HD3 Wireless Speakers — Audioengine Skip to Content
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Tech Specs

HD3 Home Music System w/Bluetooth aptX-HD

The HD3 is a powerful music system that delivers exceptional stereo sound and is perfect for small rooms, desktops, or gaming setups. Choose between wired or wireless connections, like USB audio from your computer, aptX-HD Bluetooth from your phone, tablet or computer, or analog from your turntable or cassette player. And the HD3 features an exceptional headphone amplifier, so your music sounds great, no matter how you listen to it.

Pro Tip Achieve the best desktop audio with the HD3 by connecting via Bluetooth or USB. This bypasses your computer's standard quality audio components, instead using the HD3’s built-in DAC to enhance sound quality.

Technical Specifications

General Specifications

Type
Powered Bluetooth aptX HD speaker system

Amplifier Type
Class AB

Power Output
60 W peak power total (15 W RMS / 30 W peak per channel), AES

Drivers
2.75” aramid fiber woofers

0.75“ Silk dome tweeters

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

Outputs
RCA variable line-out, 3.5 mm mini-jack headphone out

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

SNR
>95 dB (typical A-weighted)

THD+N
Less than 0.05% at all power settings

Crosstalk
<50 dB

Frequency Response
65 Hz-22 kHz ±2.0 dB

Frequency Response w/ Bass Reduction Switch selected
100Hz-22kHz ±2.0dB (<5dB down)

Analog Input Impedance
N/A

Nominal Impedance
N/A

Input Impedance
5K ohms unbalanced

Crossover Frequency
N/A

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

Power Consumption
Idle: 10W

Standby Consumption
N/A

Phase
N/A

Recommended Amplifier Power
N/A

Battery Life
N/A

Battery Charge Time
N/A

Bluetooth Specifications

Internal D/A Converter
PCM 5102

Internal BT Receiver
N/A

Input Bit Depth
24 bit (padded)

Bluetooth Receiver Type
Bluetooth 5.0

Supported Codecs
aptX HD, aptX, AAC, SBC

Supported Bluetooth Profiles
N/A

Wireless Operation Range
Up to 100 ft (30 m) typical

Input Data Rate
Determined by Bluetooth

Wireless Latency
~30 milliseconds (ms)

Usb Specifications

Connector Type
Micro-USB

USB Device Class
USB 1.1 or above

Input Bit Depth
24 bit (padded)

Input Sample Rate
44.1 kHz/48 kHz

Headphone Amp Specifications

Headphone Amp Type
OPA2134

Full-scale Headphone Output Level
2.0 V RMS

Output Impedance
2 ohms

Recommended Headphone Impedance Level
10 ohms to 10K ohms

Optical Specifications

Internal D/A converter
N/A

Input Bit Depth
N/A

Sample Rate
N/A

Weights And Measures

Dimensions (HWD)
Each speaker - 7"(17.8 cm) x 4.25" (10.8 cm) x 5.5" (14 cm)

Weight
Left (powered) - 4 lb (1.8 kg)
Right (passive) - 3.4 lb (1.5 kg)

Total Shipping Weight
10 lb (4.6 kg)

Shipping Box Dimensions (LWH)
11.75" (30 cm) x 8.8" (22.5 cm) x 11.6" (29.5 cm)

Environmental Requirements

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

Materials And Construction

0.7" (18 mm) thick MDF cabinets with real wood veneer
0.75" (20 mm) silk dome tweeters with neodymium magnets
2.75" (70 mm) aramid fiber woofers with advanced voice coils

Cabinets

To minimize unwanted resonances and distortion, Audioengine cabinets have thick high-resin MDF walls with extensive internal bracing. Heavy internal sound-damping material is used to reduce unwanted sound reflections inside the cabinet. All cabinet edges are rounded which look great and reduce high-frequency diffraction effects on the front baffles. The HD3 cabinet contains tuned, front-port slots.

Furniture Grade Finishes

The HD3 cabinets are available in several handsome finishes, including a walnut veneer as well as satin black and glossy white paint, offering a wide choice for complementing room furnishings. Also included are detachable grills that add further aesthetic advantages as they are firmly held in place with hidden neodymium magnets for a clean look.

