Related Manuals for Nexo NXAMPMK2 Series
Summary of Contents for Nexo NXAMPMK2 Series
- Page 1 DP4946-01-DI NXAMPMK2 POWERED TD CONTROLLER NXAMP4x1 NXAMP4x2 NXAMP4x4 USER MANUAL (LOAD5_05)
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Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS ..........................2 SAFETY PRECAUTIONS ..........................5 SAFETY INSTRUCTIONS ............................5 PRECAUTIONS................................ 6 POWER SUPPLY/POWER CORD ............................6 WATER WARNING ................................6 IF YOU NOTICE ANY ABNORMALITY ..........................6 LOCATION ....................................6 CONNECTIONS ..................................7 MAINTENANCE ..................................7 HANDLING CAUTION ................................7 COMPLIANCE INFORMATION ........................ - Page 3 TABLE OF CONTENTS SCENE ................................... 27 TO SAVE A SCENE: ................................27 TO RECALL A SCENE ................................ 28 SYSTEM HEADROOM ............................29 LOG ..................................29 GLOBAL ....................................30 PER CHANNEL ................................... 30 OPTIONS ..............................31 ALERTS ................................. 31 LOAD MONITORING ............................. 31 MONITORING MODE .................................
- Page 4 LINKING SEVERAL DPU TOGETHER ..........................52 REMOTE CONTROL – NEXO NEMO ......................53 IP BASED REMOTE CONTROL PROTOCOL ....................... 53 NEMO (NEXO REMOTE): NXAMPMK2 CONTROL SOFTWARE ................. 54 OTHER REMOTE-CONTROL OPTIONS ....................... 55 FIRMWARE UPDATE – NEXO NEFU ......................55 ACCESSORIES ............................
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Page 5: Safety Precautions
Please check the NEXO Web site nexo-sa.com to get the most up-to-date version of this manual. Ensure you are aware of the safety rules applying to rigging, stacking or installing on tripod or speaker stand. -
Page 6: Precautions
If the power cord or plug becomes frayed or damaged, or if there is a sudden loss of sound during use of the device, or any unusual smells or smoke should appear to be caused by it, immediately turn off the power switch, disconnect the electric plug from the outlet, and have the device inspected by qualified NEXO service personnel. -
Page 7: Connections
Remove the power plug from the AC outlet when cleaning the device. The performance of components with moving contacts, such as switches, volume controls, and connectors, deteriorates over time. Consult qualified NEXO service personnel about replacing deflective components. HANDLING CAUTION When turning on the AC power in your audio system, always turn on the device LAST, to avoid speaker damage. -
Page 8: Compliance Information
If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you cannot locate the appropriate retailer, please contact the After Sales department of NEXO-SA, Parc d’Activité du Pré de la Dame Jeanne, B.P.5, 60128 PLAILLY, FRANCE. PAGE 8 / 70... -
Page 9: Doc
See www.dtsc.ca.goc/hazardouswaste/perchlorate. (Perchlorate) This applies only to the products distributed in the United States of America. Declaration of Conformity NEXO SA ZA DU PRE DE LA DAME JEANNE 60128 PLAILLY – France Declare under our sole responsibility that the product... -
Page 10: Information
A TD Controller is a highly sophisticated audio processing unit, design to enhance the sonic performances as well as to protect the NEXO speakers. This processor is coupled with four channels of power amplifier. RACK INSTALLATION The NXAMPmk2 should be mounted into a suitable rack unit, ensuring both front and rear mounting holes are used in order to protect the device from mechanical damage. -
Page 11: Speaker Cable Choice
High voltage can be present on the power amplifier output terminals. Use at least NEC (National Electrical Code) UL13 CL3 (under 300V) wiring cable to connect the NXAMPmk2 to the NEXO speakers. To minimize power and damping factor losses in speaker cable, use suitable gauges from the table below. -
Page 12: Back Panel Description
Long press this encoder till the system boots up. The first screen will show the NEXO logo and the revision of the firmware starting with “LOAD”. The rotary encoder is also used to navigate in the menu or to validate a value when you press it. -
