Class D 500W RMS Amplifier Panel for Multiway Speakers

Add integrated amplification and tone control to a compatible multiway speaker enclosure with this 500W RMS Class D panel. Designed for professional mid/high and full-range speaker projects, it offers a mono amplifier, balanced input and three-band equalizer in a cabinet-mounting format.

Not suitable for subwoofer enclosures. Check product availability and preparation lead time before ordering; no specific dispatch time was supplied.

Key Features

• Listed output of 500W RMS at 4 ohms or 250W at 8 ohms.
• Mono Class D amplification for compatible multiway speaker systems.
• Balanced 1/4-inch input with independent volume control.
• Three-band EQ for bass, midrange and treble, with a listed 15dB adjustment range.
• Speakon output for a passive companion speaker.
• Automatic 110V/220V power selection, according to the supplied description.

Speaker Compatibility

Intended applications include compatible trapezoidal enclosures, stage monitors, side fills and line-array projects. Enclosure type alone does not establish compatibility. Two-way and three-way systems require suitable professional crossover networks for their drivers; the three-band EQ is not a crossover. This is one mono amplifier channel, not a separately amplified channel for each driver.

The minimum final load is 4 ohms. Do not operate below 4 ohms. For powered-plus-passive companion installations, have a qualified technician verify the combined impedance, wiring and power distribution before connection. Select drivers and operating levels according to the manufacturer's guidance rather than relying on wattage alone.

Listed Technical Specifications

• Amplifier class: D
• Channels: One mono channel
• Output: 500W RMS at 4 ohms; 250W at 8 ohms
• Power-rating reference: 1kHz sine-wave signal
• Frequency response: Listed as flat from 30Hz to 30kHz; tolerance unspecified.
• Distortion: Listed below 0.10% at 75% of maximum power.
• Signal-to-noise ratio: Source states greater than 95% without a standard dB value; confirm the correct specification with the manufacturer.
• Damping factor: Listed above 200 at 4 ohms.
• Subsonic filter: 30Hz cutoff
• Power supply: Automatic 110V/220V, as listed; verify the equipment label before connection.

These are supplied listing specifications, not independent test results. Class D does not establish a digital audio input or built-in digital-to-analog converter.

Controls, Connections and Size

• Illuminated power switch, operating LED and clip indicator.
• AC power inlet and protective fuse.
• Balanced 1/4-inch input with volume control.
• Speakon output for a passive companion speaker.
• Three-band equalizer.
• Listed panel dimensions, length x width x depth: 28.8 x 19.6 x 8cm.

Confirm the mounting cutout, clearance and ventilation requirements before modifying an enclosure. Panel dimensions are not packed shipping dimensions. This listing describes an amplifier panel/module; speaker drivers, enclosures, crossover networks, power cable and other accessories are not individually confirmed as included.

Installation and Care

• Have a qualified technician install the panel and verify speaker compatibility, grounding and wiring using the current manufacturer's manual.
• Confirm supply voltage, mains frequency and input-current requirements on the equipment label. Automatic dual voltage does not establish worldwide electrical compatibility.
• Use a properly rated electrical circuit. Audio output power is not the same as mains power consumption.
• Disconnect mains power before installation, wiring or servicing. Refer internal servicing to qualified personnel.
• Keep dry, maintain manufacturer-specified ventilation and do not assume outdoor weather resistance.
• Reduce signal level when clipping is indicated and use hearing-safe listening levels.

Manufacturer identity, exact model number and warranty terms were not supplied. No distortion-free operation, universal enclosure compatibility or protection against every type of speaker damage is guaranteed.