Custom Components

Audioengine designs and manufactures our own tweeters, woofers, and other critical components. In other words, these are not “box built” speakers with off-the-shelf parts but custom-designed to our specifications. What we do not fabricate directly in our factory we have made to our designs (parts such as transformers, magnets, and wiring harnesses, for example). The cabinets, drivers, bass port designs, amplifiers, and crossovers are all painstakingly tuned together for each Audioengine model. This, in turn, makes for a much more efficient system that requires much less power than passive speakers and a separate integrated amplifier or similar A/V components.

Based On Studio Monitor Designs

Studio monitor speakers are used by producers and engineers in recording and production studios. They are designed with a theoretical flat frequency response which allows the engineer to create a final mix in such a way that the recorded music will sound good on most other speakers. Although Audioengine speakers are not designed to be up-close “nearfield” studio monitors, we do carry over much of the same higher-end technology, components, and design philosophy for all Audioengine speaker systems.

Efficient Integrated Design

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. We build 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.

High-quality Bluetooth Audio

The Bluetooth built into the HD3 powered speakers features aptX HD coding which is an advanced Bluetooth audio codec with very impressive sound. And even if your phone or tablet does not have aptX HD, the HD3 Bluetooth solution is backwards-compatible with SBC and AAC codecs, as well as standard aptX, so you can wirelessly stream music from any Bluetooth-enabled device and still enjoy all your music. High-fidelity Bluetooth aptX HD that really works and sounds great. [RB - not a sentence?] Here is why:

Extended-range wireless.
Most Bluetooth implementations have very limited range, typically within just one room. But with careful signal management circuitry and antenna tuning, we offer a superior solution that has up to 3 times the range of standard Bluetooth for multi-room use, with no degradation in audio quality.

24 bit DAC
The HD3 Bluetooth receiver and USB input both utilize the PCM 5102 DAC, widely known for its low-noise and high-fidelity. The PCM 5102 is used as an upsampling DAC and will pad all bit depths to 24 bit, achieving a higher signal-to-noise ratio and lower noise floor. Due to the high signal-to-noise specs of the PCM 5102, the fact that digital signal is upsampled to 24 bit as well as the added benefit of onboard triple redundancy power source conversion and filtering the HD3 Bluetooth implementation presents impressive low noise and low distortion characteristics with a noticeable improvement over other Bluetooth devices.

Hd3 Headphone Amplifier

The HD3 contains a high-performance headphone amplifier based on the OPA2134 low-noise opamp. This amp is able to provide low-impedance, high-fidelity audio and a 2-volt output which easily drives a wide range of headphones.

Amplifier 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 configuration 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.

Driver Designs

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 the woofer retains its shape when being driven at high levels.

Shielding

Both drivers are directly video shielded and allow the user to place the speakers within a few inches of a video monitor. This shielding also offers protection for hard-drive digital music players.

Quickstart Guide

HD3 Quick Setup

Step 1: Connect the speaker wire from the HD3 left (powered) speaker to the right (passive) speaker.

Step 2: Attach the wireless antenna to the HD3 rear panel.

Step 3: Insert the power cable into the HD3 rear panel and plug the other end into an AC power outlet.

Wireless Connection

Step 4: Turn on the HD3 power switch located on the rear panel.  HD3 will automatically go into Bluetooth "pair mode" and the Pair button on the HD3 rear panel should start flashing.

Step 5: On your device (phone, tablet, laptop, etc), turn on Bluetooth and go to Bluetooth preferences.

Step 6: Select "Audioengine HD3" to pair and connect.  The Pair indicator on the HD3 rear panel should be solid. Play your music and adjust volume levels on HD3 and your device.

Step 7: To add additional devices put HD3 back into pair mode by disconnecting HD3 from your device or by pressing and holding the Pair button on the HD3 front panel until the pair indicator starts flashing. HD3 can wirelessly connect to only one device at a time, however it will remember up to six different devices.

Wired Connection

Step 8: Connect one of the included audio cables to your music player (phone, tablet, computer, TV, etc) and the other end to an input on the HD3 rear panel.