Page 13: B: Expansion Slot
When used in bridge mode, never touch or short-circuit the unused pins on the output NL4 as some high voltage can be present. To help you connect seamlessly the NXAMPmk2 to your NEXO speakers, an automatic Digital Patch Unit (reference DPU) is available. -
Page 14: E: Air Exhaust
E: AIR EXHAUST F: RS-232 PORT This serial port is used to connect a NEXO DPU (Digital Patching Unit) device. Note that It is not possible to upgrade the NXAMPmk2 firmware though this serial port. The RxD pin is the “Receive data” pin from the NXAMP point of view. Thus, this is an input. The TxD pin is the “Transmit data”... -
Page 15: Audio Input And Output Connections
Maximum 200 mA drawn from the totality of the GP Outputs, with a maximum of 32 mA for each output. AUDIO INPUT AND OUTPUT CONNECTIONS Place the NXAMPmk2 in the audio chain just before the NEXO speakers, typically at the output of the mixer or matrix. - Page 16 START-UP From one of the Settings Menus, The Header Menu pictured below is entered by pressing the encoder. A: INTERNAL MENU B: FIRMWARE VERSION C: SETTINGS MENU D: STAND-BY E: LOCK THE DEVICE F: SHOW INACTIVE SCREEN PAGE 16 / 70 NXAMPMK2 USER MANUAL...
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Page 17: Operation (Using The Menu)
OPERATION (USING THE MENU) OPERATION (USING THE MENU) MENU DESCRIPTIONS Push on the rotary encoder to access the Header Menu. Turn the rotary encoder to select an item, press the rotary encoder to enter in the sub-menu. If you are already in the sub-menu, you can also select by using the arrows in the top left of the touchscreen. •... -
Page 18: Resetting To Factory Settings
Energy Saver Enabled: Reduces the amplifier power consumption when not in used. • DPU Mode: If a NEXO DPU unit is connected, select the preferred routing algorithm. RESETTING TO FACTORY SETTINGS To reset to factory Settings, keep the encoder button pushed while resuming from standby status. -
Page 19: Settings Menu
SETTINGS MENU SETTINGS MENU DEFAULT VU-METER MENU DESCRIPTION 1: Speaker preset, the first line shows the Speaker name (here “S118”) and the Speaker mode if any (here “OM” for Omnidirectional) while the second line shows the selected frequency range (here 30 Hz to 120 Hz). The Speaker Mode can be one of the following: On Screen MODE display MODE signification... -
Page 20: Selecting The Proper Speaker Preset
Press one or several of the “Speaker preset area” (1) on the default screen to access the speaker preset. This menu allows to select either a speaker preset for each selected channel (through the “Series”, “Cabinet”, “Mode”, and “Cross-over” button), or four-channel speaker preset arrangement provided by NEXO (through the “NEXO” button). -
Page 21: Inpatch And Outpatch
From the default screen, the Speaker Preset Name (1) will blink alternatively with the output letter and the output pinout (1+/1- or 2+/2- of the NL4 connector). Check that the NEXO Speakers are correctly connected. Send some low-level audio or test signal into the NXAMPmk2 and check that each Speaker or Sub is outputting a non-distorted sound (you might need to check the channel output volume first, see next paragraph). -
Page 22: Delay
SETTINGS MENU continuing to turn the wheel, but other selected channels may still increase the setting; Be careful not to change a gap between two channel settings when selecting multiple channels at the same time. NB: You can adjust large differences of gain between channels with the volume menu. There is no difference between gain and volume setting;... -
Page 23: Array-Eqs
SETTINGS MENU NB: You can adjust larger differences of gain between channels with the volume menu. There is no difference between gain and volume setting; this distinction is only done by analogy with traditional amplifiers. The CPU will always check gain, volume, patch and headroom settings and decide what the best combination is between analog or digital gain to optimize the dynamic range of the system. - Page 24 SETTINGS MENU 1: Type of filter, to select between Bell (Parametric), HighPass (2 Order), LowPass (2 Order), HighShelf (with adjustable Q), LowShelf (with adjustable Q) or Notch. 2: Frequency adjustment, to select among the 120 center frequencies available for each filter from 20 Hz to 20 kHz.
