HD4 Home Music System w/Bluetooth aptX-HD — Audioengine Skip to Content

HD4 Home Music System w/Bluetooth aptX-HD

Fill any room with amazing stereo sound. The HD4 can connect either wired or wirelessly, so you can play your music from your computer, phone, tablet, even your turntable or cassette player. Use any music app or device you like. The HD4 also has a headphone amplifier, so you can listen to your music privately with crystal clear sound.

Pro Tip Connect your HD4 to a desktop via Bluetooth or USB for improved audio. This connection bypasses the lower quality audio parts in your computer, allowing the HD4's built-in DAC to refine the sound.
Connection Types:
Product Dimensions
9"H x 5.5"w x 6.5"D

$399

Fast & Free Shipping!

Frequently bought together

+
+
HD4 Home Music System w/Bluetooth aptX-HD
$399
DS2M Desktop Stands
$45
S8 Powered Subwoofer
$349

Frequently bought together

HD4 Home Music System w/Bluetooth aptX-HD
$399
DS2M Desktop Stands
$45
S8 Powered Subwoofer
$349
10-second checkout with Amazon
Free ground shipping
We pay sales tax, if applicable
30-day audition
3-year warranty

Best Use:

  • In your workspace
  • In the living room
  • Ideal for:

  • The Audiophile
  • The Old School Music Lover
  • The Budget-Conscious
  • The Perfect Harmony of Modern Design and Dynamic Sound

    Designed for smaller spaces, the Audioengine HD4 provides rich and vibrant audio reproduction that smaller systems often lack. The HD4 combines the power of the larger HD6 with the convenience of the smaller HD3. The system is housed in hand-built, real-wood-veneer cabinets for a modern and stylish look. You could call the HD4 eye and ear candy.

    Everything You Want in a Music System, Without the Cords

    The HD4 gives you the choice of connecting via USB, analog, or Bluetooth aptX-HD from your phone, tablet or computer. Bluetooth aptX-HD gives you CD-like quality sound and extended-range wireless that connects quickly and easily. Enjoy all of your music services, tune into your favorite podcast, or listen to anything and everything from your personal music library.

    Spoiler Alert: You're Going to Love Them

    • Quick and easy setup
    • No network setup, no passwords, no hassle
    • Versatile playback in any room, from any app or device
    • High-fidelity stereo sound for desktops and small spaces
    • Modern, compact design that fits in and fills up any room with sound
    • Built-in magnetic (and easy to remove) speaker grilles
    • Low-latency Bluetooth aptX-HD, extended-range wireless streaming so you get crystal clear sound
    • Analog input for easy turntable connection
    • Aramid fiber woofers and silk dome tweeters maintain the integrity of the sound
    • Built-in power amps wrapped in precision tuned, hand-built and finished wood-veneer cabinets

    The HD4 Leaves You Plenty of Room to Groove

    Good news! You don’t have to sacrifice sound quality when you’ve got limited space. Designed to take on space limitations, the HD4 is the perfect choice when your surface area is minimal and exceptional performance is a priority. As stylish as they are compact, the HD4 will easily fit in any small space and fit in with any style of decor.

    But the HD4 is more than just a pretty face. This system provides brilliant highs and thumping lows. It’s the difference between listening to your music and experiencing it.

    HD4 Home Music System
    HD4 left speaker - front view
    HD4 left speaker - rear panel
    Volume
    Headphone out
    Bluetooth pairing indicator
    Bluetooth antenna
    Stereo mini-jack input
    Stereo RCA inputs & outputs
    USB input
    Out to right (passive) speaker
    Power switch
    AC power inlet

    Tech Specs

    Type
    Powered Bluetooth aptX HD speaker system
    Amplifier Type
    AB
    Power Output
    120 W peak power total (30 W RMS / 60 W peak per channel), AES
    Drivers
    4"" aramid fiber woofers 0.75"" silk dome tweeters

    What's in the box

    1
    HD4 Home Music System w/Bluetooth aptX-HD powered (left) speaker
    1
    HD4 Home Music System w/Bluetooth aptX-HD passive (right) speaker
    1
    Antenna
    1
    Quality Gold Plated Banana Plugs
    1
    AC power cord
    1
    USB cable
    1
    Mini-jack audio cable
    1
    RCA audio cable
    2
    Microfiber speaker bag
    2
    Microfiber cable bag
    1
    Setup guide

    Questions & answers about the HD4 Home Music System w/Bluetooth aptX-HD

    1. Turn Off and Unplug:

    • Make sure your system is turned off and unplugged.

