Wireless Speakers Archives

The following troubleshooting tips can help diagnose and correct most concerns with the A1-MR. 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 problem persists and your A1-MR is located within the US, please provide us with the following information: serial number, purchase information (when and where), your current shipping address, and the results of each step.

If your A1-MR is outside of the US, we are unable to offer product services, but please use the link below to contact the distributor in the country where the A1-MR is located. Since the distributor is who will be assisting you from this point on, they will be able to let you know what options you may have. Be sure to still include your full name, where and when your A1-MR was purchased, the serial number, and your current shipping address when contacting any distributor:

https://audioengineusa.com/international-distributors/

If you haven’t already, power cycle your A1-MR by unplugging the power connection, and reconnecting it.

If the power indicator on the A1-MR is not illuminated, try these tips:

Make sure the AC power cord is connected to the power supply unit and to a working AC power outlet.
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 with a wired connection, try these tips:

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)
Check that the volume level of your audio source components or devices is not set to minimum volume or powered off.
Check speaker wire connections from the left (powered) speaker to the right (passive) speaker. Confirm this by removing the speaker wire from each speaker and reconnecting. Also check the speaker wire polarity by verifying that the wires are going to the same terminals on both speakers.
Check that the cable from your audio source to the speakers are properly connected. Confirm this by unplugging the audio cable and then reconnecting.
Decrease the volume of the input audio source and increase the volume of the speakers.
Try playing audio from more than one application on the source device you typically use to connect to your A1-MR (phone, tablet, computer, etc). Make sure the volume is up on your media players, internet radio, master control, device volume, etc. and the balance control is centered.
Check to make sure your source device is running the most up to date version of software available. If an update is available, make sure you restart your device after the update is installed. For Mac users, be sure to check the App store to see if there's a newer version of Mac OS you could be running.

Standard HD4 troubleshooting tips

The following troubleshooting tips can help diagnose and correct most concerns with the HD4. We have attempted to make this list as comprehensive as possible. Although some of these tips may not apply to your issue, please still go through each one.

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. Double check that your audio source is on and that its volume is not set to the minimum level.
3. Check the speaker wire connections from the left (powered) speaker to the right (passive) speaker. Confirm this by removing the speaker wire from each speaker and then reconnecting them. Also, check the speaker wire polarity by verifying that the wires are going to the same terminals on both speakers (black to black, red to red, etc.).
4. Make sure that the cables from your audio sources to the speakers are properly connected. Confirm this by unplugging the audio cables and then reconnecting them.
5. Decrease the volume of the input audio source and increase the volume of the speakers.
6. Try using different audio source 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. When using a computer with your HD4 speakers, make sure that the level is turned up on your various volume controls (media players, internet radio, master control, device volume, etc.) and that the balance control is centered.

If your input source has its own EQ, then 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, then 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, mobile phone or halogen lamp near the speakers can cause interference.

HD4 troubleshooting tips - Internal USB digital-to-analog converter

Try these tips if your computer does not recognize the speaker through your computer’s USB input. Additionally, try these tips if the sound through the USB input 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 HD4 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.

HD4 troubleshooting tips - Bluetooth

Verify that the HD4 is connected to power and that the rear power switch is turned to the "on" position. If you haven’t already, power cycle your speakers by switching them off and back on.
If your HD4 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 HD4 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 HD4 using your source device, and the LED will go from off to on and solid).
Try playing audio from more than one application on your phone, tablet or computer.
Check to make sure your source device (computer, tablet, phone, etc.) is running the most up-to-date version of software available.
Disconnect from and forget the HD4 speakers in your device’s Bluetooth settings. Then, pair to the HD4 speakers again.
Try using a different source device with your HD4 to see if the issue follows. Also, be sure to test your HD4's analog input.
If possible, move your HD4 speakers to a different location to see if the issue persists. Nearby devices (such as a wireless internet router, mobile phone, halogen lamp, etc.) can sometimes cause interference in your setup.

The following troubleshooting tips can help diagnose and correct most concerns with the A1. 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 A1 is not illuminated, try these tips:

Make sure the AC power cord is connected to the power supply unit and to a working AC power outlet.
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 with a wired connection, try these tips:

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)
Check that the volume level of your audio source components or devices is not set to minimum volume or powered off.
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.
Check that the cable from your audio source to the speakers are properly connected. Confirm this by unplugging the audio cable and then reconnecting.
Decrease the volume of the input audio source and increase the volume of the speakers.
Try using different audio input sources and/or devices to see if the problem follows.
If you are using a computer with your A1, 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.

