How To

Orange cable is JBL signature color!

Vehicles that have an Active Noise Cancelling system are prone to encounter sound issues when an after-market subwoofer is installed. The sound issue can be described as a hum or low-frequency tone. To understand why this is happening it's important to understand how the ANC system in a vehicle works.

 

The ANC system's main job is to pick up on any internal/external low-frequency sound, such as engine/road noises, and block them out. The signal is sent to its ANC processor to produce a reverse phase audio signal and is sent back to the speaker system. The inverted phase signal will cancel out the internal/external low-frequency sound, blocking out any unwanted noise.

 

When you add an aftermarket subwoofer into the mix the ANC system hears the subwoofer output as being part of the engine/road noise. The ANC system believes the low-frequencies being emitted by the subwoofer are part of the unwanted noise and this leads to the ANC system producing an out-of-phase low-frequency signal to block the sub's output.

 

To identify if your vehicle has an ANC system you can do one of two things.

 

1. Look up your vehicle's specifications online and verify if an ANC system is installed.
2. Drive your vehicle, play music, put your vehicle in park, and then either turn off the engine or open your door. If the subwoofer plays as it should you'll know you have an ANC system.

To fix the sound issue you'll need to disable the ANC system. You can accomplish this by doing one of three things.

 

1. Contact your dealership to see if they can disable the ANC system
2. Use an ANC Bypass Harness
3. Disable the ANC system yourself

 

There is a setting in the JBL One app called Bluetooth reconnection. You can change the behavior to enable it to automatically reconnect every time the speaker is turned on, if this is the behavior you want.

We believe the baseline performance of the QuantumSPHERE technology is cutting edge in terms of localization. The calibration feature improves upon this performance by calibrating the system to your individual anatomy.

If the preset DAB/FM station signal is not strong enough the alarm will go off in buzzer mode instead. Make sure the signal is strong enough, by checking that the station plays without static or distortion (FM).

This can be caused by the “input switch” on the unit’s rear panel not being fully engaged in the proper position; make sure that the “input switch” is fully engaged in the proper position (RCA or XLR). Also, make sure that only one input connector is used at a time, i.e., only the RCA or the XLR. They should not be used simultaneously. Explanation: The “input switch” is actually a ground switch, not an input selection switch. By using the switch only to change the ground connection, the signal connections never have to pass through a set of switch contacts. This allows for superior audio performance and enhanced long-term reliability.

If you have a mesh network (more commonly seen in Eero Mesh networks), it is possible that you may experience your satellite speakers or subwoofer intermittently disconnecting from the soundbar. This is similar to normal interference that occurs with products on a similar wireless frequency. The special thing about Eero mesh networks is that they do not allow you to move a device to the 5Ghz or 2.4Ghz band. The system will automatically decide which devices should be on which band and will move them accordingly (switching whenever needed). Some of our soundbars run on a 5Ghz frequency which is where the interference can occur. Since we cannot change the signal in which they operate and we cannot change the band they are connected to via their Eero mesh network, there are a few things you can do to try and stop this from occurring. 

  

1. Move the mesh nodes far away from the soundbar 
2. Use the 2.4Ghz band instead of the 5Ghz band (if your mesh system allows this) 
3. Ensure to enable/utilize the MU-MIMO setting (not applicable to all mesh systems). Please refer to your router's website to see if MU-MIMO is being utilized by default. 

  

What is MU-MIMO? 

MU-MIMO stands for Multi-User, Multi-Input, Multi-Output. This allows for the router to send a signal to multiple devices at one time vs. the previous version in which the router would be able to connect to multiple devices, but only send the signal to one device at a time. 

  

NOTE: You may notice that when the soundbar is turned on, there may be a dip in the immediate internet speed, but it will go back to normal within less than a minute.

This speaker has a USB-C charging protection safety feature. This safety feature will play an alert sound & cause the LED indicators to flash when the charging port has detected water, salt, or other chemical. When you encounter the alert you will need to remove the charging cable, wipe down any excessive moisture on or around the charging port, and leave the speaker in a area to completely dry off. Once it is completely dry, you'll be able to plug the USB-C cable back in and charge your speaker.

This is considered as extra equipment

We do not publish a frequency response for these models because this is dependent on room acoustics and their internal DSP settings.

Since the No. 40 uses a card cage design, all of the No. 40 boards plug into a backplane. Since the No. 40s Video Processors backplane was designed before HDMI existed it cannot accommodate HDMI video, so the HDMI video signal is passed straight through from one of the three HDMI inputs on the HDMI card to the system’s display device via the HDMI output. Plugging the No. 40 HDMI card into the Audio Processor allows us to capture the HDMI audio signal and process it.

General Answer: The volume control circuits in the No.585 have been designed to provide exceptionally high levels of accuracy and linearity, and have been tuned to provide the best possible listening experience. You may hear small clicking sounds when quickly adjusting the volume control during periods of silence – this is normal when there is no input signal. The sounds are greatly diminished under normal use when listening to active audio sources. Detailed technical explanation: The volume control in the №585 is built around a circuit architecture called an R-2R ladder, a highly accurate device. The R-2R ladder in the №585 is based on an R of 1000 ohms, which is smaller by a factor of 10-100 than most potentiometer-based volume controls. The result is a nearly constant bandwidth, from the lowest volume setting to the highest, of greater than 400 kHz, more than an order of magnitude above the upper limit of human hearing. Because the resistance value in the R-2R ladder is so small, and because all DC blocking capacitors have been eliminated from the signal path of the №585, the few micro volts present on the input and output stages can give rise to extremely small but measurable DC currents flowing in the R-2R ladder. When the user adjusts the volume setting, the miniscule changes in DC current flowing from the ladder into the output stage occasionally can be perceived as small clicks, typically audible only under extremely quiet listening conditions.