    2. Dust the Surfaces:

    • Use a soft, dry cloth to wipe away dust.
    • For hard-to-reach places, use a soft brush or a can of compressed air.

    3. Wipe Down the Exterior:

    • We do not recommend using any solvents
    • If cleaning off stains or build-up is necessary, we recommend doing so with a very small amount of mild cleaning solution applied only to the affected area, followed by quickly wiping the area dry completely. 
    • Any scoured pads or objects like a 'magic eraser' too easily run the risk of removing sealers and top coats of the painted finish that can leave a clearly visible change in the uniformity of the paint/finish

    4. Clean the Speaker Grills:

    • The speaker grills can be gently cleaned with a vacuum, preferably using a soft bush attachment.
    • A lint roller can also be used.

    5. Clean Buttons and Knobs:

    • A dry cloth is recommend for cleaning any knobs, buttons or other surfaces
    • Be careful not to let water get into any gaps.

    6. Clean Ports and Connections:

    • Use compressed air to blow out dust from ports and connections.

    7. Let Everything Dry:

    • Make sure everything is completely dry before plugging back in and turning on.

    8. Regular Cleaning:

    • Dust your system regularly to keep it in good shape.

    By following these steps, you can keep your Audioengine system clean and working well.

    The size of the speakers are 9"H x 5.5"w x 6.5"D each

    HD4 is an all-in-one system with no extra components needed except your phone or computer. Simply place the speakers where you want them and connect the power supply. Hook up the included speaker wire from the powered left speaker to the right passive speaker. Then connect your music with the supplied cables - or go wireless - and that's it.

    The HD4 speakers do include detachable magnetic grills. The grills have thin rubber pads to prevent marks or damage to the finish or the cabinet, so your HD4s will keep looking great even if you like to remove / replace them frequently!

    Absolutely! The HD4 offers wired or wireless connections to any phone or tablet using the aux audio input or Bluetooth aptX-HD. For wired connections to newer devices without a headphone jack, you'll need the correct USB-A adapter cable to connect from your tablet to the USB input on the HD4. These are generally available from the manufacturer of your tablet/smartphone, local electronic stores, or even online retailers.

    Yes, you can. The HD4 speakers use a switching power supply so it will automatically convert to the different voltage. The power cable is also detachable which makes it convenient to replace the AC plug with a different type if you don’t want to use an adapter plug.

    Sure, for HD4 you will need an inverter that can supply about 50-60 watts.

    While the HD4 has a fantastic 24-bit DAC, you can always run your own external DAC to the speakers by connecting to the analog inputs.

    Some turntables will need a preamp before being connected and others may have one built-in. Check the turntable manufacturer’s website or user manual.

    Yes! All Audioengine powered speakers have multiple audio inputs. Both analog inputs (3.5mm and RCA) are active, so you can connect multiple audio sources at the same time. 

     

    The digital inputs are slightly different, though. Both the Bluetooth and USB inputs share an internal DAC. In this case, the Bluetooth input will take precedence over the USB connection. This means that the Bluetooth input will mute the USB input's audio playback. Simply disconnect your Bluetooth device from the HD4 speakers to resume playback from your USB source device.

    You should be able to use multiple sources with the HD4s just fine. The analog inputs on the HD4 are always active. They will play at the same time as the Bluetooth or USB input. Bluetooth and USB share the DAC though, so you can only listen to one at a time, and Bluetooth takes priority. If you're using USB for example, and start using Bluetooth, USB will mute and Bluetooth will take over. If you pause or disconnect from Bluetooth the speakers will automatically switch back to USB after a few seconds.