Step 9: Play your music and adjust the volume on the speakers and your device to the desired listening levels.


For the full setup guide, download the attached PDF:
HD3 Quickstart Guide


HD3 Setup Video

Troubleshooting

HD3 Troubleshooting Tips

The following troubleshooting tips can help diagnose and correct most concerns with the HD3. We have attempted to make this list as comprehensive as possible, so some of these may not apply to your issue, but please go through each tip.

If the power indicator on the HD3 external power supply unit is not illuminated, try these tips:

  1. Make sure the AC power cord is connected to the power supply unit and to a working AC power outlet.
  2. Check that the cable at the other end of the power supply is correctly connected to the rear panel of the left speaker.

If the power supply light is on but you are experiencing an audio-related issue, try these tips:

    1. Verify that the volume/power control on the rear panel is not turned all the way down or powered off (we recommend setting the volume to at least the 10 o’clock position)
    2. Check that the volume level of your audio source components or devices is not set to minimum volume or powered off.
    3. Check speaker wire connections from the left (powered) speaker to the right (passive) speaker. Confirm this by removing the speaker wire from on each speaker and reconnecting.  Also check the speaker wire polarity by verifying that the wires are going to same terminals on both speakers.
    4. Check that the cables from your audio sources to the speakers are properly connected. Confirm this by unplugging the audio cables and then reconnecting.
    5. Decrease the volume of the input audio source and increase the volume of the speakers.
    6. Try using different audio input sources and/or devices to see if the problem follows.
    7. Try swapping your left and right speaker via the RCA left and right inputs to see if the issue remains in the same channel or follows the speaker.
    8. If you are using a computer with your HD3, make sure the volume is up on your media players, internet radio, master control, device volume, etc. and the balance control is centered.

If your input source has its own EQ, please make sure the low end is at a moderate level, as having too much bass can cause distortion.

  • If you are using a wireless adapter, preamp, or external DAC with these speakers, remove them (temporarily) and connect the audio input source directly to the speakers.
  • Move your speakers to a different location to see if something is causing interference in the current setup.  Something as simple as a wireless internet router, cordless or mobile phone, or halogen lamp near the speakers can cause interference.

 

HD3 troubleshooting tips - internal USB digital-to-analog converter
Try these tips if your computer is not recognizing the speaker through your computer’s USB input or the sound through USB isn’t functioning correctly.

If you are using a Windows computer, uninstall the USB driver from your computer.  Then disconnect the USB cable to remove the HD3 from your computer and plug it back in to allow the USB driver to re-install automatically.  You can find complete instructions from Microsoft on how to reinstall a plug-and-play device under Windows here.

If you are using a Mac, try a NVRAM/PRAM reset.  This resets the system configurations for some audio and video related items and can many times help clear up problems related to audio. See Apple’s support page for information on how to do this. Also, be sure to check the App store to see if there's a newer version of Mac OS you could be running.

HD3 troubleshooting tips - Bluetooth

  1. Verify that the HD3 is connected to power and that the front volume knob is turned clockwise past the detent position (you should feel a click).  If you haven’t already, power-cycle your speakers by switching them off and back on.
  2. If your HD3 is already connected to a device via Bluetooth, the Bluetooth pair light on the front panel of the left speaker will be on and solid (note that if your HD3 has been idle and not connected to a device for more than 2-5 minutes, the Pair light will automatically turn off).  Tap the Pair button and it will begin blinking (or pair to your HD3 using your source device, and the LED will go from off to on and solid).
  3. Try playing audio from more than one application on your phone/tablet, or computer.
  4. Check to make sure your source device (computer, tablet, phone, etc) is running the most up-to-date version of software available.
  5. Try disconnecting from and forgetting the HD3 through your device’s Bluetooth settings, and re-pairing to the HD3.
  6. Try using a different source device with your HD3 to see if the issue follows.  Also be sure to test your HD3 using the analog input as well.
  7. If possible, try your HD3 in a different location to see if something is causing an issue in the current setup.  Something as simple as a wireless internet router, cordless or mobile phone, or halogen lamp near the speakers may be causing interference in your setup.

