20% Off

Ashly FX Series FX750.4 4-Channel 750W Class D Power Amplifier with DSP

SKU: ASFX7504120V MFR: FX750.4-120V-U
Earn VIP Reward Points

Key Features

  • Experience high power output with 750W per channel, perfect for demanding audio setups.
  • Achieve pristine audio fidelity with this power amplifier's ultra-low distortion performance.
  • Rely on this power amplifier's robust protection circuits, ensuring reliable performance always.
  • Customize your sound with built-in DSP, offering versatile input, zone, and speaker processing.
  • Enjoy flexible input/output options, including Lo-Z and Hi-Z, for diverse audio configurations.
  • Maintain optimal cooling efficiency with its design, ensuring consistent performance for live sound.
See More Product Details
Special Order?Estimated to Ship: 08/13/2025
Free Shipping

See Options

Qty
1

Protect your gear with Adorama Protect.* Learn more

2 Year

$179.99

3 Year

$249.99

5 Year

$489.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Ashly FX Series Specifications

  • Channels

    4x Lo-Z / 2x Hi-Z

  • Output power

    @ 2Ohm 4x 750 W (SE)
    @ 4Ohm 4x 750 W (SE), 1x 1500 W (BTL)
    @ 8Ohm 4x 375 W (SE), 1x 1500 W (BTL)

  • Output power @ 25V

    4x 320 W

  • Output power @ 70V/100V

    2x 1500 W (BTL)

  • Total System Power

    3000 W

  • DSP

    4 Input x 2 or 4 Outputs: Input, Zone, Output & Speaker Processing, plus General settings

  • Networking

    Browser-based UI Software with Ethernet & Wi-Fi connectivity

  • Power Consumption

    1100 W

  • Output Circuitry

    Class D - full bandwidth PWM modulator with ultra-low distortion

  • Output Voltage

    85 Vp / 170 Vpp (unloaded) / Bridged 170 Vp / 3 40 Vpp (unloaded)

  • Signal To Noise-Ratio

    > 108 dB (A-weighted, 20 Hz - 20 kHz, 8 Ohm load)

  • THD+N (typical)

    < 0.05% (20 Hz - 20 kHz, 8 Ohm load, 3 dB below rated power)

  • Frequency Response

    20 Hz - 20 kHz (+/- 0.5 dB, 8 Ohm load, 3 dB below rated power)

  • Protection Circuits

    Short circuit, DC, Under voltage, Temperature and Overload protection

  • Power Supply

    Universal mains switch mode power supply with Power Factor Correction (PFC) and standby converter

  • Operating temperature

    32 - 104 Degree F (0 - 40 Degree C)

  • Operating Voltage / Frequency

    Universal Mains, 100V - 240V, 50Hz - 60Hz

  • Standby Consumption

    < 0.5 W

  • Power Ratings

    1 % THD @ 120 Vac and 230 Vac

  • Dimensions

    19 x 3.5 x 12.6" (89 x 482.5 x 320mm)

  • Weight

    16.5 lbs (7.5kg)

  • UPC Code

    801128005232

About Ashly FX Series

Make your audio experience exceptional with the FX Series FX750.4 4-Channel 750W Class D Power Amplifier with DSP. This high-performance amplifier is the result of Ashly's years of expertise in creating compact Class D designs, now enhanced with a state-of-the-art DSP engine and user-friendly software UI.

The FX Series FX750.4 is designed for seamless networking, offering both Ethernet and built-in Wi-Fi hotspot connectivity. This eliminates the need for a network router, simplifying your setup and saving you time and money.

This multi-purpose installation DSP-equipped amplifier is a part of the FX series, renowned for their built-in Wireless-Access-Point (WAP) for easy connection and configuration via Wi-Fi. The intuitive web-based software UI makes it a breeze to operate, even for beginners.

The FX Series FX750.4 comes in two configurations: 1/2 Rack Units (RU) for compact spaces, and the 2 RU FX 500.2 & FX500.4 for larger setups. Despite their power, all FX models are lightweight, with the 2,000W FX 500.4 weighing only 16.5 lbs.

The FX Series FX750.4 is more than just an amplifier. It houses a powerful DSP engine that can be configured to suit a wide range of tasks. From processing input sources to fine-tuning the sound of any speaker, this amplifier has it all. It can route into Zones A-D and then into Outputs (2 or 4 depending on the number of amplifier channels).

The 4-channel DSP configuration includes input processing, zone processing, output processing, speaker processing, and device settings. This makes the FX Series FX750.4 versatile enough for a variety of applications, including multi-zone music distribution for retail and restaurants, noise masking for offices and medical facilities, and media playback for hotel lobbies, retail, and museum kiosks.

The FX Series FX750.4's DSP engine provides a rich selection of functions for optimizing your system. The intuitive software UI offers an easy workflow and access to advanced functions. You can create, save, and load speaker presets to accommodate virtually any loudspeaker.

The FX Series FX750.4 also offers wireless access, allowing you to control it from any browser-enabled device. You can connect using the Ethernet port or built-in Wi-Fi, making remote service and troubleshooting easier.

The amplifier's multi-mode operation with switchable Low Z (4/8 Ohms) or Hi Z (25/70/100V) can be selected in software, allowing you to mix and match speaker types as needed. The SPDIF Digital I/O may be used to connect other compatible equipment or to bridge two FX amplifiers and digitally expand the system.

In conclusion, the FX Series FX750.4 4-Channel 750W Class D Power Amplifier with DSP is a smart, comprehensive package that offers more in terms of power, flexibility, and user-friendly operation.

Ashly FX Series Features

  • Low (2/4/8 Ohm) or Hi Impedance (70/100V) operation, selectable in software
  • Balanced Mic/Line inputs on removable Euroblock connectors, plus unbalanced RCA inputs
  • 2-channel SPDIF Digital IO
  • Front panel status LEDs for amp, Input, output & network
  • Networkable via Ethernet or built-in Wi-Fi
  • Built-in advanced DSP on all inputs & outputs, including: Sensitivity, Routing, Gain, PEQ, Compressor, Limiter, FIR Filters, X-Over, Polarity & Delay
  • Browser-based UI accessed via PC or mobile device. No software to install
  • Auto/Manual Power Saver Mode (sleep/standby), adjustable in Software
  • Customized Speaker Presets made be created, saved & loaded for each output channel
  • Addressable GPIO, Standby/Mute & VC remote ports. VC assignable per channel via software
  • Highly efficient Class D and lightweight

Warranty Information

This product has a limited warranty of 60 months for parts and 60 months for labor.

Product Documents

User Manual

Key Features

  • Experience high power output with 750W per channel, perfect for demanding audio setups.
  • Achieve pristine audio fidelity with this power amplifier's ultra-low distortion performance.
  • Rely on this power amplifier's robust protection circuits, ensuring reliable performance always.
  • Customize your sound with built-in DSP, offering versatile input, zone, and speaker processing.
  • Enjoy flexible input/output options, including Lo-Z and Hi-Z, for diverse audio configurations.
  • Maintain optimal cooling efficiency with its design, ensuring consistent performance for live sound.

What's in the box:

  • Ashly FX Series FX750.4 4-Channel 750W Class D Power Amplifier
  • Pair of Rack Ears
  • IEC Power Cord
  • 2x 6-Pin Input Block Connectors
  • 8-Pin GPIO Block Connector
  • 2x 4-Pin Speaker Output Block Connector
  • 4x Adhesive Rubber Feet
  • Ashly 5 Year Limited Warranty