A1 troubleshooting tips – Bluetooth

Verify that the A1 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.
If your A1 is already connected to a device via Bluetooth, the Bluetooth pair light on the back panel of the left speaker will be on and solid (note that if your A1 has been idle and not connected to a device for more than 2 minutes, the Pair light will automatically turn off). Tap the Pair button and it should begin blinking (or pair to your A1 using your source device, and the LED will go from off to on and solid).
Try playing audio from more than one application on your phone/tablet, or computer.
Check to make sure your source device (computer, tablet, phone, etc) is running the most up-to-date version of software available. For Mac OS users, be sure to check the App store to see if there's a newer version of Mac OS you could be running.
Try disconnecting from and forgetting the A1 through your device’s Bluetooth settings, and re-pairing to the A1.
Try using a different source device with your A1 to see if the issue follows. Also be sure to test your A1 using the analog input as well.
If possible, try your A1 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.

The following troubleshooting tips can help diagnose and correct most concerns with the 512. 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 button on the 512 is not illuminated, then try these tips:

Make sure the 512 is charged. If not, you’ll need to connect the 512 to an external USB AC adapter with the supplied USB cable.
Press and hold the power button on the top of the 512 until you hear the power-on notification

512 troubleshooting tips – Bluetooth

If you haven’t already, power-cycle your speaker by turning it off and back on.
Be sure to test your 512 using the Aux input instead of Bluetooth.
If your 512 is already connected to a device via Bluetooth, the Bluetooth Pair light on the top of the speaker will be on and solid. To disconnect a device that is currently connected to the speaker, press and hold the Pairing button on the top until you hear the “pair mode” notification.
Check to make sure your source device (computer, tablet, phone, etc) and all audio apps are running the most up-to-date version of software available. For Mac OS users, be sure to check the app store to see if there's a newer version of Mac OS you could be running.
Try playing audio from more than one application on your phone/tablet, or computer.
Try disconnecting from and forgetting the 512 through your device’s Bluetooth settings and then re-pair to the 512.
Try using a different device with your 512 to see if the issue follows.
If possible, try your 512 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.

If you are experiencing an audio-related issue using the Aux input, try these tips:

Check to see if the Aux button on the top of the 512 is illuminated. If not, press the Aux button.
Check that the cables from your audio sources to the speaker are properly connected. Confirm this by unplugging the audio cables and then reconnecting.
Verify that the volume control on the top of the speaker is not turned all the way down.
Make sure the volume is up on your media players, internet radio, master control, device volume, etc. and that the balance control is centered.
Decrease the volume of the input audio source and increase the volume of the 512 speaker.
Try using different audio input sources and/or devices to see if the problem follows.
If your input source has its own EQ (equalizer), please make sure the low end is at a moderate level as having too much bass in your signal can cause distortion.
Move your speaker 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 speaker can cause interference.

The following troubleshooting tips can help diagnose and correct most concerns with the A2+ Wireless. 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 A2+ external power supply unit is not illuminated, try these tips:

Make sure the AC power cord is connected to the power supply unit and to a working AC power outlet.
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 with a wired connection, 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 A2+ Wireless, 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.

A2+ Wireless 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 A2+ 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.

A2+ Wireless troubleshooting tips – Bluetooth

Verify that the A2+ 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.
If your A2+ is already connected to a device via Bluetooth, the Bluetooth pair light on the back panel of the left speaker will be on and solid (note that if your A2+ has been idle and not connected to a device for more than 2 minutes, the Pair light will automatically turn off). Tap the Pair button and it should begin blinking (or pair to your A2+ using your source device, and the LED will go from off to on and solid).
Try playing audio from more than one application on your phone/tablet, or computer.
Check to make sure your source device (computer, tablet, phone, etc) is running the most up-to-date version of software available. For Mac OS users, be sure to check the App store to see if there's a newer version of Mac OS you could be running.
Try disconnecting from and forgetting the A2+ through your device’s Bluetooth settings, and re-pairing to the A2+.
Try using a different source device with your A2+ to see if the issue follows. Also be sure to test your A2+ using the analog input as well.
If possible, try your A2+ 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.

