Avantgarde Acoustic produces high-end speakers. With the ZERO1, the high end manufacturer has succeeded in producing another masterstroke. Despite its notedly smaller measurements, it is a real horn loud speaker with high-quality processor and amplifier technology inside. Besides a power cable, no further connection is needed. The loudspeakers communicate with each other wireless. The signal is delivered to the master loud speaker, e.g. via an Apple AirPort-Express-Station. The result can only be called “astonishing” in the word’s best meaning: deep, dry basses, the typical spatial image and a maximum of musicality together with their esthetic look turn the ZERO1 into highly attractive converters.