FAQ's

You can do this using powered speakers like our A2+s, HD3s, HD4s, A5+s, and HD6s.  For this, you'll connect the W3 sender to the RCA output on the left speaker, using a 3.5mm stereo-mini to RCA "Y" cable.  Then connect the W3 Receiver to the input on your S8.  You can either use a 3.5mm stereo-mini to stereo-mini cable for this, or another 3.5mm stereo-mini to RCA "Y" cable; either will work fine.  Both W3 units will need to be powered from a USB port.  You can use USB AC power adapters, or if the powered speaker you're using is our A5+ Classic model, you can use the USB port on it's rear panel for the W3 sender. The same would apply to the S8 subwoofer if you have our current 'Gen II' model that has a USB port on the rear panel.

 

Absolutely!  Our speakers are safe to place sideways and, from our experience, sound great. When doing so, we recommend that you position each so the tweeters are facing outward.

The speakers we offer that are designed to have a remote control are the A5+ Classic, A5+ Wireless and HD6.

The following systems do NOT support a remote control:  512, A1, A1-MR, A2+, B2, HD3, HD4.

There can be only 1 active pairing at a time.

Yes!  As long as your speakers have an analog output (either RCA outputs or a 3.5mm stereo mini output), you can absolutely connect the S6 to your powered speakers.  With the exception of the B2, all of our powered speakers will have the outputs needed to connect the S6, this includes the original A2 and A5 models.

You can simply use RCA cables to connect the S6 to the A2+, HD3, HD4, A5+, A5+Wireless, and HD6 speaker models.

For the A1 and A1-MR speakers, you can use one side of your stereo RCA cables. Just use the left/white RCA cable, and leave the red RCA disconnected to prevent an accidental ground loop.

** Please note:  a 3.5mm/stereo mini cable will not work with the ‘Subwoofer’ output on the back of your A1/A1-MR speakers. **

No, there are no firmware updates or special drivers needed unless you own our A1-MR multi-room speakers or our B-Fi multi-room wireless streaming device.

If a firmware update is released for the A1-MR or the B-Fi, you will be notified of the update the next time you open the Audioengine Control App.  If an update is needed, simply click "update" on the DEVICES page next to the product that needs to have the firmware update applied.  The app will handle the rest of the process from there!

Standard plug-n-play drivers that are provided by your computer's OS are utilized when using the USB input on our A2+, HD3, and HD4 speaker models.

And all of our Bluetooth speakers/products are compatible with any device that supports Bluetooth, and the A2DP profile for streaming stereo audio. This includes most smartphones, tablets, and computers. For computers that don't include Bluetooth support out of the box, you can simply add a USB Bluetooth adapter.

                                          Applicable to our A2+, HD3, HD4, A5+, A5+Wireless, and HD6 speakers.

Start with power cycling your speakers by turning them off and then back on.  From there:

  1. Determine if the distortion is due to your source by disconnecting all source devices from the speakers.
  2. Please make sure all of your connector cables are in working order. Try different cables as well as a different source device.
  3. Please try using each input available (mini-jack, RCA, USB, as well as Bluetooth), one at a time, to see how the speakers react. If the distortion is unique to one speaker, when testing via RCA switch the RCA jacks (red to white and white to red) to see if the issue remains in the same channel.
  4. Make sure it is not a power issue by trying a power outlet that is on a different circuit.

If the issue persists, please click on the following link and then click on the dropdown to submit an email to our Support team:

Support Page

When doing so, please copy and paste the above troubleshooting steps along with the results of each and include this information when contacting us.

                                                           Applicable to our HD3 and HD4 speakers

Turn on the speakers using the power switch located on the rear panel.  The speakers will automatically go into Bluetooth "pair mode" and the Pair button on the front panel should start flashing.

  1. On your source device (phone, tablet, laptop, etc), turn on Bluetooth and go to Bluetooth preferences.
  2. Select "Audioengine HD3 (or HD4)" to pair and connect.  The Pair indicator on the front panel should be solid. Play your music and adjust the volume levels on the speakers and your device.

To add additional devices put the speakers back into pair mode by disconnecting them from your device or by pressing and holding the Pair button on the front panel until the pair indicator starts flashing.

