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Home News

Metaxas Sirens Prelude reference monitor speakers

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

With over 40 years of playback and 25 years of concert recording experience, Kostas Metaxas has once again subverted what is or isn’t possible in the aesthetic and state of the art in loudspeaker design. Once Metaxas perfected the art of CNC machining organic shapes with amplifiers, it opened up similar possibilities with speakers. CNC allows the sculpting of a shape with incredible rigidity, in a much smaller form factor than is possible with other materials. At the same time it minimizes front baffle diffraction whilst maximizing internal volume for an ideal and extended bass response.

The Sirens

With more than a passing reference to Homer’s Odyssey, the apt metaphor is testimony to the sheer musicality and realism that allows this potent 3-way system, CNC carved from a block of solid aluminium or titanium to engage and captivate it’s audience with its sound and to invigorate the mind with it’s extreme sculptural aesthetic.

At home in the most demanding recording studios, concert hall monitoring booths or even the Museum of Modern Art, the SIRENS are a radical departure from the original concept of a 3-way box speaker developed early last century. It can be offered in a choice of aluminium anodised, automotive metallic paints, connolly leather or even gold-leaf finishes.

metaxas-sirens-prelude-reference-monitor-speakers-2

Using ideas borrowed from Neumann TLM 50 and M150 microphones, the SIREN embeds the Accuton drivers into spheres mounted onto an organic “time-aligned” sculpture. Despite the unique and unusual shape, the design is a seriously engineered, no-compromise loudspeaker with emphasis on absolute sound quality.

Accuton ultra-low colouration ceramic drivers are used in some of the most expensive systems currently available, but it’s only when you marry them to a curvacious, stiff, inert massive machined “body” that you can really hear – and probably for the first time appreciate, their sheer neutrality and incredible 3-dimensional spatial rendition of a concert performance.

Future proof

In a true ‘bespoke’ manner, the actual configuration of drivers can be chosen, Since there are different ‘levels’ of Accuton ceramic drivers , up to and including their ultra-expensive ‘diamond’ tweeter, the customer has a choice of which tweeter, midrange and 8″ woofer they would prefer to use now, or in the future.

metaxas-sirens-prelude-reference-monitor-speakers-3

Visit the Metaxas website.

Tags: LoudspeakersMetaxas
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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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