Alumine Five
Alumine Five SX & LE
In 2024, Stenheim introduced its new Alumine Five Platform for the Alumine Five models. This elegant aluminium plinth is machined from solid aluminium and achieves the same effect as the Reference Platform developed for the Reference series, increasing stability and making fine-tuning the set-up far simpler. The spikes are easily adjusted with an allen key from above, enabling the precise height and rake of the platform to be dialed in. Different sets of spike ends can be selected to suit different floor types, from delicate wood to deep carpet. Sound is also improved thanks to the superior vibration damping that the Alumine Five Platform offers. The Platform can be retrofitted to any Alumine Five.
The Alumine Five SX is derived from the award-winning Alumine Five SE, itself a version of the Alumine Five with increased specification including top of the range crossover components, binding posts from the Reference range and enhanced internal wiring. The Alumine Five SX is additionally equipped with a room control panel at the rear, a feature originally seen on the Reference Ultime Two model, which enables different bass-treble profiles to be selected to adjust for room acoustics. Sound quality is yet further enhanced by a new chassis connector which allows the speaker to be connected to a third-party virtual grounding system. The anodized tweeter horn can be ordered to match the side bars in gold, silver, red or black. An embroidered leather top baffle is available as an option.
This phenomenal speaker is then set upon the Alumine Five platform to complete the Alumine Five SX package. For the ultimate Alumine Five, the Alumine Five LE is a limited edition of the Alumine Five SX, produced in a single run of only 10 pairs. Over and above the Five SX’s impressive specifications, the Five LE model boasts some luxury cosmetic appointments. Only available in Full Black, its tweeter horn, side bars, platform details and spike covers are gilded in gold leaf. The top front baffle is covered in leather with a gold embroidered Stenheim logo. The rear baffle is adorned with a Stenheim emblem. An optional three-part flight case is available.
Like all Stenheim speakers, the Alumine Five SX and Alumine Five LE are designed and hand-built to order in Switzerland. They are a 3-way design featuring crossovers engineered with the finest quality components from boutique suppliers such as Mundorf and Jantzen and are equipped with highly efficient custom-built drivers (94 dB) enabling a wide variety of amplification to be used. The Five SX and Five LE models are a further step in Stenheim’s mission of providing the ultimate in loudspeaker performance for discerning music lovers and top the Alumine range.
Technical Specifications
- Passive 3-way floor-standing speakers
- 2x 25cm (10”) woofers, 1x 16.5cm (6.5”) medium driver, 1x 2.6cm (1”) soft dome tweeter
- Front laminar port bass reflex design
- Full aluminium construction
- 4 independent chambers
- Phase coherent crossover employing high grade, audiophile components
- Frequency response: 28Hz to 35kHz
- Sensivity: 94dB SPL, half space
- Power handling : 200W RMS, 400W Peak
- Minimum recommended power: 20W
- Nominal impedance: 8 Ohms (minimum 3 Ohms)
- Dimensions: Width 28cm (11”) x Depth 38cm (15”) x Height 120cm (47.2”)
- Weight: 100kg (220.5lbs) each
- Available in metallic Light Grey or Dark Grey with black front and rear
- Extended Warranty: 5 years (by registration)
Custom options
- Full Black, Ivory or Mocca with black front and rear
- Special Edition SE available with upgraded, ultimate components - crossover, internal wiring and Reference binding posts allowing bi-wiring
- Special Edition SX available as SE with solid billet aluminium platform, room control panel, grounding post, and anodised tweeter horn
- Limited Edition LE available as Five SX but exclusively in Full Black with gold-leaf gilded tweeter horn, sidebars and platform detail, leather front baffle, and Stenheim emblem on the rear. Limited to 10 pairs only.
Press reviews
“ALUMINE FIVE SX TEST: HIFISTATEMENT
“Its captivating dynamics, infectious enthusiasm for playing, and well-defined, rich, and incredibly lively bass surprised me at first and then truly impressed me. At Stenheim, the joy of listening to music comes first!”
Dirk Sommer, Hifistatement, 2025
Full Review (English)Full REVIEW (German)
“Alumine Five SX REVIEW: Heavy Metal! - GY8 BLOg
“The Alumine 5 and its SE version were speakers that could and would grow with your system and your musical ambitions. The A5-SX takes that further still. This is a speaker whose sheer musical insight won’t just grow with you, it will help you grow, expanding your access and your horizons. Perhaps it’s just as well that the Alumine 5-SX looks so different and distinctive: its performance certainly is!”
Roy Gregory, GY8 Blog, 2025
READ FULL REVIEW“Alumine Five Se: ONE FOR THE AGES” - The absolute sound magazine
“The Stenheim Five SE is not just a great speaker; it is one of high-end audio’s greatest speakers. Its ability to generate truly deep, linear, powerful bass, unusually rich and lifelike tone color, near-visible three-dimensional images, and astounding detail and dynamics from such a modest enclosure is not just a surprise; it is one for the ages.”
Jonathan Valin, The Absolute Sound magazine, 2022
READ FULL REVIEWGolden ear AWARD 2022
Golden EAR Award 2023
“Alumine Five Se : swiss PRODIGIES” - haute fidélité magazine
“The Alumine FIVE SE set the bar for high-fidelity incredibly high, whether than be in terms of definition, inexhaustible dynamics, the extraordinary variety of nuances or the realism of the sound stage, but in a perfect fusion of these elements that has almost never been heard before in this format. Taking a completely classic approach, their qualities do justice to the emotion and the natural energy of the music, creating special moments with an extraordinary talent. These indispensable loudspeakers free the musical energy of the very best recordings with panache: they are true prodigies!”
Bruno Castelluzzo, Haute-Fidélité Magazine, 2022
READ FULL REVIEWRead English translation
Owners’ Testimonials
"The Alumine Five SX delivers all the tone, dynamics, and soundstage I enjoy, while retaining the resolution and nuance of a high-end transducer. It's a very special speaker that brings an incredible natural flow to music of all genres. The SX version adds a wonderful weight to the bass and has exceeded my expectations with top-notch build quality; I look forward to enjoying it for years."
Keith R. 2026
