Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- High sensitivity and easy drivability
- Clean performance, neither sterile nor colorless
- Better at reproducing the spatial information on stereo recordings than the Altec
- Considerably smaller and thus easier to place—and to live with, in an aesthetic sense
Product Considerations
- Less colored than the Altec, with a less peaky lower treble
- Very heavy (231 lbs each), which makes installation difficult
- High price
Comparisons (according to reviewers)
- The Altec loudspeakers were more colored than the Alumine, with a peaky lower treble
Takeaway: The Stenheim Alumine speakers offer a clean and detailed sound in a relatively compact size, while the Alumine Five offers even greater sensitivity in a floorstanding design. If high sensitivity, easy placement (Alumine), and a clean sound are valued, these speakers could be a good fit.
All
Alumine Five LE
reviews

Manufacturer details
- Nominal impedance: 8 Ohms (minimum 3 Ohms)
- Dimensions (Five and Five SE): Width 28cm (11") x Depth 38cm (15") x Height 120cm (47.2")
- Dimensions (Five SX and Five LE with platform): Width 48cm (19") x Depth 38cm (15") x Height 127-130cm (50-51.2")
- Weight (Five and Five SE): 100kg (220.5lbs) each
- Weight (Five SX and LE with platform): 139kg (306lbs) each
- Frequency response: 28Hz to 35kHz
- Sensitivity: 94dB SPL, half space
- Power handling: 200W RMS, 400W Peak
- Minimum recommended power: 20W
- Drivers: 2x 25cm (10") woofers, 1x 16.5cm (6.5") medium driver, 1x 2.6cm (1") soft dome tweeter
The Alumine Five LE is a limited edition of the all-new Alumine Five SX, creating the ultimate Alumine Five. Just 10 pairs are due to be made. 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 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 engin...
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Stenheim designs and manufactures speakers featuring robust aluminum enclosures, achieved through precision CNC machining and internal bracing, to minimize cabinet resonance and maximize internal volume.
- These speakers uniquely combine traditional driver materials like coated silk-dome tweeters and pulp-cone woofers with the modern, high-rigidity aluminum cabinets, providing a balance of warmth, detail, and dynamic expression.
- They are intentionally designed with high sensitivity and a stable impedance, making them relatively easy to drive with a wide range of amplifiers, including low-powered tube amplifiers.
- Stenheim emphasizes a strategic collaboration with driver manufacturers like PHL, allowing them to precisely tailor driver specifications, mechanical characteristics, and surface coatings to meet their desired sonic signature.
Select products
Alumine Three
- Positioning: The compact, high-quality speaker in the Stenheim lineup, offering a more accessible entry point for audiophiles.
- Description: Delivers exceptional sound quality in a compact form, making it ideal for smaller rooms or those seeking portability. It shares core technologies with the Alumine Five, such as high efficiency and aluminum construction, but its smaller size allows for high performance at a lower price point, making it suitable for those with budget constraints or limited space.
Reference Ultime Two
- Positioning: The most compact model in the Reference line, designed for larger spaces and powerful systems.
- Description: Offers deep bass and dynamic sound, ideal for filling large rooms with captivating audio. It features a full d'Appolito design and advanced cabinet construction, providing deeper bass and better transient response than the Alumine series.
Reference Ultime Three
- Positioning: A high-end floorstanding speaker in the Reference line, designed for large spaces and ultimate sound quality.
- Description: Delivers a massive, cohesive soundstage with deep bass and high-frequency clarity, ideal for large rooms and immersive listening experiences. It features a complex driver array and optional active crossover, offering more detailed and authentic sound compared to the Reference Ultime Two.
Statement
- Positioning: The flagship model in the Stenheim lineup, offering the pinnacle of audio performance and design.
- Description: Provides groundbreaking sound rendition with exceptional dynamics and a natural soundstage, suitable for the most discerning audiophiles. It features a complex multi-way system with active crossovers and motorized angle adjustment, offering the most advanced technology and performance in the lineup, making it ideal for those seeking the ultimate in sound quality and willing to invest significantly in their audio system.
Our take on the brand
Look inside the brand
Our interview with the brand
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Used
Stenheim
What if you spend more?
The Reference Ultime Two is the most compact speaker in the Reference line, but it is still considerably bigger than the Alumine Five and built to a different scale. It is designed for larger spaces and to front more powerful systems, to fill big rooms with dynamic, captivating sound that covers the full bandwidth, providing deeper bass than is possible with a smaller cabinet design.