The following troubleshooting tips can help diagnose and correct most concerns with the A5+ Wireless. 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 front panel is not illuminated, then try these tips:

● Verify that the AC power cord is connected to the speaker rear panel and to a working
AC power outlet.
● Check that the speaker’s power switch is in the ON position.
● Check that the rear panel voltage selector matches the operating voltage in your country
or region.

If there is still no power, check the fuse in the rear panel. If the fuse is blown and needs
to be replaced it is important to replace with the same fuse type and value.

If the front panel indicator light is on but you are experiencing an audio-related or other issue with a wired connection, try these tips:

● Power-cycle the speakers by switching them off and back on using the power switch on
the rear panel.
● Be sure the speakers are not in MUTE or SLEEP mode (if so, the front panel indicator
light will be flashing).
● Check that the cables from your audio sources to the speaker are properly connected.
Confirm by unplugging the audio cables and then reconnecting. Try using as many
different inputs and input sources as possible to see if the problem follows.
● Check speaker wire connections from the left (powered) speaker to the right (passive)
speaker. Confirm by removing the speaker wire from on each speaker and
reconnecting. Also check speaker wire polarity by verifying that the wires are going to
same terminals on both speakers.
● Verify that your audio input source components or devices are all powered on and the
volume levels are turned up.
● If using a computer, verify that the audio output balance setting is centered for the OS
and all apps.
● Make sure the speakers are not too close to a wall or other obstruction, which could limit
bass output.
● Decrease the volume level of the audio input source and increase the volume of the
speakers.
● If you are using a wireless adapter, preamp, or external DAC with these speakers,
remove these (temporarily) and connect the audio source directly to the speakers.
● If your input source has its own EQ or other sound settings, make sure they are all
temporarily turned off.
● Also try moving the speakers to a different location to see if something is causing
interference in the current location. Something as simple as a wireless internet router,
cordless or mobile phone, or halogen lamp near the speakers can all cause interference.

If you’re having Bluetooth-related issues, try these tips:

If your A5+ Wireless is already connected to a device, the Pair LED on the rear of the left
speaker will be on and solid; if your A5+ Wireless has been idle (and not connected to a device)
for more than 2 minutes, the LED will be off. Tap the LED and it should begin blinking (or pair to
your A5+ Wireless using your source device, and the LED will go from off, to on and solid). If
your A5+ Wireless’ LED indicator doesn’t light up, try using a different AC outlet, and check to
see that any wall outlets or surge protectors are switched to the "On" position and are in working
order.

● Try playing audio from more than one application on your phone/tablet, or computer.
● Check to make sure your source device is running the most up to date version of
software available.
● Try disconnecting from and forgetting the A5+ Wireless through your source’s Bluetooth
settings, and re-pairing to the A5+ Wireless.
● Try using a different source device with your A5+ Wireless to see if the issue follows.
Also be sure to test your A5+ Wireless using the analog input as well.
● If at all possible, try your A5+ Wireless in a different location and / or setup to see if
something is causing interference in the current location.

A5+ Wireless troubleshooting tips - remote control

Remote control is not working or remote range is reduced.

● Make sure nothing is blocking the remote control receiver, which is in the left powered
speaker.
● Check the remote battery to be sure it is installed correctly.
● Replace the battery with another CR2025 battery

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:

Make sure the AC power cord is connected to the power supply unit and to a working AC power outlet.
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.

HD3 troubleshooting tips - Bluetooth

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.
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).
Try playing audio from more than one application on your phone/tablet, or computer.
Check to make sure your source device (computer, tablet, phone, etc) is running the most up-to-date version of software available.
Try disconnecting from and forgetting the HD3 through your device’s Bluetooth settings, and re-pairing to the HD3.
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.
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.

The following troubleshooting tips can help diagnose and correct most concerns with the HD6. 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 HD6 front panel is not illuminated, then try these tips:

Verify that the AC power cord is connected to the speaker rear panel and to a working AC power outlet.
Check that the speaker’s power switch is in the ON position.
Check that the rear panel voltage selector matches the operating voltage in your country or region.
If there is still no power, check the fuse in the rear panel. If the fuse is blown and needs to be replaced it is important to replace with same fuse type and value.