Our speakers can wirelessly connect to only one device at a time, however it will remember up to six different devices.

                             Applicable to our A1, A2+Wireless, B2, A5+Wireless, and HD6 speaker models

Turn on the speakers using the power switch located on the rear panel.  The speakers will automatically go into Bluetooth "pair mode" and the Pair button on the back panel should start flashing.

  1. On your source device (phone, tablet, laptop, etc), turn on Bluetooth and go to Bluetooth preferences.
  2. Select "Audioengine (your speaker model)" from the list of available devices to pair and connect.  The Pair indicator on the back panel should now be solid. Play your music and adjust the volume levels on the speakers and your device.

To add additional devices put the speakers back into pair mode by disconnecting them from your device or by pressing and holding the Pair button until the pair indicator starts flashing.

Our speakers can wirelessly connect to only one device at a time, however it will remember up to six different devices.

 

Applicable to our A2+, HD3, and HD4 speaker models

All digital audio sources will ultimately need to be converted to analog to provide sound through any speaker system. The USB and Bluetooth inputs will pass the digital signal on to the speaker's internal digital-to-analog converter (DAC), while the RCA/3.5mm inputs are already analog and have been converted by the built-in DAC in your source. So it's a question of which DAC sounds best to you. We would recommend testing each input separately to see which one you prefer!

Applicable to our A1, A1-MR, A2+, HD3, HD4, A5+, and HD6 speaker models

If one of your speakers is not working (whether it be the left or right speaker), we would recommend the following troubleshooting steps:

Start by power cycling your speakers by turning them off and then back on.  From there:

  1. Check to make sure the speaker wire connecting the left and right speakers is connected according to proper polarity (Red to Gold, Black to Silver) on both ends.
  2. Please make sure all of your connector cables are in working order. Try different cables as well as a different source device.
  3. If you are using any other devices in line with these speakers, please temporarily remove them from your setup and connect the source directly to the speakers
  4. Please try using each available input, one at a time, to see how the speakers react. When testing via RCA swap the RCA jacks (red to white and white to red) to see if the issue remains in the same channel.

If the issue persists, please click on the following link and then click on the dropdown to submit an email to our Support team:

Support Page

When doing so, please copy and paste the above troubleshooting steps along with the results of each and include this information when contacting us.

Yes, you still need to connect the active/left speaker to the passive/right speaker via the included speaker wire. The passive right speaker has no power source of its own and relies on the amplified signal coming over the wire.

On the A2+ Wireless/HD3 models with an external power supply brick, first test it by plugging into wall power and observing the LED light on the brick to see if its solid, blinking, out. If it's blinking or out, the power supply is likely faulty.

If the light is solid, proceed to plugging into the speaker and observe the power supply brick LED once more. If it's blinking or out, there is likely an issue with the internal amp. Contact support if either has an issue.

Sure, for HD3 you will need an inverter that can supply about 50-60 watts.

Absolutely!  You can connect any Audioengine speaker with an analog output to any Sonos product that has the Line-In feature.  You can also connect any Audioengine passive speakers into an existing Sonos system using the Sonos Amp.

Absolutely! To do so:

  • Open the Alexa App on your smartphone or tablet (Apple link  |  Google Play Link)
  • Tap the “Devices” icon and select the Echo/Alexa device you want to connect to speakers
  • Select “Bluetooth Devices”
  • Select “Pair New Device”
  • Find your Audioengine wireless speaker on the list of available Bluetooth devices, and select it

Your Bluetooth connection works by projecting the sound from your phone. So, if your ringtone volume is on, that sound will come through Bluetooth too. This is a simple fix by changing the phone's ringtone settings to either vibrate or silent.

This sometimes happens when the speakers and turntable share the same surface. The vibrations from the speakers playing feedback into the turntables stylus, causing unwanted noise. The best way to mitigate this would be to place the speakers on a different surface. If that's not an option, we'd recommend trying out some isolation stands. For larger speakers like A5+ and HD6, the ones made by Isoacoustics work well.

Yes, you can. The HD3 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.

