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Audioengine HD4 Wireless Powered Speakers Black

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The Audioengine HD4 is the smart choice in home speakers without being a “smart speaker.” Experience agenda-free audio and feel confident knowing you’re the only one doing the listening.

Audioengine HD4

Effortlessly fill any living space with the power of incredible, true stereo sound that brings your listening experience to life. An all-access pass to ALL of your music on any app or device, the HD4 offers wired or wireless connections including USB input from your computer, Bluetooth aptX-HD from your phone, or good old analog from that vintage turntable or prized tape deck.

The HD4 Speakers are constructed with custom Audioengine components: Aramid fibre woofers, silk tweeters, and built-in power amps wrapped in precision-tuned, hand-crafted cabinets.

Key Features:
- Premium speakers designed for desktops + smaller spaces
- High-end sound wrapped in hand-built wood cabinets
- Built-in stereo power amplifiers
- Extended-Range Wireless aptX Bluetooth
- USB Audio Input
- Dual Analogue Inputs
- External Subwoofer Output
- No network setup, no passwords, no hassle
- No buttons to push & inputs are always ready to go
- Aramid fibre woofers and silk tweeters
- Hand-built cabinets available in two beautiful finishes
- Detachable magnetic grilles included
- Supplied as a pair
- Optional DS2 Desktop Stands available

Made For Your Music

Inspired by the way you listen.

Rounding out Audioengine’s legacy HD-series, the HD4 wireless speakers offer versatile, high-fidelity audio ideal for smaller spaces. This is a premium-powered, two-speaker setup that offers excellent music reproduction and surrounds you with a sense of presence that most compact systems often miss.

Bringing home the high-performance technology inside our HD6 along with the convenience of our modestly-sized HD3, the HD4 is a perfect blend of the power you love to feel and the modern functionality you depend on. Thoughtfully wrapped in precision-tuned, hand-built wood-veneer cabinets.

Play Your Music Your Way

Connect to your music no matter where it lives.

An all-access pass to ALL of your music on any app or device, the HD4 system offers wired or wireless connections including USB input from your computer, Bluetooth aptX-HD from your phone, or good old analog from that vintage turntable or prized tape deck.

Featuring Bluetooth aptX-HD for premium, extended-range wireless that allows for quick and easy connection to stream your existing music services, tune into your favourite podcast or listen to those carefully curated playlists from your personal music library.

Your music, your way. Anywhere you want to listen. It’s that simple.

Bold Design That Fits In

Versatile, size-defying sound.

Designed to take on space limitations, the HD4 is the perfect upgrade where surfaces are minimal but performance and convenience can’t be compromised. As handsome as they are compact, the HD4 will easily fit in any small living space and blend in with any decor.

Purpose-built for versatility, the HD4’s modest design does little to prepare listeners for such expansive soundstage and crystal-clear imaging. The difference between listening to your music and hearing ALL of it...with more room for dancing.

Extended Wireless Range

Most Bluetooth implementations have a very limited range, typically within just one room. But with careful signal management circuitry and antenna tuning, Audioengine offers a superior solution that has up to 3 times the range of standard Bluetooth for multi-room use, with no degradation in audio quality. Audioengine Bluetooth products have very low latency when compared to most Bluetooth receivers, around 30ms.

Unique, Bespoke Design

Audioengine's built-in analogue power amplifiers sound incredible compared to lower-cost digital amps found in mass-produced brands.

Audioengine designs and manufactures their own speaker drivers and other critical components. In other words, the HD4 is not a box-built system with off-the-shelf parts, but includes custom-designed components constructed to their specifications. What they do not fabricate directly inside their factories they have made to their specific designs. Parts such as circuit boards, transformers, magnets, and wiring harnesses, for example.

The speaker cabinets, drivers, innovative bass port designs, amplifiers, and passive crossovers are all critically tuned together for each Audioengine model. This, in turn, makes for a much more efficient system that requires less power than passive speakers and a separate integrated amplifier or similar A/V components. Audioengine builds all this goodness into the left speaker cabinet to make it super-easy to connect your smartphone, tablet, computer, TV, network player or any other audio product.

