Your speakers were carefully tested and inspected before shipping, but please check for any damage during
unpacking. It is rare that damage would occur but if this should happen please contact the shipping company
immediately.
Quick setup
1. Connect the included speaker wire between the HD4 speakers by firmly pressing each of the four-speaker wire
connectors into the ends of the terminals on each speaker. Note to observe proper wire polarity to each
speaker connector.
2. Attach the Bluetooth antenna to the HD4 rear panel.
3. Verify that the power switch on the rear panel of the left speaker is in the OFF position.
4. Connect the AC power cable to the HD4 left speaker rear panel and plug the other end of the cable into a
functioning power outlet.
Wireless connection
1. Turn the power on via the rear panel power switch. HD4 will automatically go into Bluetooth “pair mode” and the
Pair button on the rear panel will flash.
2. On your device (phone, tablet, or computer) turn on Bluetooth and go to Bluetooth preferences.
3. Select “Audioengine HD4” to pair and connect. The Pair indicator light on the HD4 rear panel should now be on
solid.
4. Play your music and adjust volume levels for HD4 and your device.
Pairing additional devices
To add additional wireless devices, enable Bluetooth pair mode by disconnecting HD4 from your device or by
pressing and holding the Pair button on the HD4 rear panel for about 3 seconds until the pair indicator light starts
flashing. Repeat steps 2 & 3 to connect another device.
HD4 wirelessly connects to one Bluetooth device at a time, however, it will pair to and remember up to six different
devices.
Wired connection
1. Connect one of the included audio cables between your device and input on the HD4 rear panel.
2. Play music and adjust the volume on the speakers and your device to your desired listening levels.
USB computer audio connection
1. Connect the included USB cable between your computer and the USB input on the rear panel of the HD4 left
powered speaker.
2. If using Windows, your HD4 should be recognized automatically. For macOS, under System
Preferences/Sound/Output, select “Audioengine HD4”.
Inputs and volume settings
Multiple devices may be connected to the speakers at the same time and the wireless and aux inputs are open and
active, so it’s easy to switch between your phone, tablet, computer, TV, etc.
To adjust the volume, we recommend you first set a level on HD4 and then use the volume control on your device to
adjust the overall level. Volume settings are flexible and there is no right or wrong so feel free to experiment to find
what works for you.
Variable audio output
HD4 includes a variable full-range preamp audio output so you can connect a subwoofer or another music sytem.
The HD4 output is adjustable so the volume level can be controlled from the HD4 volume control or your phone,
computer, or tablet.
You can also wirelessly stream music wirelessly from HD4 to other systems around your house by connecting the
Audioengine W3 wireless adapter to the audio output.
The HD4 system includes built-in power amplifiers so do not connect the HD4 speaker terminals directly to the
speaker outputs of a stereo receiver or power amplifier. Instead, use the preamp output of your stereo receiver
connected to one of the audio inputs of the HD4.
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