Yes! We incorporate all the relevant functions and features from Bluetooth 5.0 that apply to our products! These features include; extended range, low latency (so that video and audio sync properly), as well as higher level aptX-HD, aptX, and AAC codecs (with the exception of our 512 portable speaker which supports SBC only). Keep in mind that the capability of the source is what controls the Bluetooth experience.

All turntables require a phono preamp stage before connecting to Audioengine speakers. Many turntables have this built-in , while others do not and would require an external phono preamp. Check the turntable manufacturer’s website or user manual. Some turntables may even include Bluetooth, in which case you can pair and connect them to the speakers wirelessly!

If the left speaker is in an easy to reach location, you can certainly use the physical knob to set volume. If not though, it's perfectly fine to set the speakers to a good volume and then adjust from your source moving forward. Every setup is different, so some experimentation will be necessary to find your preferred settings.

No. The Bluetooth and USB inputs both share the internal DAC for processing, so you can only listen to one at a time, with Bluetooth taking priority. If you're using USB for example, and start using Bluetooth, the USB signal will cut and Bluetooth will take over. Depending on your source, if you pause or disconnect from Bluetooth the speakers may automatically switch back to USB after a few seconds.

Though overall latency can be affected by some external factors (including things like signal strength, how well the source device's manufacturer has implemented it's Bluetooth, and even simply from being physically further away from the speakers) Audioengine Bluetooth products have very low latency when compared to most Bluetooth receivers, 30ms or less.

Here are some tips you can use to minimize any latency issues you may run into with your Bluetooth setup:

1) Try restarting both your device as well as the speakers (by switching them off, and back on, with the power switch on the rear of the speakers).

2) Check to make sure your source device is running the most up to date version of software available.

3) Try disconnecting from and forgetting the your Bluetooth speaker or device through your source’s Bluetooth settings, and then re-pair to your Bluetooth speaker/device.

4) If you have multiple apps or windows open when the delay occurs, try closing all of the apps that are not currently in use.  The more multitasking your system is having to do, the greater the potential delay in audio when using Bluetooth -- this would apply to both your smart phone and computer.

5) When using your iPhone, we've found that resetting your network settings can help improve the overall functionality of Bluetooth with your device -- including the latency.

-Both analog (3.5mm mini-jack and RCA) inputs are "open" or active, so you can leave 2 audio sources plugged in at the same time.

-The USB (Optical for HD6) and the Bluetooth module share the same DAC (Digital to Analog Converter) If connected to both, the Bluetooth connection will take precedence. If you're using USB (Optical for HD6) for example, and start using Bluetooth, USB (Optical for HD6) will mute and Bluetooth will take over. If you pause or disconnect from Bluetooth the speakers will automatically switch back to USB (Optical for HD6) after a few seconds.

*Please note, if you have a digital (Bluetooth, USB or Optical) and or multiple analog sources connected and streaming you are able to hear the input sources if they play simultaneously.

Yes they do! They are equipped with a power-saving circuit that turns off the speaker's final stage amp. This idle mode activates right after you stop playing music. Due to this power-saving function, it's perfectly fine for the speakers to stay on all the time!

Audioengine speakers have a low end which will easily fill a room and rival floor standing speakers many times their size, but you can also connect a subwoofer (or connect Audioengine speakers to your sub's line-level output). You can add our W3 wireless adapter for a wireless subwoofer! It's also worth noting that the HD3 includes a bass cut switch, to help them blend even better with an external subwoofer.

Yes, there are multiple audio inputs on Audioengine powered speakers and both inputs are "open" or active so you can leave your audio sources connected at the same time.

Yes, an AC wall outlet near the HD3 is all you need to power the W3 or D2 wireless receiver. Simple.

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.

While the HD3 has a fantastic 24-bit DAC, you can always run your own external DAC to the speakers by connecting to the analog inputs.

Some computer headphone outputs have poor audio quality, so if this is your computer, try connecting from the USB port to your with HD3 or connect wirelessly via Bluetooth.

Our HD3's are 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. Next, connect the powered speaker to the right passive speaker using the included upgraded speaker wire with banana plug tips. Finally, plug in your music (cell phone, turntable, computer, laptop, etc.) with the supplied cables or via Bluetooth and you're ready to go!