Unlike most smaller computer speakers, Audioengine HD4 cabinets are constructed of 18mm-thick high-density fiberboard, rather than plastic. The HD4 system offers a whole new audio experience, guaranteed.

Amplifier & Driver Design

The amplifiers in powered Audioengine speakers are located in the left speaker and are a conservatively-rated class A/B analog monoblock design. This is a more traditional speaker/amplifier marriage which provides excellent quality audio and greater flexibility. All circuit boards for the power and preamp sections are vertically mounted for maximum mechanical shock protection.

Audioengine uses audiophile-quality, ferrofluid-cooled silk dome tweeters with neodymium magnets. Silk tweeters hold up well under high power and the edge-driven design gives very smooth response. The woofers are aramid fiber woven glass composite with rubber surrounds. Aramid fiber is obviously very strong, which means that the woofer retains its shape when being driven at high levels. The speaker materials and construction are robust enough to stand up to some serious thrashing, so speaker grills are not needed and they will sound and look great after many years of use.

About Audioengine

Audioengine has been changing the way people listen to music since 2005. We believe in the power of music and our passion is to inspire you to listen every day. Great sound, beautiful design and useful features.

More Information
Model Number HD4Wireless-Black
RRP 599.00



Amplifier type
Dual class A/B monolithic

Power output
120W peak power total (30W RMS / 60W peak per channel), AES

4″ Aramid fibre woofers, 3/4” silk dome tweeters

3.5mm stereo mini-jack, USB, RCA L/R, Bluetooth

Dual RCA variable line-out, 3.5mm mini-jack headphone output

Input voltages
110-240V 50/60Hz auto-switching

>95dB (typical A-weighted)

<0.05% at all power settings


Frequency response
60Hz-22kHz +/-1.5dB

Input impedance
5K ohms unbalanced

Input bit depth
up to 24 bits native

Input sample rate

Output current limiting, thermal over-temperature, power on/off transient protection



Connector type

USB device class
USB 1.1 or above

Internal D/A converter
PCM 5102

Input bit depth

Input sample rate



Internal D/A converter
PCM 5102

Bluetooth receiver type
Bluetooth 5.0

Supported codecs
aptX HD, aptX with very low latency, aptX, AAC, SBC

Wireless operation range
Up to 100ft (30m) typical

Input data rate
Determined by Bluetooth

Wireless latency
~30 milliseconds (ms)



Headphone amp type

Full-scale headphone output level
2.0V RMS

Output impedance
2 ohms

Recommended headphone impedance range
10 ohms to 10K ohms




Dimensions (each speaker HWD)
9″(23cm) x 5.5″ (14cm) x 6.5″ (16.5cm)

Weight (LEFT speaker powered)

Weight (RIGHT speaker passive)

Shipping weight
4.5kg/10lbs per pair

Shipping box dims (HWD)
15.5″ (39cm) x 20″ (51cm) x 13″ (33cm)



18mm thick MDF cabinets with real wood veneer
3/4″ (20mm) silk dome tweeters with neodymium magnets
4″ (101mm) aramid fibre woofers with advanced voice coils



- Black
- Walnut



Operating temperature: 32 degrees F to 95 degrees F
Non-operating temperature: -4 degrees F to 113 degrees F
Relative humidity: 5% to 95% non-condensing



1x HD4 Home Music System powered (left) speaker
1x HD4 Home Music System passive (right) speaker
1x Antenna
1x Speaker wire (16AWG), 3.75 meters (~12.3 ft)
1x AC power cord
1x USB cable, 1.5 meters (~4.9 ft)
1x Mini-jack audio cable, 2 meters (~6.5 ft)
1x RCA audio cable, 2 meters (~6.5 ft)
2x Cloth speaker bags
1x Cloth cable bag
1x Setup guide

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3 Years
All of our Audioengine products include a 3-year warranty.

If you experience any issues with this product please don't hesitate to contact us.
How much does delivery cost?
We offer free post on all orders over $29 to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
All change of mind returns must be in as new condition, in original packaging. We provide a generous 30-day change-of-mind guarantee on our products (unless otherwise stated). All change of mind returns must be in as new condition, in original packaging.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.