    Compare Us to the Competition

    Description
    Amazon Customer Rating
    Pricing
    Finish
    Connectivity Technology
    Item Dimensions
    Item Dimensions
    Item Weight
    Audioengine A2+ Plus Wireless Speaker Bluetooth | Desktop Monitor Speakers | Home Music System aptX Bluetooth, 60W Powered Bookshelf Stereo Speakers | AUX Audio, USB, RCA Inputs,16-bit DAC (Black)
    CSR8670 Internal Bluetooth Receiver
    60 W peak total
    16 bit, up to 48 kHz
    aptX, AAC, SBC
    2.75”
    Finish Types
    Finish Types
    CSR8670 Internal Bluetooth Receiver
    60 W peak total
    16 bit, up to 48 kHz
    aptX, AAC, SBC
    2.75”
    Finish Types
    Finish Types
    CSR8670 Internal Bluetooth Receiver
    60 W peak total
    16 bit, up to 48 kHz
    aptX, AAC, SBC
    2.75”
    Finish Types

    Fearless
    Shopping

      10-second checkout with Amazon or Paypal
    • Fast & free shipping
    • We pay sales tax, if applicable
    • 30-day audition & easy returns
    • 3-year warranty & superior support
    • Guaranteed smiles

    Which Audioengine Speaker System is Right for You?

    Built-In DAC
    Built-In Power Amp
    USB Input
    Bluetooth
    Wi-Fi
    Woofer Size
    Tweeter Size
    Sold In Pairs
    Wiring Type
    Connection Types
    Ideal Listening Space
    Base Port
    HD4 Home Music System w/Bluetooth aptX-HD
    120W peak total
    24 bit (upsampled), up to 48 kHz
    aptX HD, aptX with very low latency, aptX, AAC, SBC
    N/A
    4"
    0.75"
    Yes
    • Wired
    • Wireless
    • 3.5mm analog
    • Bluetooth
    • RCA analog
    • USB
    • Desktop
    • Room
    • Front Ported
    HD5 Home Music System w/ Bluetooth aptX-HD
    150W peak total
    aptX HD, aptX with very low latency, aptX, AAC, SBC
    N/A
    5"
    0.75"
    Yes
    • Wired
    • Wireless
    • 3.5mm analog
    • Bluetooth
    • RCA analog
    • Desktop
    • Room
    • Front Ported
    HD3 Home Music System w/Bluetooth aptX-HD
    60W peak total
    24 bit (upsampled), up to 48 kHz
    AAC, SBC, aptX, aptX HD
    N/A
    2.75"
    0.75"
    Yes
    • Wired
    • Wireless
    • 3.5mm analog
    • Bluetooth
    • RCA analog
    • USB
    • Desktop
    • Room
    • Front Ported

    Founded in Austin, Texas, the live music capital of the world.
    Shocking, huh?

    How a pair of music-loving tech veterans set out to create reasonably priced speakers that are good-looking, easy to use, and, most important, sound amazing. Or what you might call “the perfect pair of speakers.”
    Learn more
    HD3 Wireless Speakers

    Listen for 30 days

    Love it, or return it for a full refund
    30-day trial is only available for product purchased directly online from the Audioengine store.
    Read more

    Customers also bought

    HD6 Home Music System w/Bluetooth aptX-HD

    $699

    Special Offer
    Placeholder Title
    Placeholder Text
    Compare
    _0008s_0003_S8-Wireless-SUBWOOFER-WHITE_FRONT

    S8 Powered Subwoofer

    $349

    Special Offer
    Placeholder Title
    Placeholder Text
    Compare

    HD3 Home Music System w/Bluetooth aptX-HD

    $349

    Special Offer
    Placeholder Title
    Placeholder Text
    Compare
    chevron-down