Here is a quick video that can be used as a reference:

HD3 Setup Video

(Please note - there is no audio associated with the video.)

Setting up your Bluetooth turntable with your Bluetooth-ready Audioengine speakers/components should be simple! First, you would also need to make sure your Audioengine Bluetooth device is on, in pair mode (LED light flashing), and near the turntable. Next, you would need to use the pairing button to send the turntable into pairing mode. Depending on the turntable, you will need to either press and release the turntable's pair button or press and hold it; for example, on the Audio Technica AT-LP60-BT you would need to hold the turntable's pairing button for about two seconds, until the light flashes different colors. Once the turntable is in pairing mode, it will search and connect to the nearest available Bluetooth device. Once the turntable if paired and connected to your Audioengine Bluetooth device, the pair light on the receiver should turn solid.

If the Bluetooth LED is illuminated orange that means you are streaming in aptX HD which is a higher grade of Bluetooth signal.

If you’ve connected your turntable to your speakers and the volume is low, one of two situations may be happening:

If you have a turntable with a built-in phono preamp, such as the Audio-Technica ATLP120 or the Music Hall USB-1, the output may be in the wrong setting. Double check and make sure the switch is set to “line” instead of “phono.” Be careful to keep the volume of your speakers low as it can be quite loud if you had to switch it to "line".

Your turntable could also not include a built-in phono preamp, such as older turntables. If your turntable does not include a built-in preamp, you will need to add an external preamp to bring the signal up to a line level signal. We don’t have any recommendations on a particular brand or model preamp to use with this setup.

You may have a loose volume pot.  This can happen when the nut that holds the volume pot in place becomes loose.  This can be easily accessed and tightened without opening the speakers up.  Try this:

1) Pull the plastic volume knob off the volume pot.  Depending on how tight it's on, you might be able to pull it off with just your fingers. If not, you may need to cover the knob with a soft cloth and pull out with pliers.

 

2) Use a deep well 10mm socket (or socket driver) to tighten the nut around the volume pots shaft.

 

3) Press the plastic volume knob back over the volume pot's shaft, and retest.

 

This is normal. The HD3's USB interface can only accept a 16-bit format; however, the HD3's DAC will automatically pad the bit depth to 24-bit internally during playback, for lower noise and better dynamic range.

Absolutely! This is especially useful for connecting wired with newer Smartphones that do not have a headphone jack output. You'll need the correct USB-A adapter cable to connect from your tablet to the USB input on the HD3. These are generally available from the manufacturer of your tablet/smartphone, local electronic stores, or even online retailers.

Absolutely! This is especially useful for connecting wired with newer iPhones that do not have a headphone jack output. You will need to pick up the USB Camera Adapter from Apple, which allows a USB connection to the iPad (and, as of iOS7, the iPhone). Then just hook up as you would from a computer. If you'd like to be able to charge your iPhone or iPad while you use them like this, you can use the USB 3 version of Apple's USB camera adapter, which also allows passthrough charging at the same time.

The HD3 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 HD3s will keep looking great even if you like to remove / replace them frequently!

The HD3's USB interface handles up to 16-bit, and sample rates up to 48kHz, though the bit-depth will be padded internally to 24-bit. Your system will generally default to these settings when you hook up the HD3. If you mainly use 44.1K files, you might set this as the default in your system to ensure minimal sample-rate conversions. Many system players like JRiver and Amarra will default to the proper sample rate automatically.

You should be able to use multiple sources with the HD3s just fine. The analog inputs on the HD3 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.

The HD3 includes a speaker wire with banana plugs on either end, so using them with the speakers should be a simple set up. The binding posts on the back of each speaker would need to be screwed down and the plugs would need to be inserted into the center hole (please refer to the picture for reference). You would need to make sure that each end matches with the color on the corresponding binding post; for example, if you inserted the red banana plug into the red binding post on one speaker, the same would follow suit for the other speaker. The spring style banana plugs provided with the HD3s may look like they won't fit, but they will actually compress to fit into the posts on the speakers, so some amount of effort will be needed to insert them.

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