ASHLY NX1504 Power Amplifier 4 x 150 Watts @ 2 Ohms

Product Overview

The Ashly NX1504 is a four-channel multi-mode power amplifier delivering 150 watts per channel across all load configurations — 25V, 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 NX1504 is configured via rear panel DIP switches and designed for use with external DSP processors in commercial AV installations requiring four independent output zones with 25V constant-voltage support. The consistent 150W/ch output across all load types including 25V makes the NX1504 a practical multi-zone amplifier for conference rooms, retail spaces, classrooms, and educational facilities that use 25V speaker systems and require four independent zones of amplification without integrated network or DSP overhead.

Product Description

The Ashly NX1504 commercial power amplifier delivers four-channel multi-mode amplification at 150W/ch in a rack-mount chassis. Each of the four channels is independently configurable for 25V, 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 output mode configuration. With 150W/ch across all load types including 25V, the NX1504 is suited for retail spaces, conference rooms, classrooms, and smaller commercial installations where four independent zones with 25V speaker wiring are required and processing is managed by an external DSP system. Class-D switching amplifier technology with switch-mode power supply auto-detecting 120V or 230V AC input provides high efficiency and international deployment compatibility. Multiple independent internal power supplies deliver improved channel separation when all four channels are driven 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. 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 NX1504 is manufactured in the United States, TAA compliant, and carries a 5-year limited warranty.

Key Features

• 150 W/Ch Across All Loads — Consistent 150W/ch at 25V, 70V, 100V, 8 ohm, 4 ohm, and 2 ohm for straightforward four-zone capacity planning.
• 25V Constant-Voltage Support — All four channels support 25V, 70V, and 100V operation, covering 25V speaker systems in smaller commercial installations.
• 4-Channel Multi-Mode Output — Each channel independently configurable for constant-voltage (25V/70V/100V) or low-impedance (2/4/8 ohm) via rear DIP switches.
• No Network or DSP — Base NX series; configured via DIP switches. Designed for use with external DSP processors.
• 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 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

• Retail space and commercial building four-zone 25V/70V distributed audio
• Conference room and meeting space multi-zone audio with external DSP
• Classroom and educational facility multi-zone 25V audio
• Government facility and institutional fixed installation
• Multi-zone commercial installation with external signal processing

Technical Specifications

Frequently Asked Questions

Does the NX1504 include network control or DSP?

No. The NX1504 is a base NX series amplifier configured via rear DIP switches. For network control at this output level with four channels, see the NXE series. For DSP, see the NXP1504.

Does the NX1504 support 25V constant-voltage speakers?

Yes. All four channels support 25V, 70V, and 100V constant-voltage operation, making it compatible with 25V speaker systems in smaller commercial spaces and educational facilities.

Does the NX1504 work on international power?

Yes. The switch-mode power supply auto-detects 120V or 230V AC input for international installation compatibility without adjustment.

Can the front panel controls be locked?

Yes. The power switch and level controls can be disabled to prevent unauthorized adjustment in publicly accessible installations.

What is the NX1504 warranty?

The NX1504 carries a 5-year limited warranty and is manufactured in the United States. It is TAA compliant and certified RoHS, cTUVus, CE, and FCC.