side handles: cabinets will unlock with almost no effort. 5.4 Stage monitoring applications Below figures indicate various possible usages for 45°N-12 line monitor.
APPLICATION GUIDELINES 5.5 Page 23/26 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 a mixture of machine oil, surfactant and anti-rust treatment.
Page 24/26 6 45 N-12 TECHNICAL SPECIFICATIONS 45°N-12 TECHNICAL SPECIFICATIONS 6.1 System specifications SYSTEM SPECIFICATIONS 45N12 with TDcontroller Frequency Response [a] 55 Hz - 19 kHz ±3dB Usable Range @-6dB [a] 50 Hz – 20 kHz Sensitivity 1W @ 1m [b] 106 dB SPL Nominal - 104 dB SPL Wideband Nominal Peak SPL @ 1m [b] 1 unit: 137 to 140dB Peak / 2 units: 140 to 143dB Peak HF Dispersion [c] Crossover Frequencies 30° Horizontal - Scalable 30° steps when arrayed. 22.
392 mm 15.43" 45 N-12 TECHNICAL SPECIFICATIONS Page 25/26 30° 576 mm 22,67" 492 mm 19,37" 30° 6.
Page 26/26 7 USER NOTES 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.