- Page 25 SETTINGS MENU 4: Q Factor adjustment, to select among the 40 steps available for each filter from 0.1 to 10. Select 2,3 or 4 and adjust the value with the wheel. 5: Mute, to mute the edited channel 6: Add an EQ point. Up to 8 EQ point can be set for each channel. 7: Delete an EQ point.
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Page 26: Using The Amplifier Without The Tdcontroller Functionality
HEADER MENU 12: Add a new EQ point and enters the EQ point menu described above. 13: Flat, go back to a flat EQ curve. 14: Paste the EQ curve previously copied from another channel. You can paste on several channels at a time. -
Page 27: Scene
HEADER MENU SCENE On the above picture you can see “Scene” followed by scene number. You can save or recall a user scene (32 slots available). A scene if a copy of all NXAMPmk2 audio parameters, like a snapshot. However other parameters like network settings or user interface preferences are not part of a Scene. -
Page 28: To Recall A Scene
HEADER MENU TO RECALL A SCENE Select “Scene” in Header menu: Choose one of the user scenes (Theatre B for example), press Recall and Confirm. PAGE 28 / 70 NXAMPMK2 USER MANUAL... -
Page 29: System Headroom
HEADER MENU SYSTEM HEADROOM The System Headroom menu displays for each channel (selected by the top buttons Ch.1 to Ch.4) the headroom available from both the amplifier channel and the speakers connected to it. On the amplifier headroom monitoring part, two vu-meters with a 60 dB scale are displaying the Output Voltage and the Output Current, both referring to 0 dB being the maximum voltage of the maximum current the amplifier can output. -
Page 30: Global
HEADER MENU GLOBAL The global parameters than can be logged are the followings. • MAINS1 and MAINS2 (NXAMP4x4mk2 only) Voltage. • Power Supply1 and Power Supply 2 (NXAMP4x4mk2 only) Voltage. • Analogue Input Level A, B, C or D. • Digital Input Level E, F, G or H. -
Page 31: Options
OPTIONS OPTIONS The Option menu, accessible from the Header Menu, gives access to a large range of settings for many of the NXAMPmk2 parameters. This section describes each available sub-menu. ALERTS On this screen are displayed all the data stored about Errors, Alarms, Warnings (see APPENDIX). •... -
Page 32: Monitoring Mode
OPTIONS This menu allows setting up all the NXAMPmk2 Load Monitoring parameters per channel. Basically, this monitoring function measures the impedance on the amplifier channel at one frequency point and can report 2 alerts (“High” or “Low” impedance) if the measured impedance is out of the given low/high user-defined range. -
Page 33: Frequency
OPTIONS • External generator: The Load Monitoring uses an external HF pilot tone (sent to the NXAMPmk2 with the audio program) and this signal is used to measure the impedance of the connected speakers. FREQUENCY Here can be adjusted the frequency at which the impedance measurement will be done for the speaker(s) connected to the channel selected. -
Page 34: Screen & Appearance
SCREEN & APPEARANCE Allows you to customize the screen (background image, tint colour and luminosity). The Inactive Screen background image can be set using NEXO NeMo. Please refer to NEXO NeMo's user guide for more information. However, it is still possible to delete an image set by NeMo from this menu. Then, the Inactive View background is the simply the tint colour. -
Page 35: Device Id
The Device ID can be edited on Dante™ Controller by editing it directly in the Dante™ card name. NAME Here can be modified the NXAMPmk2 name, used and displayed by the remote-control software (NEXO NeMo). NB: The NXAMPmk2 name is not the same than the Dante™ card name, but a function is available in NeMo to sync them on request (see NeMo user guide). -
Page 36: Ip Address / Netmask
OPTIONS • “Static” mode allows the user to use a fixed IP address and netmask for the amplifier. This mode can be used in some cases when the NXAMPmk2 needs to be included in a wider existing network with a strict structure already established (on fixed installations for example). - Page 37 The name of the subscribed transmitter(s) can be checked into the Dante On the below picture, we can see for example that the NXAMPmk2 with the Dante™ card name “Y01 - NEXO-NXAMP4x4mk2-062c60” has subscribed to channel 01, 02, 0 and 0 from the Dante device named “NEXO-PC”...
