Avantgarde ZERO 1 XD Active Floorstanding Speaker (Pair)

Rs. 1,700,000.00

More integrated, compact and simple and yet a veritable horn loudspeaker—to the very last decibel. The ZERO 1 is a dream come true — one that we have shared with many music lovers for over twenty years. Though fascinated, moved and amazed by our larger acoustic transducers we have always longed for a more compact horn loudspeaker to make the incomparable experience of Avantgarde Acoustic accessible to a wider audience of audio enthusiasts. The ZERO 1 opens up this new road with a revolutionary size simplified shape hassle-free setup and fully integrated processor and amplifier technology.

Despite its clear, simplified shape and compact size, the ZERO 1 is full of self confidence as it seamlessly integrates itself into its owner‘s living environment. Moreover, its recessed spherical wave horn is a perfect example of no-frills functionalism.

The ZERO 1 is a fully active all-in-one system, ready to be fed an acoustic signal. All of an audiophile stereo system’s components— digital processors, analogue-to-digital converters, power amplifiers and the loudspeaker—are integrated in the ZERO 1. Moreover, they are all of level of high-end quality that is unprecedented in its class.

The loudspeakers communicate with each other via a radio link. They only need to be connected to the mains and the digital input of the master loudspeaker to the music signal (e.g. wirelessly via AirPort Express* or directly via USB, Toslink, SPDIF or the AES/ EBU interface). That‘s it. 

A full-fledged spherical wave horn system, the ZERO 1 has all of the tonal advantages provided by the horn technology—the most original and natural acoustic transducer principle. The diaphragms, which are much smaller than those of conventional loudspeakers, have less moving mass, which translates into reduced inertia. This results in a sound characterized above all by its effortlessness, absence of distortion and explosive vitality—with a phenomenal efficiency of 104 dB. However, what actually makes the ZERO 1 fascinating is that it combines the ingenuity of the horn with the possibilities of digital sound processing. In fact, the technological quantum leap taken by the ZERO 1 comes courtesy of the perfect digital audio chain. The ZERO 1 succeeds in processing digital signals without compromising sound quality and transmitting them directly to the drivers without loss-making detours via passive filters. As a result, the horns receive a perfectly processed and amplified music signal. This is made possible by extremely sophisticated digital FPGA processing which is absolutely unique in this combination.

Achieving sensational test results and awards, Avantgarde Acoustic’s XA amplifier series has evolved into the ultimate amplifier design benchmark in less than two years. Its patented technology can now be found inside the ZERO 1. In particular, the 50-watt midrange and treble amplifiers are guarantors of the impressive efficiency of 104 dB coming to full fruition. After all, these ultra-wideband amplifiers are optimized for maximum resolution and thus capable of reproducing the most minute of details both cleanly and devoid of distortion. Furthermore, these are pure Class A power amplifiers which operate without negative feedback (zero feedback). The supply voltage of the XA Series power amplifier passes through both primary and secondary filters, after which it is actively regulated and made available in huge energy storage units within the circuit. This eliminates any degradation in sound quality caused by mains pollution. A massive power amplifier with a rated output of 400 watts ensures that ample power is on tap for bass duties—naturally running in the energy-efficient Class D mode.


  • 3-way active system
  • 400 W Class-D 2 x 50 Watt Class A/AB
  • FPGA-based FIR filter programming
  • 5 digital 1 analog input
  • Remote control for input and volume
  • 104 dB efficiency midrange and tweeter
  • 130 mm spherical tweeter horn
  • 400 mm spherical midrange horn
  • 12 inch bass driver
  • Made in Germany


  • Type: Semi active horn loudspeaker
  • Power: 2 x 50w Class A + 1 x 400w Class D
  • Drivers: 25mm tweeter in 77×130mm horn, 125mm midrange in 130×400mm horn, 300mm bass unit
  • Frequency response: 30Hz-20kHz 
  • Sensitivity: >104dB
  • Crossover frequencies: 300Hz, 4kHz
  • DSP section
  • Delay: adjustable in 0.01ms steps
  • High/Low pass filters: Bessel, Butterworth, Linkwitz-Riley filters
  • Parametric EQ: 10× available
  • Compressor: programmable
  • Limiter: programmable
  • Dimensions (W×D×H): 49×32×104cm
  • Weight: 40kg


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