Stenheim Alumine Two.Five 2-way Floorstanding Speaker
he all-new Alumine Two.Five is the exciting latest addition to the Alumine range. It is the first floorstander in the line-up and slots between the bookshelf Alumine Two and the floorstanding Alumine Three.
The iconic Alumine Two changed speaker design and redefined what was possible from a bookshelf speaker. It achieved this by combining elements that have served as the basis for every Stenheim speaker since: aluminium cabinets, highly efficient drivers and sophisticated crossovers that are designed to be as unobtrusive as possible. The Alumine Two achieves its astonishing musicality partly by virtue of being a two-way design, the crossover only having to deal with two drivers, the tweeter and the bass. In audio, simplicity is the holy grail but extremely difficult to achieve.
Now the Alumine Two.Five takes these same design concepts and applies them to a floorstanding cabinet for greater internal volume and bass extension. The design is still a two-way, eschewing the compromises that may result from a more complicated crossover required to handle multiple different drivers. The purity and simplicity that created the success of the Alumine Two is maintained, but the double bass drivers ensure room-filling sound in larger spaces whilst giving greater extension in the low frequencies.The easily driven Alumine Two.Five is suitable for a wide range of high-quality amplification and is the ideal partner for even modestly powered systems, such as tube amps, to deliver enthralling music with typical Stenheim clarity, detail and liveliness. It is hand-assembled in our manufacture in Switzerland with quintessential Swiss attention to detail and quality and is designed to perform for decades.
The classically elegant, slim cabinet makes it a beautiful addition to any listening space or living room, complementing any décor, without seeking to be the centre of attention. That is the role performed by the sublime music it produces the moment you hit play.
The Alumine Two.Five is simply beautiful, however you look at it or listen to it.
new Alumine Two.Five
Simply Iconic
The all-new Alumine Two.Five combines the Alumine Two’s elegant simplicity in a floorstanding design offering greater bass extension.
Custom colour options
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Full Black, Ivory or Mocca with black front and rear
Awards
Reviews
Chung-Hao Tao, Audio Art, 2025
“ALUMINE Two.FIVE review AUdio ART: The ultimate choice that unites compact design, high sensitivity, and uncompromising performance.”
“If you want to experience the ultimate sound quality and comprehensive playback dynamics in a limited listening space, the Alumine Two.Five should undoubtedly top your shopping list.”
Dai Tiankai, U-Audio, 2025
“ALUMINE TWO.FIVE REVIEW: U-AUDIO”
“You’ll also grasp why I praise its lively sound and exceptional sense of ambiance, as well as how it can deliver a grand scale that defies its size, even capturing the weight and scale of a grand piano.”
Eric Neff, HiFi+, 2024
“ALUMINE TWO.FIVE: Floorstanding loudspeaker” - HiFi+
“The Alumine Two.Fives are the single best pair of speakers I have ever auditioned in my listening room, regardless of price or system pairing.”
Bruno Castelluzzo, Haute-Fidélité Magazine, 2024
“ALUMINE TWO.FIVE: MIRACULOUS BALANCE” - HAUTE FIDÉLITÉ MAGAZINE (French)
“From Sol Gabetta playing Mendelssohn to Talk Talk in 'The Colour of Spring', the Two.Fives demonstrate their obvious talent for extracting the best from every musical genre. (…) The degree of perfection in all areas of musical performance reaches dizzying heights, and you'll need sources and amplification to match, but they can content themselves with around thirty excellent watts to give their best.”
Piero Gabucci, hometheaterhifi.com, 2024
STENHEIM ALUMINE TWO.FIVE LOUDSPEAKER REVIEW – HOME THEATER HI-FI
“For me, it is gorgeously honest, divinely minimalist, purpose-forward design that is perfectly proportioned for most rooms. I love the look and scale of them in my space. (…) Incredible performance from a modest-sized floor-standing speaker.”
Rik S., 2025
"These speakers actually look quite 'regular,' but they’re really special. They bring together qualities I previously thought were incompatible extremes. They’re small but sound really big — balanced yet outspoken, lively yet quiet. The aluminum makes them feel cold to the touch, but they sound incredibly warm. The sound is light-hearted but also very 'dense' in terms of detail, with sparkling highs that are never harsh."
Owners’ Testimonials
Product Specifications
Type
Passive 2-way floor-standing speaker.
Construction
Front bass-reflex design with a full aluminum enclosure.
Frequency Response
35 Hz – 30 kHz.
Power Handling
125 W RMS, 250 W peak.
Minimum Recommended Amplifier Power
10 W.
Sensitivity
93 dB SPL (2.83 V/1 m), measured in a semi-reverberant room.
Maximum SPL
109 dB.
Nominal Impedance
8 Ω.
Drivers
Two 6.5-inch (17 cm) woofers and one 1-inch (2.6 cm) soft-dome tweeter.
Crossover
Passive 2-way crossover using audiophile-grade components.
Finishes
Metallic Light Grey or Dark Grey with black front and rear panels. Custom Full Black, Ivory, and Mocca finishes are also available.
Floor Spikes
Supplied with a set of precision mounting spikes.
Warranty
5 years.
Dimensions
945 × 230 × 275 mm (H × W × D) / 37.2 × 9 × 10.8 in.
Weight
45 kg each.
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