ASHLY NX4004 Power Amplifier 4 Channel x 400 Watts @ 2 Ohms

Product Overview

The Ashly NX4004 is a four-channel Class-D multi-mode power amplifier delivering 400 watts per channel across all load configurations — 70V, 100V constant-voltage, and 2, 4, or 8 ohm low-impedance. As a base-level NX series amplifier without network control or onboard DSP, the NX4004 provides dependable multi-zone output for commercial AV installations where signal processing and control are handled externally. The consistent 400W/ch output across all impedances makes capacity planning straightforward for multi-zone commercial installations. The universal switch-mode power supply accepts 120V or 230V AC, making the NX4004 deployable in both domestic and international projects.

Product Description

The Ashly NX4004 commercial AV amplifier delivers four-channel multi-mode amplification at 400W/ch in a rack-mount chassis. Each channel is independently configurable for 70V or 100V constant-voltage or low-impedance operation at 2, 4, or 8 ohms via rear panel DIP switches, requiring no software for initial setup. This makes the NX4004 a practical choice for commercial installation contractors who manage signal processing through an external DSP processor and need reliable amplifier output across four zones. The 400W/ch output at all impedances is well-matched for boardroom AV systems, training rooms, corporate meeting spaces, and commercial installations with moderate per-zone output requirements. Class-D switching amplifier technology with switch-mode power supply provides high efficiency and lightweight chassis construction, appropriate for permanent rack-mount deployment. Multiple independent internal power supplies deliver improved channel separation and reliability across all four channels simultaneously. The front panel level controls and power switch can be disabled to prevent unauthorized adjustments in publicly accessible installations. Continuously variable cooling fans minimize noise during low-demand periods such as meetings and presentations. Remote DC level control per channel supports external volume control and zone management integration. The Ashly EMS provides automatic sleep mode drawing less than 1 watt during idle periods. The NX4004 is TAA compliant, manufactured in the United States, and carries a 5-year limited warranty.

Key Features

• 400 W/Ch Across All Loads — Consistent 400W/ch at 70V, 100V, 8 ohm, 4 ohm, and 2 ohm for straightforward multi-zone capacity planning.
• 4-Channel Multi-Mode Output — Each channel independently configurable for constant-voltage (70V/100V) or low-impedance (2/4/8 ohm) via rear DIP switches.
• No Network or DSP — Base-level NX series; output mode set via DIP switches. Designed to work alongside external DSP processors.
• Class-D Switching Technology — Switch-mode PSU auto-detects 120V or 230V AC for international compatibility.
• Multiple Independent Power Supplies — Separate supplies per channel for improved channel isolation and reliability.
• Lockable Front Panel Controls — Power switch and level controls can be disabled for secure installation in public spaces.
• Remote DC Level Control — Per-channel control input for external zone management integration.
• Continuous Variable Cooling Fans — Adaptive fan speed reduces noise during low-demand operation.
• Ashly EMS Energy Management — Automatic sleep mode draws less than 1 watt; defeatable.
• 5-Year Limited Warranty — Manufactured in the United States; TAA compliant, RoHS, cTUVus, CE, and FCC certified.

Typical Applications

• Boardroom and conference room AV systems with external DSP
• Commercial meeting space and training room distributed audio
• House of worship distributed speaker systems
• Government and institutional fixed installation
• Convention center and ballroom multi-zone audio
• Multi-purpose room systems with external signal processing

Technical Specifications

Frequently Asked Questions

Does the NX4004 include network control or DSP?

No. The NX4004 is a base-level NX series amplifier configured entirely via rear DIP switches. For network control, consider the NXE series. For DSP, consider the NXP series.

Can the NX4004 drive 70V and low-impedance speakers?

Yes. Each of the four channels is independently configurable for 70V or 100V constant-voltage or 2, 4, or 8 ohm low-impedance via rear DIP switches.

Does the NX4004 work on international power?

Yes. The switch-mode power supply auto-detects 120V or 230V AC input for international deployment.

Can the front panel controls be locked?

Yes. The front panel power switch and level controls can be disabled to prevent unauthorized adjustments in public-facing installations.

What is the NX4004 warranty?

The NX4004 carries a 5-year limited warranty and is manufactured in the United States. It is TAA compliant and certified RoHS, cTUVus, CE, and FCC.