The cabinet is constructed in typical Stenheim fashion. It uses solid aluminium panels over a critically braced, internal chassis, CNC machined from solid billet aluminium. The sheer quantity of aluminium employed is impressive, ensuring that these cabinets are sonically inert and will not flex, no matter how loud the music gets. Beneath the sleek outer panels, each driver is mounted in its own chamber to minimise interference from the others.
Like all the Reference Line models, the Reference Ultime Two is a full d'Appolito design, with a symmetrical driver layout conferring significant sound dispersion advantages. It uses a pair of 30 cm (12-inch) forward-firing woofers to provide deep bass from 25 Hz. Control and bass extension is further enhanced through a pair of rear-facing, laminar flow, reflex ports similar to those used so successfully in the award-winning Alumine Five. These have the advantage of reducing the turbulence that can occur with traditional ported designs giving better transient response which is crucial for reproducing fast and dynamic musical passages. This speed and attack underlies the amazing clarity and dynamism with which Stenheim is synonymous.
The five drivers – two woofers, two midrange and a tweeter - are kept to the minimum, in common with other Stenheim designs, enabling the crossovers to be simpler than they otherwise might be. Nonetheless, they are the fruit of many hours of listening in the development phase and painstakingly designed to ensure that every driver is working in its optimum frequency range. The passive crossovers are constructed from the very finest electrical components available. This is part of the Reference Line brief, to produce the most captivating music irrespective of cost, and allows us to make our component selection without compromise.
The Reference Ultime Two is a room-friendly design that demands considerably less space between it and the rear wall to perform well. Performance in any given room can be optimized by means of the room control back panel. This enables the highs, mids and bass to be individually dialed in, allowing the Reference Ultime Two to be fine-tuned to provide the best possible sound.
Whilst the Reference Ultime Two is an imposing speaker, it possesses a classical slim elegance that enhances multiple décors. It shares the same form factor as its bigger brothers in the Reference Line and the same design philosophy but looks more at home in smaller rooms. Available in the standard colours of Light or Dark Grey, it can also be ordered in the custom colours of Ivory, Mocca, or Full Black. The metal trim parts that visually divide the cabinet can also be ordered in several colours to match the owner's system or furnishings. These can also be retro-fitted should your décor change in the future and you would still like your Reference Ultime Twos to complement it.
Like all Stenheim speakers, it is hand-built to order in our manufacture in Switzerland and is designed to deliver captivating music for decades. The Reference Ultime Two delivers audio performance that honours the musical performance, a listening experience that captures the energy and atmosphere of a live concert and live audience.
Our summary
Product Strengths
- Exceptional build quality
- Good sound quality
- Great value for the money
- Easy to use interface
- Offers connectivity options
Product Considerations
- May not suit all listeners
- No balanced outputs
Takeaway: Overall, a solid product for the price point. It delivers good performance and offers a user-friendly experience.
Video review
Our take on the brand
Our Reference range offers the very best that can be achieved in accuracy and musicality. We are honored that these models are some of the most awarded loudspeakers in the world. They combine advanced materials with cutting edge science and engineering. Designed without compromise, their singular aim is transporting listeners into the heart of the music.
Sonja 3.2 is a true, reference loudspeaker, delivering the life-like, natural sound which is the hallmark of YG. Capable delicate holographic imaging while still recreating concert scale audio, it is one of the very best loudspeakers in the world. With the revolutionary Lattice tweeter, twin BilletCore midrange drivers and our innovative Ultracoherent crossover, it combines an astonishing sonic performance with exceptional engineering and craftsmanship.
The Reference speakers are structured from high-grade aerospace aluminum, machined in-house to an incredible precision. The speakers are meticulously hand-built by experts in our Colorado workshop. The Reference 3 models include new technologies and design innovations based on novel theoretical models, detailed multi-domain simulations and thousands of hours of listening. The end result: loudspeakers which convey every nuance of emotion, each musical cue from the tiniest micro-detail to the visceral impact of the most thunderous crescendo.
An entirely new, hybrid Lattice tweeter uses a novel airframe in a specially-selected aerospace alloy, machined by YG Acoustics. It delivers exceptionally low distortion over a huge bandwidth, with wide angular dispersion to support a large sweet-spot. Groundbreaking, third-generation Ultracoherent crossovers apply a deep understanding from simulation to deliver performance never before possible. Our BilletCore drivers use advanced motors and cones machined in-house from solid billet, offering some of the highest performance and lowest distortion in any driver available today.
