Name: HD4 Home Music System w/Bluetooth aptX-HD
SKU: B09H9L93WF-4
Availability: InStock

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 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

Power Output

30W RMS per channel (measured in compliance with 16 C.F.R. § 432.3) Peak Power Output: 60W per channel (AES) Total Peak Power Output: 120W (AES)

Drivers

4″” aramid fiber woofers 0.75″” silk dome tweeters

What’s in the box

HD4 Home Music System w/Bluetooth aptX-HD powered (left) speaker

HD4 Home Music System w/Bluetooth aptX-HD passive (right) speaker

Antenna

Quality Gold Plated Banana Plugs

AC power cord

USB cable

Mini-jack audio cable

RCA audio cable

Microfiber speaker bag

Microfiber cable bag

Setup guide

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

I’m experiencing issues with my speakers when connected via USB on a Windows 10/Windows 11 operating system. What could be causing this, and how can I fix it?
- If you are experiencing issues with your speakers when connected via USB on a Windows 10+ operating system, it might be due to the DCH (Declarative, Componentized, Hardware Support Apps) drivers. While DCH drivers offer many benefits, they can sometimes cause compatibility issues with USB audio devices, resulting in problems such as delays when sound starts, poor audio quality, or the speakers not being recognized properly.
  
  Solution: To resolve these issues, we recommend switching from DCH drivers to non-DCH (standard) drivers. Here’s a step-by-step guide to help you do that:
  1. Uninstall the Current DCH Drivers:
    - Open the Device Manager on your PC.
    - Locate your audio device under “Sound, video, and game controllers.”
    - Right-click on the device and select “Uninstall device.”
    - Ensure you check the option to delete the driver software for this device to completely remove the DCH drivers.
  2. Download the Non-DCH Drivers:
    - Visit the support website of your motherboard or computer manufacturer.
    - Navigate to the driver download section and find the non-DCH Realtek (or appropriate) audio drivers for your system.
  3. Install the Non-DCH Drivers:
    - Download and run the installer for the non-DCH drivers.
    - Follow the on-screen instructions to complete the installation process.
  4. Restart Your PC:
    - After installing the non-DCH drivers, restart your computer to apply the changes.
  By switching to non-DCH drivers, the compatibility issues with your USB speakers should be resolved, allowing you to enjoy optimal audio performance.
  
  Additional Tips
  - Check for Firmware Updates: Ensure your speakers have the latest firmware installed. Visit the manufacturer’s website for firmware updates that may improve compatibility and performance.
  - USB Ports: Try connecting your speakers to a different USB port to see if the issue persists.
  - Contact Support: If you continue to experience issues, please contact our customer support team. Provide details about your operating system, motherboard model, and the specific problems you are encountering.
  We hope this helps you resolve any issues and enhances your experience with our speakers. If you have further questions or need assistance, don’t hesitate to reach out to our support team.
How to Clean Your Audioengine Home Music System
- 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.
HD4 Size: What are the dimensions of the HD4?
- The size of the speakers are 9″H x 5.5″w x 6.5″D each
How easy is it to set up HD4?
- 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.
Does HD4 come with speaker grills?
- 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!
Can I use the HD4 with tablets or smartphones like Samsung Galaxy or Microsoft Surface?
- 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.
Can I take my Audioengine HD4 speakers to another country with a different voltage?
- 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.
Can I use an inverter with my HD4 speakers?
- Sure, for HD4 you will need an inverter that can supply about 50-60 watts.
The HD4 has a built in USB digital-to-analog converter (DAC), but can I also use a different DAC?
- 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.
If I connect my turntable to the HD4 will it be necessary to purchase a phono preamp or can I simply connect the turntable directly to the HD4 input?
- 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.
Is it possible to connect multiple sources to the HD4 simultaneously?
- 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.
Can I connect multiple sources to the HD4? Can I stream via Bluetooth and use the USB input at the same time?
- 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.

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″
1
Wired Wireless
3.5mm analog Bluetooth RCA analog USB
Desktop Room
Front Ported

HD5 Home Music System w/ Bluetooth aptX-HD (Open Box)
150W peak total
aptX HD, aptX with very low latency, aptX, AAC, SBC
N/A
5″
0.75″
1
Wired Wireless
3.5mm analog Bluetooth RCA analog
Desktop Room
Rear Ported

HD3 Wireless Speaker System (Open Box)
60W peak total
24 bit (upsampled), up to 48 kHz
AAC, SBC, aptX, aptX HD
N/A
2.75″
0.75″
1
Wired
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