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Home News

Stenheim debutes Alumine SUB at Hong Kong AV Show

Marco Lisi by Marco Lisi
July 13, 2026
in News, Loudspeakers
Reading Time: 2 mins read

The Swiss brand Stenheim is getting an amazing performance with their system at the Hong Kong AV Show. They are showcasing their Reference Ultime and the Alumiune SUB. The subwoofer is a brand new addition to the Stenheim portfolio and a world premiere at the show. We will publish more details on the sub later, but for now lets get our feet wet by taking a look at the Reference Ultime.

Reference Ultime

This speaker was created in pure and well-studied lines to create not only a superb look, but unparalleled sound rendition, based on the concept behind the already well-reputed Alumine. It will enthrall future owners with its exceptional musicality, its three-dimensional space, and vibrantly alive, natural soundstage. Then there’s its flawless rendering of any genre of music, along with impressive sound levels from the deepest bass to the highest notes. The Reference is also distinct in its exceptional ease-of-use, thanks to remote operation of the MTM couple (medium tweeter) diffusion angle. It also adapts to all amplification systems and rooms, thanks to a medium-bass frequency filter included in a separate housing unit that inserts between the pre-amps and the amps (minimum 2, and up to 6 amps per speaker).

Stenheim will take the world of passionate audiophiles by storm, with its new state-of-the-art speaker.

steinheim-debutes-alumine-sub-at-hong-kong-av-show-2

Technical specifications

  • Reference loudspeakers with 8 transducers in full d’Appolito configuration
  • 4 x 32 cm high excursion woofers, 2 x 17 cm neodimium medium, 1 x neodimium tweeter, 1 x Ribbon super tweeter
  • Massive aluminium cabinet with 6 independent closed chambers (no ports)
  • Motorized angle deviation of the MTM section
  • Passive 4 ways, with analogue filter for the bass section (module inserted between preamp and power amp)
  • Connection with 2 stereo or 4 mono separate amplifiers
  • Frequency response : 15Hz to 100Khzv
  • Power handling : Bass section: 1400 W RMS – Medium-tweeter section: 250 W RMS
  • Sensitivity : min 96dB SPL/2.83V/1m
  • Max SPL : 120 dBv
  • Dim : H 1670mm x W 370mm x D 560 mmv
  • Weight : approx. 240kg each
  • Stereo active analogue 2 ways crossover and 3 ways passive corssover
  • Full warranty: 10 years

steinheim-debutes-alumine-sub-at-hong-kong-av-show-3

Visit the Stenheim website.

Tags: StenheimSubwoofers
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Marco Lisi

Marco Lisi

Publisher

Marco Lisi is the publisher of Best of High End, part of AV Concepts BV. His path into audio started early: as a teenager he was drawn into the world of free radio, presenting shows and living immersed in music every day. In his early twenties he ran his own production studio for five years, creating jingles and commercials — hands-on training in sound design, pro-audio workflows, and critical listening through studio monitors that still shapes how he evaluates gear today. He also spent years DJing in clubs before moving into publishing, first at two earlier online magazines before founding Best of High End. His hi-fi and home cinema passion was inherited from his father, an inveterate system-swapper. Marco's first setup — a confirmation gift — paired AKAI separates with entry-level Bowers & Wilkins speakers, a brand he stayed loyal to for years as his system grew from stereo into full surround and home cinema. Like many enthusiasts, he went through an extended "audiophile" phase chasing the next upgrade, before settling into a more grounded view: gear as a means to enjoy music and film, not an end in itself. Years of critical listening have given him a well-trained ear — the ability to characterize a system or pinpoint a change in the chain quickly and accurately. Just as important, his teaching background (a Belgian "regent" degree in Dutch language) gives him the tools to translate those listening impressions into clear, readable writing.

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