Nexo NXAMP4X1 User Manual

MENU DESCRIPTION
On the center of the screen will be displayed the various setups with the setups name. On
each side you can select either “Save” or “Recall” function.
To save a user setup select the memory block you want to use (there are 32 different
memory blocks) by turning the wheel till the chosen memory block appears on the top line
of the LCD screen. Then press the “Select 1” button (for “Save”). Anytime you can exit this
menu by depressing the “A” button (for “Back”).
Once the button “Save” has been pressed, you will be requested to enter the name for that
user setup (default name is USERSET followed by the setup number). Starting from the
first character, turn the wheel to choose a letter, and then depress the “select 4” (for
“Next”) button to go to the next letter. Depressing button “select 1” (for “Prev”) will go
back to the previous character. When the last letter has been reached, press the “B” button
again to actually save the setup. A confirmation message will be displayed on screen.
To recall a user setup select the memory block you want to use by turning the wheel till the
chosen memory block appears on the top line of the LCD screen. Then press the “Select 4”
button (for “Recall”). Anytime you can exit this menu by depressing the “A” button (for
“Back”).
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Nexo NXAMP4X1 Specifications

General

Channels	4
Weight	15.5 kg
Output Connectors	Speakon NL4
THD+N	0.05%
Dynamic Range	110 dB (Unweighted)

Summary

FCC Information and Safety

FCC Compliance and Warnings

Information on FCC compliance, warnings, and important safety instructions for the unit.

Quick Start and Front Panel

Front Panel Overview

Describes front panel components: power switch, indicators, LCD, encoder, buttons, and volume controls.

Back Panel and Basic Functions

Rear Panel Connectivity

Safety and Setup Guidelines

Electrical Safety and Precautions

Covers power cord safety, water warnings, handling abnormalities, and general precautions.

Setting Up the NXAMP4x1

Electrical Setup and Safety

Covers earth connection, mains settings, rack mounting safety, and power output wiring.

General Description

System Architecture Overview

Explains the global architecture, power supply, analog input, control, amplifier, and output blocks.

DSP Block Diagram and Protections

Signal Processing Blocks

Describes DSP signal path, patching, delay, EQ, filtering, crossover, and gain sections.

Amplifier Protection Mechanisms

Details various protection circuits including displacement, stress, acceleration, limiting, and temperature controls.

Installation Recommendations

Audio Chain and System Alignment

NXES104 Expansion Board and ESmonitor

Physical Installation and Network Setup

NXWIN4 Firmware Upgrade

Upgrade Procedures

Covers prerequisites, serial port, and Ethersound upgrade procedures using NXWIN4 software.