Our summary
Product Strengths
- Exceptional build quality using aerospace-grade aluminum
- Creates a holographic soundstage
- Delivers every genre with exceptional clarity and authority
- The design strives to editorialize the signal as little as possible, letting the music flow
Product Considerations
- Substantial investment required
- Considerable weight—145kg per speaker
- Demands thoughtful amplifier matching, requiring a lot of power to shine
- Requires optimal room placement
Takeaway: The YG Acoustics Reference Sonja 3.2 speakers are a masterpiece of acoustic engineering, providing a realistic, precise, and effortless sound experience. If one wants to hear their favorite music at its best, these speakers could be worth the investment.
Video review
Our take on the brand
Starting as a personal side project, the design and breakthroughs we achieved merged into what is now our frontrunner in our speaker portfolio. The initial idea of the project was to design the best possible bass loading module (basshorn aside), to be used with a new horn design we had in the works. The hybrid open baffle / aperiodic bass loading outperformed my expectations, and lead us to push the company design and manufacturing resources to this project, to be our new main speaker offering. This effort resulted to a new diffraction-less midrange horn, as well as our new horn/dipole ribbon tweeter design. Add some crossover technology borrowed from our top speaker the Contendo, and we present to you the Aurora!
Our summary
Product Strengths
- Surprisingly free of horn colorations
- Very rich, present, and neutrally balanced
Product Considerations
- The reviewer was sitting too close to hear them at their best in the small room
- Looking a bit like something the Borg might have invented
Takeaway: The Aries Cerat Aurora Reference is a unique, horn-loaded speaker that sounds surprisingly good. They were considered the most interesting and novel new speaker at the show.
Video review
Our take on the brand
Our Reference range offers the very best that can be achieved in accuracy and musicality. We are honored that these models are some of the most awarded loudspeakers in the world. Designed without compromise, their singular aim is transporting listeners into the heart of the music.
Celebrating the twentieth anniversary of YG Acoustics, XX 3 is a unique product: an ultimate performance loudspeaker that will redefine what you think is possible. Benefitting from the latest in driver and crossover technology, it offers the highest possible sound quality from a single tower design. It is an acoustic, scientific and engineering marvel.
The XX 3 delivers incredible accuracy and realism from the deepest bass to the highest treble: the finest micro-details placed exactly in a broad and deep holographic audio space; unmatched scale and faultless timing. Each channel has our revolutionary Lattice tweeter and seven BilletCore drivers, all driven by our most extreme Ultracoherent crossover.
The Reference 3 models include new technologies and design innovations based on novel theoretical models, detailed multi-domain simulations and thousands of hours of listening. The end result: loudspeakers which convey every nuance of emotion, each musical cue from the tiniest micro-detail to the visceral impact of the most thunderous crescendo.
An entirely new, hybrid Lattice tweeter uses a novel airframe in a specially-selected aerospace alloy, machined by YG Acoustics. It delivers exceptionally low distortion over a huge bandwidth, with wide angular dispersion to support a large sweet-spot.
Groundbreaking, third-generation Ultracoherent crossovers apply a deep understanding from simulation to deliver performance never before possible. Our BilletCore drivers use advanced motors and cones machined in-house from solid billet, offering some of the highest performance and lowest distortion in any driver available today.
