ASHLY NE8250.70 Network Power Amplifier 8 x 250W @ 70V Constant Voltage w/selectable HPF

Product Overview

The Ashly NE8250.70 is a network-enabled 8-channel power amplifier delivering 250W per channel into 70V constant-voltage distributed speaker systems, featuring standard 10/100 Ethernet control, selectable high-pass filters, and Class-D efficiency in a 2U rack-mount chassis. Part of the NE Series platform, the NE8250.70 is the base 70V network amplifier without factory-installed digital audio or DSP option cards, providing a cost-effective starting point for commercial AV distributed audio installations that can be expanded with Dante, CobraNet, AES3, or Protea DSP option cards as required. With 2000W total output and remote standby, DC voltage gain control, and calibrated front-panel attenuators, the NE8250.70 addresses the core requirements of multi-zone commercial audio installations in retail, hospitality, education, and institutional environments.

Product Description

The NE8250.70 is Ashly's standard 8-channel 70V network amplifier, providing the NE Series platform's core feature set of 10/100 Ethernet control, DC voltage remote gain, and selectable high-pass filter frequencies for 70V loudspeaker protection. All 8 channels deliver 250W into 70V loads simultaneously, providing 2000W total output for distributed speaker systems across large commercial facilities. The selectable HPF settings (80 Hz, 400 Hz, or off) protect 70V speakers from low-frequency content they are not designed to handle, a common requirement in distributed audio systems. Stepped, calibrated front-panel attenuators provide consistent and repeatable level settings during system commissioning, and each channel includes a four-stage level meter plus output current and temperature indicators for monitoring. DC voltage remote gain control on each input channel allows volume management from wall remotes such as the Ashly WR-5 without computer access. Standard Ethernet provides remote control and monitoring through Ashly Protea NE software, and the remote power standby function enables energy management from the control system. The unit can be customized with Protea DSP, AES3, Dante, or CobraNet option cards, making it adaptable to specific installation requirements. A temperature-sensitive variable-speed fan with front-to-back airflow manages thermal load during continuous operation. The NE8250.70 is built in the United States and certified cTUVus, CE, FCC, and RoHS.

Key Features

• 8-Channel 70V Output — 250W per channel (2000W RMS total) for constant-voltage distributed speaker systems.
• Selectable High-Pass Filter — 80 Hz, 400 Hz, or off to protect 70V loudspeakers from low-frequency content.
• Standard Ethernet Control — 10/100 Ethernet for Protea NE software remote control and monitoring.
• DC Voltage Remote Gain Control — Per-channel DC voltage input for wall remote and building automation volume control.
• Stepped Calibrated Attenuators — Repeatable front-panel level settings for system commissioning.
• 4-Stage Level Meters — Per-channel signal meters plus current and temperature indicators.
• Expandable Platform — Accepts Protea DSP, AES3, Dante, and CobraNet option cards.
• Remote Power Standby — Network or contact-closure standby for energy management.
• Variable-Speed Fan — Temperature-sensitive front-to-back airflow cooling.
• Class-D Efficiency — Switching power supply for high-efficiency commercial operation.

Typical Applications

• Retail store multi-zone background music and paging
• Hotel and hospitality distributed audio systems
• Schools and universities with 70V paging systems
• Commercial meeting spaces and conference rooms
• Houses of worship with distributed 70V speaker systems
• Government and institutional public address systems

Technical Specifications

Frequently Asked Questions

Does the NE8250.70 include Protea DSP or a Dante card?

No. The NE8250.70 is the base network amplifier without factory-installed DSP or digital audio option cards. Protea DSP, Dante, CobraNet, and AES3 cards can be added as options. For a unit with Dante and DSP pre-installed, consider the NE8250.70PED.

What is the purpose of the selectable high-pass filter?

The HPF settings (80 Hz, 400 Hz, or off) protect 70V distributed loudspeakers from low-frequency signals they are not designed to handle. Selecting the appropriate HPF extends speaker life and prevents damage in systems where low-frequency content is present in the source signal.

How is the NE8250.70 controlled remotely?

Remote control and monitoring are provided through Ashly Protea NE software over standard 10/100 Ethernet. DC voltage inputs allow per-channel gain control from wall remotes, and remote power standby can be activated from the control system.

Can the NE8250.70 be bridged for more power?

Yes. Channels can be bridged mono, allowing pairs of channels to deliver higher output power into a single load. Front panel and software indicators confirm bridge mono operation.

What option cards are available for the NE8250.70?

The unit accepts Protea DSP, AES3 digital input, Dante, and CobraNet option cards in the available expansion slot, allowing the amplifier to be customized for specific installation requirements.