Audioengine HD4 Wireless Speakers (Pair)

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Enjoy premium sound quality from the Bluetooth-enabled, stereo AudioEngine HD4s.

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Specifications of the Audioengine HD4 Wireless Speakers (Pair)

  • Weight (Kg) 7.300000
  • Brand Audioengine
  • Warranty 3 years
  • Width 14cm
  • Height 23cm
  • Depth 16.5cm
  • Frequency Response 60 Hz-22 kHz ±1.5 dB
  • Line In 3.5 mm stereo mini-jack, USB, RCA L/R
  • Line Out RCA variable line-out, 3.5 mm mini-jack headphone out
  • Input Bit Depth 24 bit (upsampled), up to 48 kHz
  • Connectivity aptX HD Bluetooth 5.0
  • In the box HD4 Speaker pair, Bluetooth Antenna, 2m 16AWG Speaker Cable, AC cord, 1.5m USB cable, 1.5m mini-jack cable

At Smart Home Sounds we pride ourselves on customer satisfaction and would like our customers to be 100% happy with their purchase.

We offer 30-day hassle-free returns and personalised service from real-life people. If an item doesn't meet your expectations, simply return your item to us in its original condition and packaging within 30 days for a full refund or exchange. 


  • For hygiene reasons, we are unable to give refunds on in-ear headphones if used
  • Video games cannot be retuned if the seal is broken (unless faulty)

Want to return a faulty or damaged product? No worries - Smart Home Sounds will arrange a collection or exchange should this be necessary.

Full terms & conditions

Enjoy your favourite music at home

AudioEngine HD4 Stereo, Bluetooth Speakers

AudioEngine HD4 Stereo, Bluetooth Speakers
Enjoy a bolder sound and elevate your home office with the AudioEngine HD4 stereo, Bluetooth speakers. Offering both wired and wireless connection, the HD4s are a true all-rounder and will make the perfect addition to your desk, bookshelf or PC setup. 
  • aptX HD Bluetooth 5.0 for hi-res audio quality

  • 3.5mm Jack, RCA stereo, micro USB audio inputs
  • Subwoofer output in the form of RCA connection points
  • Separated, hi-fidelity stereo sound

  • Available in a range of colours with stylish wood finish

  • USB DAC 
AudioEngine HD4 Stereo, Bluetooth Speakers

Hi-Res Audio

Hi-Fidelity Stereo Sound

Hi-Fidelity Stereo Sound

Building on AudioEngines legacy HD-series, the HD4s offer the perfect wireless solution for versatile, high-fidelity audio. Sporting a 4” woofer and ¾” tweeter in each speaker, you’ll enjoy a strong low end and detailed high-mid performance. Enjoy 24 bit (upsampled) resolution up to 48kHz using the HD4’s USB Input.

Inspired by studio monitor speakers and featuring built-in 120W analog power amplifiers, the AudioEngine HD4s don’t over-simulate bass response and give you a pure, clean representation of the audio at hand. With the RCA outputs on the back of the HD4, you’re able to connect a separate Subwoofer for an increased bass output if desired.

Hi-Fidelity Stereo Sound

Access music wirelessly

aptX HD Bluetooth Streaming

aptX HD Bluetooth Streaming

With aptX HD Bluetooth 5.0 courtesy of the antenna on the back of the left HD4 speaker, you’ll be able to stream your favourite content straight from your phone, tablet or PC to the HD4s in brilliant hi-res quality.

Pairing with the AudioEngine HD4 takes seconds using the built-in Bluetooth pairing button. The Bluetooth pairing light will flash when in pairing mode, then turn solid to confirm that a Bluetooth connection has been made.

aptX HD Bluetooth Streaming

Stylish and Timeless

Premium Design

Premium Design

Retaining a timeless profile, the HD4s are the perfect choice for your desk or bookshelf. Available in both black and white; you’re sure to find the perfect fit for your space in a stylish wood finish. They’re also equipped with removable, protective speaker grilles.

The left speaker face houses volume and power controls, as well as the 3.5mm headphone jack and Bluetooth pairing button. To the rear of the left speaker, you’ll find important connections such as Bluetooth reception antenna, right speaker output, RCA stereo input, 3.5mm audio input for mobile devices and micro USB input for connection to a PC. You’ll also be able to connect a separate subwoofer via the RCA outputs.

Premium Design

AudioEngine HD4 Pros & Cons

AudioEngine HD4 Pros & Cons

AudioEngine HD4 Pros

+ apt-X HD 5.0 Bluetooth connectivity for hi-res music streaming

+ 4” aramid fibre woofer for more pronounced bass response.

+ A range of wired connection options allowing for multiple sources to be connected

+ Sub connection in the form of an RCA output possible

+ Sleek black, white and walnut wood finishes

+ True stereo sound

AudioEngine HD4 Cons

- Only Wired & Bluetooth connectivity available, no wifi-based streaming options like Airplay 2



Q. How do the HD4s compare to the AudioEngine HD3s?
A. The AudioEngine HD4s have a larger 4” aramid fibre woofer in each speaker giving them a more pronounced bass response. They also feature a more powerful 120W class AB analog amplifier. For more on the HD3s, please click here.

Q. What is the antenna for?
A. The antenna included with the HD4s allow these traditional HiFi speakers to pick up a Bluetooth signal and connect wirelessly with your chosen device.

Q. Do the HD4s have an auto-sleep mode?
A. Yes, the HD4s are equipped with a power-saving circuit to turn off the speakers’ final stage amp. This means you can keep the speakers on all the time.

The perfect addition to your home office set up, offering a range of wired and Bluetooth connection options.

The perfect addition to your home office set up, offering a range of wired and Bluetooth connection options.