Related Manuals for Nexo NXAMP4x4
Summarization of Contents
FCC INFORMATION (U.S.A.)
FCC Compliance Notice
Information regarding FCC regulations, modifications, and potential interference issues.
IMPORTANT SAFETY INSTRUCTIONS
General Safety Instructions (1-13)
Essential safety guidelines covering reading, keeping, heeding, and following all instructions.
PRECAUTIONS
General Warning
A general warning about following basic precautions to avoid injury, death, or damage.
PRECAUTIONS
Power Supply and Cord Precautions
Safe handling and usage of power supply cords, including grounding and protection.
Device Operation and Safety
Precautions for device operation, water exposure, and handling abnormalities.
Location and Environment
Guidance on proper placement, ventilation, and environmental considerations for the device.
Usage and Maintenance Cautions
Cautions related to device usage, connections, and periodic maintenance.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Earthing Requirements
Specific instructions for earthing the apparatus as required for UK installations.
COMPLIANCE INFORMATION STATEMENT (DECLARATION OF CONFORMITY PROCEDURE)
EMC Compliance Statement
Statement regarding device interference and compliance with operational guidelines.
EUROPEAN MODELS
Model Specifications
Purchaser/User information and conformance details for European models.
NXAMP VERSUS NX242: WHAT’S NEW?
What’s Remaining the Same?
Comparison of core DSP, level, latency, and software between NXAMP and NX242.
What’s Changed?
Overview of key improvements and changes in the NXAMP compared to NX242.
GENERAL DESCRIPTION
Global Architecture
Overview of the architectural components of the NXAMP4x1 and NXAMP4x4 amplifiers.
Power Supply Block
Description of the power supply unit's importance and configuration in the NXAMP.
Analog Input Block
Details on the analog input stage, including filtering and buffer circuits.
Control Block
Explanation of the control block's sub-components and signal flow.
Power Amplifier Blocks
Description of the custom power amplifier design and its technology.
Power Outputs Block
Information on the power outputs block, its sensing capabilities, and routing.
User Interface Block
Overview of the user interface components and their availability via software.
Communication Block
Description of the communication block, including RS232 and GPIO ports.
Expansion Slot Block
Details on the expansion slot for adding functionality like Ethersound or Dante.
BLOCK DIAGRAM DESCRIPTION
Patching and Routing (1)
Explanation of signal patching and routing capabilities for analog and digital inputs.
Delay & Polarity Inversion (2)
Details on factory and user-adjustable delay settings and polarity inversion.
Equalisation & Filtering
Information on subsonic, VHF filtering, and wideband acoustical response equalization.
Crossover Section (6)
Explanation of crossover tuning for cabinets, phase alignment, and filter types.
Post Protection EQ and Low Pass (27) (28)
Description of EQ/low pass filtering applied after protection algorithms.
Gain Section (29)
Explanation of digital gain application and its dependency on user settings.
MENU DESCRIPTION
Changing Cabinet Family
Procedure for changing the speaker setup and cabinet family for the NXAMP.
Adjusting Volume
How to adjust the volume for each channel using the front panel controls.
Adjusting Delay
Steps for adjusting the delay for each channel in meters or other units.
Adjusting Gain
Method for adjusting the gain for each channel in dB.
Adjusting Array EQ
How to adjust the Array EQ for each channel to compensate for stacking effects.
Adjusting Headroom
Process for adjusting the headroom setting for optimal signal matching.
Headroom Concept
Explanation of how headroom settings match input/output analog gain.
MENU DESCRIPTION
Options Menu
Accessing sub-menus for advanced amplifier parameter adjustments.
System Config
Procedure for changing speaker setups within or across families.
Nexo Config
Selecting pre-defined speaker setups from NEXO's configurations.
Custom Config
Building custom speaker setups by selecting series, models, and modes.
NXWIN4 SOFTWARE FOR NXAMP FIRMWARE UPGRADE
What you need to upgrade your NXAMP
List of requirements for upgrading NXAMP firmware via serial or network ports.
Serial Port Upgrade
Steps and requirements for upgrading firmware via the RS-232 serial port.
Network Port Upgrade (from NXES104 or NXDT104)
Instructions for upgrading firmware via network ports using NXES104 or NXDT104 boards.
Connect the Computer to the NXAMP
Connecting the computer to the NXAMP for firmware upgrade using serial or network ports.
(1) Remote ES100 Port
Using the Remote ES100 port for NXAMP firmware upgrades when NXES104 is fitted.
NXWIN4 SOFTWARE FOR NXAMP FIRMWARE UPGRADE
(2) Ethersound™ IN Port
Utilizing the Ethersound™ IN port for NXAMP firmware upgrades.
(3) RS-232 Serial Port
Using the RS-232 serial port for NXAMP firmware upgrades, with or without expansion boards.
(4) Dante™ Primary, Secondary or Remote Port
Using Dante™ ports for firmware download and upgrading multiple NXAMPs.
Put the NXAMP in Download Mode
Procedure to put the NXAMP into download mode for firmware updates.
NXWIN4 SOFTWARE FOR NXAMP FIRMWARE UPGRADE
Using the NXwin4 Software
Installation and usage instructions for the NXwin4 firmware update software.
Begin the Upgrade
Confirmation and initiation steps for the NXAMP firmware upgrade process.