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Page 38: Groups And Zones
OPTIONS The digital audio status for the NXAMPmk2 is declared OK if all digital input channels E/F/G/H are declared OK, otherwise all analog inputs are un-muted. A digital input itself is declared OK if connected to nothing (aka. not patched) or patched with a subscription and an audio stream valid, otherwise if the stream is failing or the subscription is unresolved the input is declared faulty. -
Page 39: Gpio Setup
OPTIONS From the remote-control software NEXO NeMo, it is possible to create groups of devices and zones of channels. They are saved in a document called session. When a session is online, the NXAMPmk2s are aware of the groups and zones they belong to. -
Page 40: Input Pins Configuration
OPTIONS INPUT PINS CONFIGURATION In Custom Mode, to configure the input pins (control functions), press GPInputs. Input pins are numbered from GPI 1 to GPI 5. Then choose a parameter (see table below, e.g. Switch Scene), then if needed a first and a second option (e.g. -
Page 41: Output Pins Configuration
OPTIONS Recalls a scene. It is possible to assign this Scene Scene i Scene function to several pins to be able to switch Recall between several scenes. Channel Mute i Channel Mutes or unmutes one channel. mute OUTPUT PINS CONFIGURATION In Custom Mode, to configure the output pins (monitoring functions), press GPOutputs. -
Page 42: Device Information
OPTIONS Reflects or inverse the state of a GPInput (with GPI follow- small delay and without glitch). Example of GPI i use: send to another amp the Impulsive recall scene. Channel Channel has output current. Reflects the signal Sense ch. i Channel sense LED. -
Page 43: Delay Unit
OPTIONS DELAY UNIT You can select the unit for the delay, between millisecond, meter or feet. OUT MODE By default, output mode is set to “Dynamic” meaning that if two speakers with output on Speakon 4 poles, 2+/2- pins, are set up to adjacent Speakon, the controller will automatically cross the amplifier outputs to have the channel 1 outputting on Speakon A and Channel 2 outputting Speakon B and so on. -
Page 44: Energy Saver Enabled
ALERTS LIST ENERGY SAVER ENABLED When enabled, the amplifier goes to Energy Saver Mode when no input signal has been received during a given time interval. The power consumption is then reduced. When input signal is received again, the amplifier leaves the Energy Save Mode. You can adjust the No-signal time interval from 1 minute to 3 hours. -
Page 45: Power Supply1 Overtemperature
ALERTS LIST POWER SUPPLY1 OVERTEMPERATURE Abnormal temperature A. Environmental has been detected by the FAN starts rotation at max temperature is too high temperature sensor on Check the air flow speed B. Unexpectedly the heat sink of the power overloaded supply. -
Page 46: Fan3 Error
ALERTS LIST FAN3 ERROR Number of malfunctioned This alert is triggered when fans: CPU cannot sense the fan's 1 of 3: Display alert actual rotation speed, which message on GUI. implies: 2 or more of 3: Error detected on Fan 3 Call service center A. -
Page 47: Amplifier Overtemperature Level3
FRONT PANEL DESCRIPTION A: SPEAKON 4 POLES OUTPUT There are four connectors like this on the front panel. These connectors will be used to connect any NEXO speaker that uses the same type of connector. NXAMPMK2 USER MANUAL... -
