ASHLY MA250.8 8-Channel Multi-Mode Power Amplifier, 8x250W at 2/4/8 Ohms and 70V/25V

Product Overview

The Ashly MA250.8 is an eight-channel multi-mode power amplifier delivering 250W per channel across 2, 4, and 8 ohm loads and 70V/100V constant-voltage lines, representing the higher-channel-count option in the Ashly MA series commercial installation lineup. Built on Ashly's D-MAX Class D amplifier platform with Advanced Intelligent Power-Sharing, it provides 2,000W total system power for multi-zone distributed audio installations. The MA250.8 is targeted at installations requiring eight independent audio zones from a single 2RU rack-mount amplifier, such as hotels, retail environments, and multi-room commercial facilities.

Product Description

The Ashly MA250.8 provides eight channels of 250W amplification in a 2RU rack-mount chassis, each channel independently switchable between low-impedance (2, 4, or 8 ohms) and constant-voltage (25V, 70V, or 100V) operation. This per-channel mode flexibility allows a single MA250.8 to simultaneously serve zones with different speaker systems, eliminating the need for separate amplifiers in mixed-system installations. Ashly's proprietary D-MAX technology delivers high-efficiency Class D performance, keeping power consumption and heat generation low even under sustained use in commercial environments. The Advanced Intelligent Power-Sharing system dynamically allocates power between channels, ensuring consistent output when channel loads vary across zones. Wiring is handled via removable Euroblock connectors on both the inputs and outputs, simplifying rack installation and maintenance. Each channel includes a switchable 80Hz high-pass filter and clip limiter to protect speakers from low-frequency overload and amplifier clipping. Remote volume control ports per channel support integration with wall-panel VC controls or building automation systems. The front-panel volume knob and Power Standby switch can be locked via a rear-panel switch, preventing unauthorized adjustment in attended public spaces. Comprehensive LED indicators cover signal level, peak, mute, temperature, protect, power, current, bridging, and share modes for all eight channels. Channel pairs can be bridged for applications requiring higher single-zone output. The MA250.8 accepts both 120V AC and 230V AC power, supporting international installations. A 5-year limited warranty from Ashly Audio covers the amplifier for professional commercial installation use.

Key Features

• 8 x 250W Multi-Mode Output — Each channel delivers 250W at 2, 4, or 8 ohms and at 70V/100V constant-voltage, with 250W at 25V, covering all standard distributed audio loads.
• Per-Channel Impedance Switching — Each channel independently selects between Low Z (2/4/8 ohm) and Hi Z (25V/70V/100V), enabling mixed-system zones on one amplifier.
• D-MAX Class D Technology — Proprietary Ashly amplifier stage provides high efficiency, reduced heat output, and lower power draw than conventional linear amplifier designs.
• Advanced Intelligent Power-Sharing — Dynamically allocates total power across all eight channels, maintaining consistent output when individual zone loads vary.
• Channel Bridging — Adjacent channel pairs can be bridged for higher output in zones requiring more power.
• Removable Euroblock Connectors — Input and output connections use removable Euroblock terminals for clean, reliable wiring in professional rack installations.
• 80Hz HPF and Clip Limiter Per Channel — Switchable high-pass filter and limiter protect speakers from overload and extend driver life in commercial installations.
• Remote Volume Control Ports — Per-channel remote VC ports accommodate external wall-panel or control-system volume adjustment.
• Front-Panel Lock — Rear-panel switch locks volume knobs and Power Standby to prevent unauthorized user changes.
• Comprehensive LED Status Display — Front panel LEDs cover signal, peak/mute, temp, protect, power, current, bridging, and share modes for all eight channels.
• Dual-Voltage Power Supply — Accepts 120V AC or 230V AC for domestic and international deployment.
• 5-Year Limited Warranty — Backed by Ashly Audio's standard warranty for professional installation products.

Typical Applications

• Multi-zone hotel and hospitality distributed audio systems
• Retail store background music and paging across multiple zones
• House of worship overflow and lobby zone coverage
• Restaurant and bar multi-area audio installations
• Corporate campus and office building zone audio distribution
• School and educational facility multi-room audio
• Conference room and training room audio systems
• Government and institutional facility distributed audio

Technical Specifications

Frequently Asked Questions

What is the difference between the MA250.8 and the MA500.8?

Both models provide eight channels in 2RU. The MA250.8 delivers 250W per channel for a total of 2,000W, while the MA500.8 delivers 500W per channel for 4,000W total. The MA250.8 is the appropriate choice when per-zone power requirements are moderate.

Can the MA250.8 drive 70V distributed speaker systems?

Yes. All eight channels support 70V and 100V constant-voltage operation at full 250W per channel, making it fully compatible with 70V transformer-tapped distributed speaker systems.

Can channel pairs be bridged for higher power?

Yes. Adjacent channel pairs on the MA250.8 can be bridged, effectively combining two channels into one higher-output channel where a single zone requires more power.

Does the MA250.8 include any DSP processing?

No. The MA250.8 is a pure power amplifier without onboard DSP. Ashly DSP products such as the AQZ32 or FX series can be used upstream in the signal chain to add equalization, delay, and limiting.

How does Intelligent Power-Sharing work?

Advanced Intelligent Power-Sharing dynamically redistributes the amplifier's total power budget across channels in real time, so channels with lighter loads can contribute available headroom to channels under heavier demand.

Is the front panel lockable in installed environments?

Yes. A rear-panel switch locks both the per-channel volume knobs and the Power Standby button, preventing unauthorized changes by venue staff or users.