Our summary
Product Strengths
- Exceptional build quality
- Incredible bass
- Product is not an inferior DAC to Gordon
- Beats the Blackback at soundstage
- Connectivity options are strong
Product Considerations
- [Pricing complaints removed]
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Unique design where form follows function, resulting in a contemporary and sleek aesthetic
- Incredibly tight, impactful, articulate, and controlled bass response with impressive dynamic power and clarity
- Seamless integration of midrange and tweeter via the M-Array, creating a virtual point source for maximum imaging and soundstage
- Exceptional clarity, transparency, and detail retrieval across the entire frequency spectrum
- Soundstage is incredibly wide, deep, accurate, and immersive with instruments placed precisely in a three-dimensional field
Product Considerations
- Significant power from amplifiers is required to perform optimally, with recommendations ranging from 200 to 1600 watts RMS
- The Hyphn is a large and heavy speaker, needing a decent-sized room and strong flooring
- Sensitivity is rated at 86 dB, which is considered low and necessitates high-power amplification
Comparisons (according to reviewers)
- Vs Sonus Faber: Hyphn has a far more forward-sounding presentation compared to the more relaxed and recessed soundstage of Sonus Faber
- Vs JBL Everest DD67000: Hyphn's bass is not as 'huge' as some monster high-end speakers like JBL's Everest, but it is tighter and more tuneful
Takeaway: Monitor Audio's Hyphn is a state-of-the-art loudspeaker with a unique design, delivering exceptional clarity, deep bass, and a wide soundstage. If unrestrained performance and a forward-looking aesthetic are desired, the Hyphn is worth considering for an immersive listening experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Impressive midbass solidity
- Remarkable fidelity at lower volumes due to the alacrity of its drivers
- Comprehensive and dynamic sound signature with plenty of detail and clarity
- The newly developed tweeter allows for faster response and a frequency range that easily extends to 28,000Hz
- Features a modular design, offering flexibility with passive, iTron active, and all-in-one wireless streaming versions
Product Considerations
- Integrating the Spacehorn subwoofers requires careful alignment
- High-quality source components are needed to match its performance level
- Some reviewers found that the iTron amplification did not produce the requisite bloom and musicality for classical and jazz music
Takeaway: The Avantgarde Trio G3 speaker is a top-tier audio system known for its exceptional sound reproduction and flexibility with different configurations. If you appreciate high-quality audio performance and aesthetics and want a sound system that sounds exciting and sophisticated, it is an excellent option.
Video review
Our take on the brand
Our Summary
Product Strengths
- An all-encompassing sound keeps listeners rooted to their seats
- A unique 360° sound wave design creates a natural balance of direct and reflected sounds
- A truly huge, yet meticulously crafted, soundscape is created
- Not physically evident in the aural landscape, offering a sound that seems to have no origin
- Integration of the woofer's and melon's outputs was far smoother than previous models
Product Considerations
- High-powered amplifiers capable of delivering ample amounts of current are required due to its insensitivity (around 80dB)
- Placement can be tricky, needing more space away from room boundaries than some rooms can provide
- The biggest problem has always been the audible lack of seamless integration between the bass box and the stack of omnis atop it
- A 'chesty, compressed, almost grainy midbass coloration' can be exhibited if placement and other factors are not optimized
Takeaway: The MBL Radialstrahler 101 E MkII loudspeaker offers a distinctive and immersive listening experience thanks to its unique omnidirectional design. It can fill the room with a natural and balanced sound, creating a captivating musical soundscape for the listener.
Video review
Our take on the brand
Our Summary
Product Strengths
- Upgradable from older Model 7 versions, representing long-term value for owners
- Features a 'CounterForce Bass' system with opposing woofers to minimize cabinet movement and improve clarity
- Offers extensive bass adjustments for room integration, including 11 trim pots for precise frequency adjustments
- Time-and-phase coherent design ensures that all drivers move in unison
- Provides a relaxed ease and warmth that fosters musical engagement
Product Considerations
- Sensitivity is relatively low at 85dB, requiring a powerful amplifier to achieve its full potential
- Requires careful rake angle adjustment for optimal performance
- Bi-wire capable, the mandatory HP-7 filter costs extra
Comparisons (according to reviewers)
- Vs KEF KC-62 subwoofer: Both use counter-opposing force woofers to stop cabinet movement
Takeaway: The Model Seven XTRM is a technologically innovative speaker designed for music lovers. It offers powerful bass, harmonic beauty, and exceptional tonal realism, making it a worthwhile investment for those seeking a high-fidelity audio experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Superb resolution, incredible mid/low synchronicity, and uncanny bass extension
- Phenomenal, tight, and fast bass, playing below 15Hz
- Great balance, detail, and articulation at every volume level
- Amazing imaging and natural space in the soundstage
- DSP9 is easy to install and place in a room, due to the DSP controls available
Product Considerations
- At £60,000 per pair, the DSP9 is still expensive
- Fairly generous footprint
- Finishes other than piano gloss black are available at a premium depending on cost and complexity
Comparisons (according to reviewers)
- Vs Meridian DSP8000 XE: DSP9 is smaller, lighter and more svelte, but aims to offer equally top-line performance
Takeaway: The Meridian Audio DSP9 is a sensational loudspeaker with amazing imaging, natural space, and incredibly tight bass, suitable for various music genres and volume levels. The active configuration, design, and range of finishes make it a strong proposition for premium installations.
Video review
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