5K supports 96KHZ/24-bit USB audio streaming.
- USB Audio Class 1.0 / No additional driver needed.
- Windows, macOS, and Linux
- USB C-to-C direct connection with Android smartphones
You can have it charging and streaming simultaneously with your PC or laptop while keeping the Bluetooth link with a smartphone and controlling every feature of Qudelix-5K through the companion mobile application.
Any incoming sound alert or call ringing from the smartphone will be automatically routed to the 5K, even when you listen to music through a 5K USB DAC.
USB Powered with charging on
When connected to a USB Charger or PC, 5K gets its operating power from the USB VBUS, not from the battery. The USB VBUS charges the battery and simultaneously provides power to the system. It doesn’t consume any battery power, nor doesn’t shorten the battery life.
USB Powered with charging off
If the battery gets fully charged, the 5K built-in charger will stop charging, cutting off the current flow to the battery. Then, the battery automatically becomes disconnected electrically from the system.
Connecting 5K to multiple source devices
5K is a multi-functional DAC supporting Bluetooth A2DP and USB Audio Class. As in the block diagram below, you can have multiple connections simultaneously with two Bluetooth Audio source devices and one USB Audio source device. 5K can keep the connections with multiple source devices, Bluetooth or USB, but it can stream audio from a single source device one by one at a time.
Multiple connections with multiple source devices5K can stream audio from one source device at a time, thus, when multiple source devices stream audio to a 5K simultaneously, 5K selects one input.
Bluetooth and USB icon buttonsThey appear when 5K connects with each source device over the respective link. The icon in Red represents the active audio source currently streaming. The icons are buttons, and pressing an icon would change the input priority.
Multiple connections with a single source deviceYou can connect a 5K to a smartphone with Bluetooth and USB. In this case, the smartphone has two output devices; one is 5K Bluetooth, and the other one is 5K USB. A source device (i.e., a smartphone or a pc) can't output audio to multiple devices. So users SHOULD select the output device to use among the available audio output devices
Bluetooth Auto Disconnect for USB DAC
'Bluetooth Auto Disconnect for USB DAC' is a new feature with the software v2.0. 5K automatically disconnects any existing Bluetooth Audio Link when connected to a USB Host. And if the USB is disconnected, 5K reconnects the Bluetooth Audio Link. It only disconnects the Audio Link so that you can keep the Qudelix iOS/Android App and the voice call over Bluetooth.
For example, When you plug a 5K into a smartphone over USB, the 5K automatically disconnects the Bluetooth Audio link. Then, you unplug the 5K from the smartphone, and the 5K automatically reconnects the Bluetooth Audio link.
This way, the smartphone will have only one audio output device at a time, the 5K Bluetooth or the 5K USB. It can save you from the tedious work of selecting an audio output device repeatedly.
iPhone USB DAC connection
To connect a USB DAC with an iPhone lightning port, we need a Lightning to USB-C OTG Cable Or Apple Camera Kit.
However, unlike Android USB-C, the lightning port only provides the output current to the accessory up to 150mA. And if the accessory device draws too much power from the lightning port, the iPhone will drop the connection.
You can temporarily turn off the 5K built-in charger for this use case. (The app, Device, Battery, Charger Control --> OFF)
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