Ashly

Ashly ne4250.25BD 4-Channel Amplifier with OPDante and OPDAC4 Option Cards

$3,449.00

Part of Ashly's Protea NE series, the ne4250.25BD is designed for constant-voltage (high-impedance) sound systems in commercial and installed applications. It is built on an efficient Class-D platform with a switching power supply for reliable and energy-efficient performance. The unit comes with factory-installed Dante and OPDAC4 option cards, simplifying setup for networked audio systems. Control and monitoring are performed over an Ethernet network using Ashly's Protea NE Software, which simplifies installation and management. The software allows for the configuration of a selectable high-pass filter (80Hz or 400Hz) and offers remote control over attenuators, preset recall, and power standby.

View Product Features

• 4-Channel Amplifier: Delivers 250W per channel at 25V constant voltage.
• Integrated Dante: Includes pre-installed OPDante network audio input module.
• Network Control: Standard 10/100 Ethernet for control and monitoring with Protea NE software.
• Bridgeable: Channels can be bridged for higher power output.
• Class-D Output: Energy-efficient and reliable performance.
• Selectable HPF: Software-controlled high-pass filters (80Hz or 400Hz).
• Remote Control: Supports remote standby, level control, and preset recall via contact closures.
• LED Indicators: Front-panel LEDs display power, standby, protect, network communications, signal levels, and status.
• Standardized Connectors: Uses Euroblock connectors for secure and reliable audio and control wiring.

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About the Ashly ne4250.25BD 4-Channel Amplifier with OPDante and OPDAC4 Option Cards

The Ashly ne4250.25BD is a fully equipped, network-centric four-channel amplifier designed as a comprehensive audio endpoint for sophisticated constant-voltage installations. This model includes two critical option cards: an OPDante card for Dante Audio over IP connectivity and an OPDAC4 card providing four channels of analog-to-digital conversion. This dual-input configuration allows the amplifier to accept audio from both modern digital Dante networks and traditional analog sources simultaneously, offering maximum flexibility for hybrid system designs. It is specifically engineered to directly drive 25V, 70V, and 100V speaker lines, making it an all-in-one solution for commercial distributed audio systems in large venues like shopping malls, airports, and campuses.

The integration of the OPDante card transforms the amplifier into a native device on a Dante network, capable of receiving multi-channel digital audio streams over Ethernet. The OPDAC4 card provides four balanced analog inputs, ensuring backward compatibility with legacy equipment. Onboard DSP is fully accessible for all four output channels, enabling individual parametric EQ, delay, crossover, and limiting to be applied regardless of the input source. This allows for precise acoustic tuning, speaker optimization, and system protection directly within the amplifier, streamlining system architecture by reducing the need for external signal processors.

Built for reliability in 24/7 operation, the ne4250.25BD features robust protection circuitry and efficient Class D amplification in a 1U rack-mountable chassis. Remote monitoring and control of all parameters—including input selection, DSP settings, output levels, and system diagnostics—are available via network software. By combining dual-format audio inputs, constant-voltage outputs, and extensive DSP in a single, network-manageable unit, the Ashly ne4250.25BD represents a highly integrated and future-proof solution for complex, professional audio installations requiring flexible input options and intelligent processing.

Key Features