If the front panel indicator light is on but you are experiencing an audio-related or other issue, try these tips:

Power-cycle the speakers by switching them off and back on using the power switch on the rear panel.
Be sure the speakers are not in MUTE or SLEEP mode (if so, the front panel indicator light will be flashing).
Check that the cables from your audio sources to the speaker are properly connected. Confirm by unplugging the audio cables and then reconnecting. Try using as many different inputs and input sources as possible to see if the problem follows.
Check speaker wire connections from the left (powered) speaker to the right (passive) speaker. Confirm by removing the speaker wire from on each speaker and reconnecting. Also check speaker wire polarity by verifying that the wires are going to same terminals on both speakers.
Verify that your audio input source components or devices are all powered on and the volume levels are turned up.
If using a computer, verify that the audio output balance setting is centered for the OS and all apps.
Make sure the speakers are not too close to a wall or other obstruction, which could limit bass output.
Decrease the volume level of the audio input source and increase the volume of the speakers.
If you are using a wireless adapter, preamp, or external DAC with these speakers, remove these (temporarily) and connect the audio source directly to the speakers.
If your input source has its own EQ or other sound settings, make sure they are all (temporarily) turned off.
Also try moving the speakers to a different location to see if something is causing interference in the current location. Something as simple as a wireless internet router, cordless or mobile phone, or halogen lamp near the speakers can all cause interference.

HD6 troubleshooting tips - Bluetooth

Verify that the HD6 is connected to power and the rear panel power switch is turned on. If you haven’t already, power-cycle your speakers by switching them off and back on.
If your HD6 is already connected to a device via Bluetooth, the Bluetooth Pair light on the rear panel of the left speaker will be on and solid (note that if your HD6 has been idle and not connected to a device for more than 2 minutes, the Pair light will automatically turn off). Tap the Pair button and it should begin blinking (or pair to your HD6 using your source device, and the LED will go from off to on and solid).
Try playing audio from more than one application on your phone/tablet, or computer.
Check to make sure your source device (computer, tablet, phone, etc) is running the most up-to-date version of software available. For Mac OS users, be sure to check the App store to see if there's a newer version of Mac OS you could be running.
Try disconnecting from and forgetting the HD6 through your device’s Bluetooth settings, and re-pairing to the HD6.
Try using a different source device with your HD6 to see if the issue follows. Also be sure to test your HD6 using the analog input as well.
If possible, try your HD6 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.

HD6 troubleshooting tips - remote control

Remote control is not working or remote range is reduced.

Make sure nothing is blocking the remote control receiver, which is in the left powered speaker.
Check the remote battery to be sure it is installed correctly.
Replace the battery with another CR2025 battery

The following troubleshooting tips can help diagnose and correct most concerns with the B2. 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 indicator on the B2 rear panel is not illuminated, then try these tips:

If the indicator light on the B2 rear panel is not illuminated, then make sure the AC power cord is connected to the rear panel and to a working AC power outlet.
Verify that the B2 rear panel power switch is in the ON position.

If the indicator light on the B2 rear panel is on but you are experiencing an audio-related issue, try these tips:

Check that the cables from your audio sources to the speaker are properly connected. Confirm this by unplugging the audio cables and then reconnecting.
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).
Make sure the volume is up on your media players, internet radio, master control, device volume, etc. and that the balance control is centered.
Decrease the volume of the input audio source and increase the volume of the B2 speaker.
Try using different audio input sources and/or devices to see if the problem follows.
If your input source has its own EQ, please make sure the low end is at a moderate level as having too much bass in your signal can cause distortion.
If you are using a wireless adapter, preamp, or external DAC, remove these (temporarily) and connect the audio source directly to the B2 speaker.
Move your speaker 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 speaker can cause interference.

B2 troubleshooting tips - Bluetooth

Verify that the B2 speaker is connected to power and the rear panel power switch is turned on. If you haven’t already, power-cycle your speaker by switching it off and back on.
If your B2 is already connected to a device via Bluetooth, the Bluetooth Pair light on the rear panel of the left speaker will be on and solid (note that if your B2 has been idle and not connected to a device for more than 2 minutes, the Pair light will automatically turn off). Tap the Pair button and it should begin blinking (or pair to your B2 using your source device, and the LED will go from off to on and solid).
Check to make sure your source device (computer, tablet, phone, etc) and all audio apps are running the most up-to-date version of software available. For Mac OS users, be sure to check the App store to see if there's a newer version of Mac OS you could be running.
Try playing audio from more than one application on your phone/tablet, or computer.
Try disconnecting from and forgetting the B2 through your device’s Bluetooth settings and then re-pair to the B2.
Try using a different device with your B2 to see if the issue follows. Also be sure to test your B2 using the analog input as well.
If possible, try your B2 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.