FX500.4

The Ashly FX500.4 is a professional four-channel Class D power amplifier delivering up to 500 watts per channel into 2Ω or 4Ω loads. Featuring integrated digital signal processing (DSP), built-in Wi-Fi and Ethernet connectivity, it combines high-output amplification with flexible audio routing and network-based configuration. The amplifier supports low-impedance loudspeakers, 25V distributed audio and bridged 70V/100V operation, making it suitable for demanding commercial installations, entertainment venues and multi-zone audio systems.

From The Manufacturer:

The Ashly FX Series combines efficient Class D amplification with integrated DSP and browser-based network control. The FX500.4 provides four amplifier channels, with each channel configurable for low-impedance operation or paired with an adjacent channel for bridged high-impedance operation. Its DSP includes routing, gain, parametric equalisation, compression, limiting, FIR filters, crossover functions, polarity and delay. Configuration is available through Ethernet or the integrated Wi-Fi access point using a web browser.

Key Features:

• Four-channel Class D power amplifier.

• Up to 500W per channel at 2Ω or 4Ω.

• 250W per channel at 8Ω.

• Up to 1,000W per bridged pair at 4Ω.

• 500W per bridged pair at 8Ω.

• Supports 25V distributed audio operation with appropriate DSP limiting.

• Supports 70V and 100V distributed audio when configured in bridged mode.

• Integrated digital signal processing.

• Built-in Wi-Fi access point for direct wireless configuration.

• Ethernet connectivity for wired network control.

• Browser-based configuration interface.

• Balanced microphone/line inputs via removable Euroblock connectors.

• Additional unbalanced RCA analogue inputs.

• S/PDIF digital audio input and output.

• DSP functions include signal routing, parametric EQ, crossover filtering, compression, limiting, FIR filtering, polarity and delay.

• Customisable loudspeaker presets.

• GPIO for integration with external control systems.

• Configurable automatic or manual power-saving mode.

• Front-panel status indicators and power switch.

• Variable-speed fan cooling.

• Universal 100–240V AC power supply.

• Full-width 19-inch, 2U rackmount chassis.

Specifications:

Amplifier

• Model: FX500.4

• Amplifier type: Class D

• Number of amplifier channels: 4

• Low-impedance output configuration: Four independent channels

• High-impedance configuration: Two bridged channel pairs

• Output power at 2Ω: 4 × 500W

• Output power at 4Ω: 4 × 500W

• Output power at 8Ω: 4 × 250W

• Bridged output at 4Ω: 2 × 1,000W

• Bridged output at 8Ω: 2 × 500W

• Output power at 25V: 4 × 320W, subject to appropriate DSP limiter configuration

• Output power at 70V: 2 × 1,000W in bridged mode

• Output power at 100V: 2 × 1,000W in bridged mode

• Total rated system power: Up to 2,000W in supported operating configurations

• Power sharing: Not available on FX500 models; configure each channel according to its rated output and load.

Audio Performance

• Frequency response: 20Hz–20kHz, +0/−0.5dB at 8Ω, 3dB below rated power

• Signal-to-noise ratio: Greater than 108dB, A-weighted, 20Hz–20kHz at 8Ω

• Total harmonic distortion plus noise: Less than 0.05% under the manufacturer's stated test conditions

• Output circuitry: Class D, full-bandwidth PWM modulation

• Integrated DSP: Yes

Inputs and Outputs

• Balanced analogue inputs: Four microphone/line inputs via removable Euroblock connectors

• Additional analogue inputs: Four unbalanced RCA inputs

• Digital audio: S/PDIF input and output

• Network connection: Ethernet RJ45

• Wireless connection: Integrated Wi-Fi access point

• Loudspeaker outputs: Four amplifier channels using removable Euroblock connectors

• GPIO: Removable Euroblock connector for control integration

• USB: No USB audio connection listed in the manufacturer's specifications.

Digital Signal Processing

• Input and output routing.

• Gain and level adjustment.

• Parametric equalisation.

• Crossover and filter configuration.

• Compression and limiting.

• FIR filtering.

• Output polarity adjustment.

• Delay and loudspeaker alignment.

• Customisable loudspeaker presets.

• Browser-based configuration and control.

Power Supply

• Input voltage: 100–240V AC

• Frequency: 50–60Hz

• Typical power consumption: Approximately 1,100W

• Standby power consumption: Less than 0.5W

• Power factor correction: Integrated.

Protection

• Short-circuit protection.

• Output DC protection.

• Undervoltage protection.

• Thermal protection.

• Overload protection.

Specifications are based on Ashly's FX Series manufacturer documentation. Output ratings depend on impedance, bridging configuration and operating conditions.

Included Accessories:

The manufacturer's listed package contents include:

• Ashly FX500.4 amplifier.

• Two rack ears.

• Four adhesive rubber feet.

• IEC AC power cable.

• Removable Euroblock input connectors.

• Removable Euroblock GPIO connector.

• Removable Euroblock loudspeaker output connectors.

Confirm the exact contents with the supplier before listing them as guaranteed for every retail package.

Applications:

• Commercial sound reinforcement.

• Retail stores and shopping centres.

• Restaurants, cafés and hospitality venues.

• Conference rooms and meeting facilities.

• Corporate offices and reception areas.

• Houses of worship.

• Auditoriums and multipurpose venues.

• Distributed 70V and 100V public-address systems.

• Background music and paging systems.

• Multi-zone commercial audio installations.

• Systems requiring integrated DSP and network-based control.

• Installations requiring multiple high-output amplifier channels.

Included Accessories:

• Two rack ears.

• Four adhesive rubber feet.

• IEC power cable.

• Euroblock analogue input connectors.

• Euroblock GPIO connector.

• Euroblock loudspeaker output connectors.

Package contents should be confirmed with the supplier for the specific unit being sold.

Accessories (Not Included):

• Compatible Ashly WR-series remote volume controller.

• External loudspeakers.

• Loudspeaker cables.

• Additional audio cables and adaptors.

• Ethernet cables and external network equipment, where required.

• External control equipment, where required.

• Additional rack accessories not supplied with the amplifier.

Size:

• Width: Approximately 483mm

• Height: Approximately 89mm

• Depth: Approximately 320mm

• Rack format: 19-inch rackmount, 2U high.

Dimensions are converted from the published measurements of approximately 19 × 12.6 × 3.5 inches.

Weight:

• Net weight: Approximately 7.5kg

• Shipping weight: Not verified.

The net weight is based on published product specifications.

Electrical/Thermal:

• AC input: 100–240V AC, 50–60Hz.

• Typical power consumption: Approximately 1,100W.

• Standby consumption: Less than 0.5W.

• Thermal dissipation at one-eighth rated output into 2Ω: Approximately 436BTU/hour.

• Cooling: Variable-speed fan cooling.

• Operating temperature: 0–40°C.

• Installation: Maintain adequate ventilation and ensure rack installation does not obstruct the cooling airflow.

• Protection: Short circuit, output DC, undervoltage, temperature and overload protection.