USING THE CONTROLLER AFTER A FIRMWARE UPDATE
Choosing a Cabinet Setup
How to select a cabinet setup after a firmware update.
Selecting Cabinet Family
Procedure for selecting the cabinet family after a firmware update.
Select Your Cabinet Set-up
Steps to select a specific cabinet setup within a family or custom configuration.
NXAMP TECHNICAL SPECIFICATIONS
Power Specifications
Detailed power output and consumption specifications for NXAMP4x1 and NXAMP4x4.
Analog Inputs to Power Out Specifications
Specs for analog inputs, freq response, impedance, latency, and power supply.
Front and Back Panel Features
Description of audio inputs, power outputs, ports, and front/rear panel features.
Dimensions & Weight
Physical dimensions and weight specifications for NXAMP4x1 and NXAMP4x4.
NXAMP TECHNICAL SPECIFICATIONS
User Controls Overview
Summary of user-configurable parameters like system selection, setup, protection, and gain.
NXAMP THERMAL DISSIPATION AND CURRENT DRAWN
Test Signal and Conditions
Details of the test signal (Pink Noise) and conditions used for measurements.
NXAMP4X1 Power Draw
Current and power dissipation values for NXAMP4x1 at different loads and voltages.
NXAMP4X4 Power Draw
Current and power dissipation values for NXAMP4x4 at different loads and voltages.
NXAMP DIMENSIONS
NXAMP4X1 Front View Dimensions
Front view dimensional drawings and measurements for the NXAMP4x1.
NXAMP4X4 Front View Dimensions
Front view dimensional drawings and measurements for the NXAMP4x4.
NXAMP4X1 and NXAMP4X4 Top View Dimensions
Top view dimensional drawings and measurements for both NXAMP models.
DMU TECHNICAL SPECIFICATIONS
DMU Metering Features
Specifications for integrated vu-meters and network activity LEDs on the DMU.
DMU Front Panel Features
Description of analog audio and network connectors on the DMU front panel.
DMU Back Panel Features
Details on back panel analog audio, network, and GPIO connectors.
DMU Specifications
Power supply, dimensions, weight, certifications, and green status of the DMU.
DMU Ordering Information
Information on ordering the Digital Meters Unit and its associated cable kit.
DPU TECHNICAL SPECIFICATIONS
DPU Routing Features
Routing matrix capabilities for connecting inputs to outputs.
DPU Front Panel Features
Description of SpeakON outputs and LCD displays on the DPU.
DPU Back Panel Features
Details on NXAMP power inputs, NXAMP interface, and mains inputs.
DPU Displayed Information
Information displayed on DPU front panel screens regarding speaker connection.
DPU Specifications
Power supply, dimensions, weight, certifications, and green status of the DPU.
DPU Ordering Information
Information on ordering the Digital Patching Unit and its associated cable kits.
DMU DIMENSIONS
DMU Top and Front View Dimensions
Dimensional drawings and measurements for the DMU.
DPU DIMENSIONS
DPU Top and Front View Dimensions
Dimensional drawings and measurements for the DPU.
NXES104 & NXDT104 TECHNICAL SPECIFICATIONS
Network and Audio Format
Specifications for network format, addressing, channels, resolution, and latency.
Front Panel Features
Description of network inputs, additional ports, and status LEDs.
Specifications
Details on power supply, dimensions, weight, EMC, and green status.
Ordering Information
Ordering codes for NXES104 and NXDT104 expansion boards.
APPLICATION NOTE: DRIVING THE SUB FROM THE AUX SEND
Phase Relation between AUX and MAIN Output
Discussion on phase alignment issues when using AUX send for subwoofers.
Why AUX and MAIN Phase is Unlikely to Match
Reasons for phase discrepancies, including filters, digital processing, and path differences.
Consequences of Badly Aligned Systems
Effects of misaligned systems on efficiency, sound quality, and reliability.
APPLICATION NOTE: DRIVING THE SUB FROM THE AUX SEND
Phase Alignment Example
Illustrative example showing phase and magnitude differences with delayed signals.
Precautions & Check
Steps to ensure correct phase alignment before and during system setup.
APPENDIX A: LIST OF SUPPORTED PRESETS (LOAD3_15)
Preset Documentation Reference
Reference to documentation for lists of supported 4-channel and speaker setups.
APPENDIX B: HOW IS MEASURED THE AMPLIFIER POWER?
General Description of the Setup
Overview of the test setup used for measuring amplifier power output.
Precision of the Measurement
Factors affecting measurement precision, including calibration and component tolerances.
Measurement Method
Detailed procedure for measuring amplifier power using burst sine waves and THD+N analysis.
USABLE MAINS CORD IN EUROPE
NXAMP4X1 Mains Cord Options
List of approved plugs, cords, and connectors for NXAMP4x1 in Europe.
NXAMP4X1 Mains Cord Options (UK)
List of approved plugs, cords, and connectors for NXAMP4x1 in the UK.
NXAMP4X4 Mains Cord Options
List of approved plugs, cords, and connectors for NXAMP4x4 in Europe.
NXAMP4X4 Mains Cord Options (UK)
List of approved plugs, cords, and connectors for NXAMP4x4 in the UK.
ROHS CERTIFICATE
Hazardous Substances Information
Table indicating presence of hazardous substances and compliance with RoHS standards.
USER NOTES
Contact Information
Contact details for Nexo S.A., including address, phone, fax, and email.
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