Dali Hub Sound Hub

• Quick setup: Setting up a HiFi system can be complicated. However, with CALLISTO you only need to connect the power cable to the speakers, the Sound Hub and press the CONNECT button. Ready! All set to stream from your phone or any music server.
  

• Touch volume control: The top touch panel of the CALLISTO allows you to control the volume with a single touch. The Bluetooth remote control and Sound Hub volume wheel make it really easy. No matter where you calibrate from, the volume change is applied to the entire signal chain.
  

• Multiple sources: Sound Hub supports many sources: Bluetooth (AAC & aptX-X HD), analog (RCA&Mini-jack), RCA Coaxial, optical (audio and TV), USB output (Google Chromecast Audio) and two modular expansion ports (for e.g. BluOS).
  

DALI Sound Hub includes an extensive range of analog and digital inputs coupled with an automatic and auto-sensitive source selection system.Sound Hub automatically activates the appropriate input the moment you start playing music or turn on the TV, so all you need to do is sit back and enjoy exquisite audio.

The front volume wheel includes an LED display that combines HiFi tradition with convenience. The LED display shows the current audio source as well as the volume level, and also allows you to adjust the intensity of its illumination.This is compatible with the illuminated display on the top of the Sound Hub that indicates the location of the CALLISTO speakers in the pairing process.

DALI has created a simple setup mode so that the user only has to worry about adjusting the volume, which can be done in a number of ways. On the Sound Hub, with the remote control, from the Smartphone or tablet (depending on models) and thanks to the top touch panel of the CALLISTO speakers.

The wireless connection between the Sound Hub and the speakers is a very stable digital connection, compatible with both 2.4 GHz and 5.8 GHz depending on the location and quality of the connection. The proprietary 30-bit protocol sends an uncompressed I2S audio signal in 24bit 96 kHz quality, using the excess bits to control volume, speaker name and other control data.

By working with a less saturated band, and with a protocol designed specifically for sending an audio signal, the connection is very stable with virtually no data packets being lost.

The protocol uses proactive error correction to eliminate errors due to the loss of data packets that may occur. The high-bandwidth, low-latency protocol functions as the hub of a multi-point connection.

This allows multiple speakers to connect to the same stereo signal. With a latency of less than 25 ms between video and audio of a movie or TV content, it functions as audio-visual sound equipment within current acceptable limits.

• Bluetooth: DALI Sound Hub's built-in Bluetooth as standard offers the ability to send content from almost any device to the CALLISTO system - including AAC and Apt-X HD quality. AAC is an enhanced audio protocol that even if the signal signal from a file with loss loss supports a greater amount of audio data in the transmission using Bluetooth.
  
  
  It is the highest Bluetooth streaming quality available on Apple devices. Apt-X HD is a recognized audio protocol that achieves a sound quality of up to 24bit 48 kHz and a higher bandwidth than Apt-X. This allows a high quality playback does not just traditional audio files, but also HD music files using Bluetooth in addition to having full compatibility with Apt-X.

• Optical: Sound Hub includes two individually controlled optical inputs - with a clear focus for use with TV and audio.The TV input is activated when a signal is detected. This activates the Sound Hub so that the CALLISTO loudspeakers operate when the TV is switched on.
  
  
  The audio input is activated by an audio signal, by analyzing the audio signal, Sound Hub can determine if audio is playing, and if not, it will automatically turn the system off and turn it back on when it detects an active sound source.The optical input allows any data rate from 16bit/32kHz to 24bit/192kHz. The signal will be converted to work seamlessly with the 24bit/96kHz rate of the wireless audio transfer protocol before being sent to the connected speakers.

• RCA Coaxial: For a direct digital connection between an audio device and the Sound Hub. Like the optical input, it accepts audio with resolutions between 16bit/32kHz and 24bit/192kHz.

• Analog (RCA and Mini-jack): The high-quality analog-to-digital converter converts the analog signal to a 24bit/96kHz signal using the master system clock for optimal wireless transmission to CALLISTO speakers.

• Sub output: LFE type. When a subwoofer is connected, any sound below 100 Hz is sent via this output to an active subwoofer.
  

• Pre-out: line level RCA - This allows the DALI Sound Hub to be used as a preamplifier for existing equipment, offering the possibility to enjoy the advantages of modular extensions and its self-sensitive source selection capability. The pre-out can also be used to connect CALLISTO loudspeakers via cable as an alternative to wireless transmission.
  

• USB: USB Port A provides 5V 1A power for connecting devices such as a Google Chromecast Audio or charging the cell phone while it serves as the source. It is also used to update Sound Hub firmware. The integrated USB port is not used for audio playback.

One of the most innovative features of the DALI Sound Hub is hidden in plain sight. The two modular expansion ports on the rear open the hub to a world of possibilities. Using the open-design DALI standard connector, any audio module can be fully integrated with the Sound Hub system.

Thus, it is possible to seamlessly add extra functions to the hub - with streaming, multi-room and even multi-channel expansions, making the Sound Hub future-proof. This includes any type of connected loudspeakers, separating the rapid advancement in music transmission technologies from the longevity of solid, much more durable loudspeaker technology.

You can expand Sound Hub's functionality by adding optional modules. They are currently available:

• BluOS NPM-2i Module - Offering Multiroom Capability
• HDMI Module - which has HDMI ARC and eARC input, being able to transmit in wireless streaming the signal needed for equipment up to 7.1