Page 48: B: Speakon 8 Poles Output
B: SPEAKON 8 POLES OUTPUT There are two connectors like this on the front panel. These connectors will be used to connect the NEXO speaker of your choice, if it uses the same type of connector of it is uses EP6 connector. The use of speakers with EP6 connectors means the use of external pin to pin adaptor from speakON 8 to Amphenol EP6 with the following arrangement. -
Page 49: E: Rs232 Port
• 2 x IEC mains cable with lockable connector (available with EU or US plugs) can be purchased from NEXO separately. OPERATING THE DPU Using the DPU is straightforward, as there is nothing to set up. The only requirement is that the NXAMPmk2 firmware supports the DPU, otherwise it will stay in Stand-by mode with nothing patched on its front panel connectors. -
Page 50: Dpu Front Panel Connectors Routing
DPU DIGITAL PATCHING UNIT FOR NXAMP Connect the two four poles speakON cables between NXAMPmk2 (Speakon A and C) and DPU (Input A and C) and connect the RS232 port between the NXAMPmk2 and the DPU using a crossover cable (see serial port cabling above). - Page 51 DPU DIGITAL PATCHING UNIT FOR NXAMP (1) Speaker Name The speaker name is indicated next to each plug to be used. For example, bellow for a set of PS15R2. You will notice that the second line of the display is used, meaning that the output is on the 2+/2- pair of each speakON 4 connector.
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Page 52: Unused Front Panel Connectors
DPU DIGITAL PATCHING UNIT FOR NXAMP UNUSED FRONT PANEL CONNECTORS The DPU will always try to use the maximum of outputs available to fit all the need of the user without external adaptor or difficult cabling. Thus, sometimes the same channel is routed on several outputs. Even if the DPU will never output a speaker signal on a wrong pinout, check the display information to be sure to load the wanted amplifier channel. -
Page 53: Remote Control - Nexo Nemo
REMOTE CONTROL – NEXO N REMOTE CONTROL – NEXO NEMO IP BASED REMOTE CONTROL PROTOCOL NXAMPmk2 can be remote control through an Ethernet network, using the default NXRM104 card fitted into the NXAMPmk2 expansion slot, or one of the optional digital audio input cards, all featuring Ethernet port for the remote control. -
Page 54: Nemo (Nexo Remote): Nxampmk2 Control Software
NEMO (NEXO REMOTE): NXAMPMK2 CONTROL SOFTWARE NEXO NeMo is the remote control app of a set of NEXO products (NXAMP Powered TD-controllers, DTD Digital TD-controllers). It allows you to control from an Apple iPad, iPhone, iPod Touch through a Wi-Fi network and from a Mac through a wired or Wi-Fi network one or many NEXO devices. -
Page 55: Other Remote-Control Options
Ethernet port. To proceed to the firmware update of the NXAMPmk2 device, it is necessary to use NEXO NeFu. The installation file of NEXO NeFu is provided with the LOAD firmware package which is available on the NEXO website. - Page 56 Automatically notifying for new application and firmware version. • Better error handling. • Exporting a log of the update process. Check out our web site nexo-sa.com for more information about NEXO NeFu features and the latest released version. PAGE 56 / 70 NXAMPMK2 USER MANUAL...
