One of the natural alternative to the Kanto YU4 is the YU6 which is located one step higher in Kanto's Powered Bookshelf selection. Take note of the following behavior and functionality during Bluetooth operation. When you are successfully connected, the Blue LED will be lit solid, and your device will show as connected to 'YU4 by Kanto'. Controls are limited and may take time to learn. We recommend using the remote control instead of the knob. Adjacent to it is an LED light that tells you that the speakers are powered on. Design – 4.8 out of 5 When connecting audio cables the ON/OFF Switch must be turned OFF. After connecting all cables, the unit can be turned ON. When the volume is high, this system can produce noise levels that could permanently damage your hearing. YU4 is a self-powered speaker system. Do not connect the speaker terminals to the speaker intputs of a stereo amplifier. Damage may occur. Use only the power cord provided with the speakers. Connecting Audio Sources

When using AUX with a PC, reduce the volume of the speakers and increase the PC volume. Also try connecting the speaker ground terminal to the PC chassis ground if noise persists.

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Set the volume of the source to its highest level. Low source volume can inadvertently trigger standby mode. Qualcomm aptX is a product of Qualcomm Technologies International, Ltd. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries, used with permission. aptX is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries, used with permission.

If using the optical input, set the source's output to stereo — not surround, Dolby, DTS, or 5.1 — and set the sample rate to 96Khz or lower. Enable your Bluetooth device to search for a new device to pair with. Select 'YU4 by Kanto' from the list of Bluetooth devices available for pairing. The YU4 is designed to provide the best quality sound with its enhanced drivers and dome tweeters. The cabinets are handcrafted to make sure you get the best results each time. It connects to almost all audio equipment including a vinyl record player and it can also connect wirelessly via Bluetooth to any smartphone, tablet, or PC. Here is a scaled size comparison of these two speakers to give you an idea how their external dimensions compare: Note that APU is always turned on when power is applied, but will only work after automatic power down. APU will not work if unit is manually switched to standby using the remote or control knob.If you do not find the Auto Power-up (APU) feature useful, you can disable it by pressing the Balance Reset button on the remote and holding it for 5 seconds. The Status LED will blink once to indicate that you have disabled the APU feature. To enable the APU if you have disabled it, simply press and hold the Balance Reset button again for 5 seconds. The Status LED will blink twice to indicate that you have enabled the APU. We recommend the Kanto sub6 or sub8 powered subwoofer with crossover and volume controls. Most quality subwoofers offer these controls, which allow you to customize the amount of bass you will experience. The YU4 has power-saving features with its efficient Signal Detection that will automatically place the unit on standby or to power up when in use. Use the knob at the front of the remote control that comes with the speakers. The remote lets you control volume, tone, inputs, and balance when you connect your devices via Bluetooth. Value for Money – 4.8 out of 5 connect your turntables grounding wire to the grounding post (not all turntables feature a ground wire) The connection between speaker and device remains active even if input source has changed. For instance, you can switch to another input source (e.g. RCA) and return to Bluetooth operation without losing signal connection and, therefore, do not need to pair with the device again.