S351DB Bookshelf Speaker and Subwoofer (Certified Refurbished)

Yes, you can use a subwoofer with our powered speakers, but the subwoofer must also be self-powered. You will need an RCA Y-splitter. From the audio source run one set of the RCA’s to the speakers, and the other set of RCA’s to the subwoofer. Note that speakers without a sub-out do not have a low-pass filter, so they will continue to play bass frequencies when connected to the subwoofer.

This is possible but only if the audio source is capable of dual Bluetooth audio. Please check with your Bluetooth devices owner’s manual, or the manufacturer to see if it has dual Bluetooth audio capability. If your device does not have this capability you can purchase an external Bluetooth splitter transmitter from many online retailers.

This issue is usually caused by a tracking issue on the turntable. To test if it is the turntable at fault or the speakers, reverse the RCA jacks on the control speaker, red to white and white to red. If the issue now occurs on the other speaker, it is the turntable at fault. Please contact your turntable manufacturer for instructions on how to properly set the tracking. If the issue remains on the same channel it is problem. Please contact our customer service team for troubleshooting and assistance.

1. Make sure the Bluetooth input is selected, you can do this one of two ways. With the speaker remote, press the button with the Bluetooth symbol or you can click-in the volume knob on the control speaker to cycle through the inputs. If the speakers have an LED indicator the light will turn blue, if they have a screen the Bluetooth symbol will appear, you will now be able to pair a device. If you are able to pair, but are still not getting audio please check that the volume is up on both the Bluetooth device and the speakers.
2. Disconnect any previously paired devices. Press and hold the volume knob down on the control speaker for 2-5 seconds. Then pair with the speakers from your Bluetooth device.

Self-powered speakers often require the use of a preamp to enhance the phono signal to a line-level suitable for amplification. Many contemporary turntables are equipped with a convenient switchable preamp feature, which simplifies the connection process.

Typically, you can find the preamp switch on the back of the turntable or beneath the platter. It's commonly labeled as 'Phono/Line,' and for proper connection to self-powered speakers, it should be set to the 'Line' position.

To determine whether your turntable has a built-in preamp, we recommend consulting the owner's manual provided with your turntable or reaching out to the turntable manufacturer. They can offer precise instructions and guidance on adjusting the preamp settings, ensuring you achieve optimal sound quality.

In order to protect the speakers (and your ears) from a loud volume surge, they utilize a volume remember setting that powers on at anywhere from 20 to 60% lower volume, depending on how loud they were when they were last switched off.

Remotes are available for purchase on Edifier’s official website. Visit the Edifier site that is specific to your region and then click the “Shop” at the top right. On the next page, click on “Accessories” located in the left sidebar. The accessories page should have a listing for the remote.

1. Check that the optical input is selected on the speakers, for speakers with an LED indicator the light will be red, for speakers with a screen, OPT will be displayed.
2. Our speakers use Pulse-Code Modulation, or PCM as the optical/digital input signal. TV’s with an optical audio output will have the option to switch the optical/digital output to PCM. This can usually be done by going into the audio settings, or advanced audio settings, on the TV menu. If you cannot find the setting for your particular brand and model of TV, please contact the manufacturer, they will easily be able to walk you through the process of switching to PCM.

1. Are the speakers plugged into a working outlet and the master power switch on the active speaker is switched to on? Can you try the speakers with a few different outlets? Is the LED indicator on the speaker no longer coming on once you do this?
2. If the speakers are turning on can you try using them with a few different inputs and audio sources to see if you can get them to play? Also, be sure to check the the input you are using to connect to the speakers is selected using the remote or volume knob.
*If the speakers will not turn on after checking the power switch and making sure the outlet is working, the internal power supply is most likely bad and the speakers will need to be replaced if they are under warranty.