ASHLY NX4002 Power Amplifier 2 x 400 Watts @ 2 Ohms

Product Overview

The Ashly NX4002 is a two-channel multi-mode power amplifier delivering 400 watts per channel across all supported load configurations — 70V, 100V constant-voltage, and 2, 4, or 8 ohm low-impedance — without network control or onboard DSP. As a base-level NX series amplifier, the NX4002 is configured via rear panel DIP switches for straightforward installation alongside external DSP processors in commercial AV systems requiring two high-output zones. The consistent 400W/ch across 70V and low-impedance loads makes the NX4002 appropriate for conference rooms, corporate meeting spaces, house of worship systems, and commercial installed audio requiring moderate-to-high output per zone in a two-channel format without integrated network management or signal processing.

Product Description

The Ashly NX4002 commercial power amplifier delivers two channels of 400W output for installed audio systems requiring moderate-to-high output 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, with no software required for initial configuration. The 400W/ch output is well matched for boardroom AV systems, corporate meeting spaces, house of worship distributed zones, and commercial installations where 70V distribution or low-impedance speaker arrays require substantial per-zone output. The switch-mode power supply auto-detects 120V or 230V AC input for international deployment without modification. Class-D amplifier technology provides high efficiency in a compact rack-mount form factor. Multiple independent internal power supplies improve channel separation and reliability at full output. Continuously variable cooling fans reduce operating noise during low-demand periods such as conference calls and meetings. The front panel power switch and level controls can be disabled to prevent unauthorized adjustments. Remote DC level control per channel supports integration with external zone management hardware. The Ashly EMS provides automatic sleep mode drawing less than 1 watt during idle periods. The NX4002 is manufactured in the United States, TAA compliant, and carries a 5-year limited warranty.

Key Features

• 400 W/Ch Across All Supported Loads — Consistent 400W/ch at 70V, 100V, 8 ohm, 4 ohm, and 2 ohm for straightforward two-zone capacity planning.
• 2-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 NX series; configured via DIP switches. For two-channel 400W with network control, see the NXE4002. For DSP, see the NXP4002.
• Universal Switch-Mode PSU — Auto-detects 120V or 230V AC input for international installation compatibility.
• Lockable Front Panel Controls — Power switch and level controls defeatable for secure installation.
• 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 corporate meeting space 70V distributed audio
• House of worship distributed zone amplification
• Conference center and commercial space two-zone audio with external DSP
• Government facility and institutional fixed installation
• Installed audio with external DSP requiring moderate-to-high two-channel output

Technical Specifications

Frequently Asked Questions

Does the NX4002 support 25V constant-voltage?

No. The NX4002 supports 70V and 100V constant-voltage and 2, 4, and 8 ohm low-impedance. For 25V support in the 400W tier, there is no NX400x variant with 25V; consider the NX150 series for 25V operation at lower power levels.

Does the NX4002 include network control or DSP?

No. The NX4002 is a base NX series amplifier configured via rear DIP switches. For network control, see the NXE4002. For DSP, see the NXP4002.

Does the NX4002 work on international power?

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

Can the front panel controls be locked?

Yes. The power switch and level controls can be disabled for secure installation in public spaces.

What is the NX4002 warranty?

The NX4002 carries a 5-year limited warranty and is manufactured in the United States. It is TAA compliant and certified RoHS, cTUVus, CE, and FCC.