The essence of the DALI KUBIK FREE is connectivity. This elegantly designed active speaker enables you to enjoy music from a wide variety of sources and can be connected via Bluetooth, USB, Optical or Analog inputs. Bluetooth and Optical input is just two of the seven possible connection types that the KUBIK system offers. The broad range of connectors ensure that any device will connect to the KUBIK system at the best possible quality. To improve ease of use even more, the KUBIK system offers IR learning that enables the use of an existing remote control to navigate the KUBIK system. By working with many of DALIs well-known speaker technologies like the soft dome tweeter, wood fibre cones, low-loss rubber surrounds and a glass reinforced polymer basket, the KUBIK system is clearly a true DALI speaker at its core. Adding a 4 channel stereo Class D amplifier into the mix only underlines the development teams dedication to making the KUBIK system a real Hi-Fi speaker. The KUBIK system consists of two elements the KUBIK FREE and the KUBIK XTRA. The two components can be setup in three different ways. Using the KUBIK FREE alone as a standalone system, using the KUBIK FREE and the KUBIK XTRA (sold separately) together in a stereo system. The main housing is based on one piece of extruded aluminium. This serves to strengthen the entire product giving it a solid feel and ensures that all components can be fitted tightly onto the structure eliminating vibrations. The back plate also acts as heat transfer for the amplifier and power supply. The 100 Watts Class D amplifier is a true active solution offering a fully digital crossover, direct handling of digital sources, and a high quality AD converter. The four channel stereo amplifier (4 x 25 Watts) controls the audio signal to the woofer and the tweeter module individually.