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Page 57: Accessories
ACCESSORIES ACCESSORIES NXDT104MK2 Dante card, 4 audio streams (24-bits / 48 or 96kHz) and remote control. 3-port design (3 port Gigabit Switch or 2 Dante redundant ports + remote control). NXES104 EtherSound card, extracts 4 audio streams (24- bits / 48kHz) from the 2 x 64 channels of an ES100 EtherSound stream. -
Page 58: Dmu
ACCESSORIES The DMU enables easy monitoring of all activity on the NXAMPmk2’s audio inputs, with signal and power supply coming from the amplifier’s GPIO port. Front panel features include four analogue XLR inputs plus link, three RJ45 ports for digital audio networking and LED VU meters. -
Page 59: Maintenance
MAINTENANCE MAINTENANCE Hardware maintenance WARNING! Always unplug the NXAMPmk2 from the main before cleaning it. Check regularly the dust level of the air intakes of the NXAMPmk2. If some dust is inserted into the cooling tunnel of the amplifier, use compressed air to remove it from the amplifier. The chassis and the front panel can be cleaned using a dry cloth. -
Page 60: Technical Specifications
TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS NXAMP4x1mk2 NXAMP4x2mx2 NXAMP4x4mk2 Power specifications Number of channels 4 x amplifiers channel, 2 by 2 bridgeable Max. output voltage (no load) 4 x 105 Volts 4 x 140 Volts 4 x 180 Volts Max. output voltage (4x8 Ohms) 4 x 600 Watts 4 x 1200 Watts 4 x 1900 Watts... -
Page 61: Thermal Dissipation And Current Drawn
THERMAL DISSIPATION AND CURRENT DRAWN (*) Other power cables are available from NEXO. Please ask NEXO distributor. THERMAL DISSIPATION AND CURRENT DRAWN NXAMP4X1MK2 WITH 2 OHMS LOAD ON EACH CHANNEL Line Current (A) Watts Thermal Dissipation Dissipated 120 V 230 V... -
Page 62: Drawings And Dimensions
DRAWINGS AND DIMENSIONS DRAWINGS AND DIMENSIONS 88 mm 80 mm 1 2 mm PAGE 62 / 70 NXAMPMK2 USER MANUAL... -
Page 63: Log And Alert Parameters
ALERT PARAMETERS LOG AND ALERT PARAMETERS Below is the full list of any global or per channel information that can be logged into the NXAMPmk2 or remotely, and if this piece of information can raise an alert. Global/Ch. Name Description Range Alert Mains voltage (in V) measured from the... - Page 64 LOG and ALERT PARAMETERS Peak voltage (in dBFS, 0dBFS being the clip level of the voltage sense converter) Output voltage (per of a channel (accuracy of ±3dB, and ✓ -60, 0 dBFS ch.) maximum rate of 25Hz). A non-null value informs you a signal is being sent to the output.
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Page 65: License Information
ICENSE INFORMATION Amp DC out — The output DC value of a given amplifier ✓ Power Amp DC 0, 1 channel is greater than 10V. Output Alert (per ch.) Over-temperature value of the power Amp overtempt — amplifier (no over-temperature, >65°C Power Amp ✓... -
Page 66: Weee Information
WEEE INFORMATION WEEE INFORMATION INFORMATION FOR USERS ON COLLECTION AND DISPOSAL OF OLD EQUIPMENT: This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products should not be mixed with general household waste. For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in accordance with your national legislation. -
Page 67: Informations Concernant La Collecte Et Le Traitement Des Dechets D'equipements Electriques Et Electroniques
WEEE INFORMATION INFORMATIONS CONCERNANT LA COLLECTE ET LE TRAITEMENT DES DECHETS D’EQUIPEMENTS ELECTRIQUES ET ELECTRONIQUES Le symbole sur les produits, l’emballage et ou les documents joints signifie que les produits électriques ou électroniques usagés ne doivent pas être mélangés avec les déchets domestiques habituels. -
Page 68: User Notes
USER NOTES USER NOTES PAGE 68 / 70 NXAMPMK2 USER MANUAL... - Page 70 NEXO S.A. Tel : +33 (0)3 44 99 00 70 Parc d’Activité Fax : +33 (0)3 44 99 00 30 Du Pré de la Dame Jeanne E-mail : info@nexo.fr B.P.5 nexo-sa.com 60128 Plailly FRANCE...
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