The Bluetooth 5.0 receiver found in the latest builds of the HD6's will support the following Bluetooth codecs:  SBC, AAC, aptX, and aptX HD.

You could use a B1 to stream Bluetooth audio in your car if you use USB power from either a cigarette lighter USB power adapter or USB port, and your car audio has an aux 3.5mm input. You can then pick up a RCA to 3.5mm adapter for the connection and the B1 will be ready to pair to your device/play through the car stereo. Let us know if you have any other questions.

The HD4's USB interface can only accept up to a 16-bit audio signal.  However, the built in DAC of the HD4's will pad the bit depth to 24-bit during playback, helping to lower the noise floor and provide a better dynamic range.

Though the HD6's are capable of 'remembering' up to 6 devices, you can only have 1 source device (phone, laptop, computer, etc) actively paired via Bluetooth with the HD6's at a time.

The HD6 Bluetooth LED light will blink and be discoverable for 5 minutes once powered on. If in that 5 minute window the speakers are paired to a Bluetooth source, the light will go solid. After the 5 minutes is up, the light will turn off and it will no longer be discoverable and able to pair to new sources, but it will still be on. If the LED is off, a previously connected device can still pair to it at any time from within their device's Bluetooth menu.

If you want to pair to to a new device, just tap the LED light once more and it will blink and be discoverable for another 5 minutes. If you're paired to something and want to disconnect from the HD6's, you can hold the button down the Bluetooth LED for a few seconds before it disconnects.

The HD6's  do not come with a dedicated headphone out. If you wanted to use headphones with our HD6 speakers, you'd want to incorporate a headphone amp, like our D1 24-bit DAC/Headphone Amp, into your set up.  When using a device like this, the audio would be cut off to your speakers when your headphones are plugged in, allowing you to enjoy the audio coming through the headphones without any interruption from your speakers.

The threaded inserts found in the P4's will accommodate a  1/4" -20 threaded bolt.  Be careful to not overtighten the bolt as you could damage the cabinet by doing so.

If the Bluetooth pairing light is solid (any color), an active connection to another device has been established.  Under most circumstances, our Bluetooth speakers/B1 only supports a single active connection at a time.  So if someone else in your home has connected to your Bluetooth device/speakers, this could surely keep you from connecting another device to it.

There is no on/off switch with the our Bluetooth devices or speakers, so once it's plugged into power it's on. The Bluetooth LED light will blink and be discoverable for 5 minutes once powered on. If in that 5 minute window it connects to a Bluetooth source, the light will go solid. After the 5 minutes is up, the light will turn off and it will no longer be discoverable by new sources, but it will still be on. If the LED is off, any previously connected device can still pair to it at any time from their device. If you want to pair  to a new device, just tap the LED light once more and it will blink and be discoverable for another 5 minutes.  If your Bluetooth device/speaker is connected to something and you want to disconnect that particular device, you can hold the button down for a few seconds before it disconnects and goes back into the flashing cycle.

If the above does not help address the issue you are experiencing, we'd recommend going through the below list of troubleshooting tips:

If you haven’t already, power cycle your Bluetooth speakers/B1 by unplugging the power connection, and reconnecting it.

1) Please make sure all of your connections are complete; also, check that all of your connector cables are in working order. You will want to swap out some interconnects to test for this.

2) Try playing audio from more than one application on your source device (phone, tablet, computer, etc.)

3) 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.

4) Try disconnecting from, and "forgetting" the Bluetooth speakers/B1 through your source's Bluetooth settings. Then, try re-pairing and connecting to the two.

5) Try using a different source device with your Bluetooth speakers/B1 to see if the issue follows. Try using the analog as well as the digital optical output, to see if you have this issue with both connections.

6) If at all possible, try your Bluetooth speakers/B1 in a different location and / or setup to see if something is causing interference in the current location. Something as simple as a router, cordless / mobile phone, halogen lamps, etc. near the speakers may be causing the issue in your setup.

Our options for connecting speakers to the TV are likely more limited, depending on what kind of audio output options the TV has.  Most older televisions have an analog audio output, and this can be connected to any of our powered speakers.  However, most newer TVs have removed the analog output option and only provide optical or HDMI Arc outputs.  Many also have Bluetooth.

If you are OK using Bluetooth for the TV, any of our Bluetooth capable speakers would work.  That said, depending on the implementation on the TV, there is the possibility of lag and you may have to manually connect each time you turn off the TV.

For a wired connection, only our HD6 speakers have an optical input.  These were designed to provide easier connectivity to a TV, and to be used as medium to large room speakers.  For a wired connection from the TV to any other speakers we make, an external digital to analog converter (DAC) would be needed to convert the optical output to analog, and then that could be connected to our powered speakers.  The drawback of using the optical output is that normally it is a fixed output and the TV remote will not control the volume.  The volume would have to be controlled at the speakers or at the DAC if a separate one is being used.

It's important to note that your source device (whatever you are using to send audio TO your speakers) can impact the volume of the speakers as well. For instance, if you have them connected to a computer/laptop/tablet, you would need to make sure your device's system volume is raised. If it's only set to 25% or 50%, that will limit how loud the speakers can get. This is true when using either a wired connection or when connected via Bluetooth.

If you are using the speakers with a turntable that has a built in pre-amp, then double check and make sure the switch is set to “line” instead of “phono.” If you do not have a phono pre-amp, you would need to pick one up to properly connect our speakers to the turntable.

S6 Troubleshooting Tips

The following troubleshooting tips can help diagnose and correct most concerns with the S6. 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.

For trouble getting the S6 to "wake up" from standby mode, try turning the volume up on your source or speakers until you hear the S6 kick in. There is a minimum volume threshold to meet before the S6 will play.

If the power indicator on the S6 rear panel is not illuminated, try these tips:

1. Verify that the AC power cord is connected to the S6 rear panel and to a working AC power outlet.
2. Check that the power switch on the S6 rear panel is in the ON position and the volume control is not turned all the way down.
3. Confirm that the rear panel voltage selector matches the operating voltage in your country or region.
4. If the power indicator on the rear panel still does not illuminate, check the fuse in the rear panel.  If the fuse is blown and needs to be replaced it is important to replace it with the same fuse type and value.

If the S6 is powered on but you are experiencing an audio-related issue, try these tips:

1. Check that the cables from your music source to the S6 are properly connected by unplugging the cables and then reconnecting.  Try using the mini-jack (Input B) as well as the RCA connectors (Input A) to see how the sub reacts.
2. Check that the volume knob on the rear panel is not set to minimum volume.
3. Verify that the volume levels of your audio source components, computer, etc are not set to minimum volume or powered off.
4. If you are using any wireless adapters or other products with your sub, please remove the wireless device (temporarily) and connect the source directly to the sub.

Yes!  You'd just need a wireless adapter like our W3 Wireless Adapter.

Most Audioengine powered speakers have variable RCA outputs for use with a subwoofer like the S6 (the exceptions being the B2 and the 512). This means that the output of the speakers and the RCA output will go up and down together. So once you dial in the volume of your S6, you should be able to adjust the volume from the speakers, or your source device. Either way the subwoofer and speakers should stay in balance as the volume is raised and lowered.

The S6's crossover is a variable low-pass filter, and will not adjust the audio for the RCA output connection. This is a full range line level output.