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.
All
Naked RS Limited Edition
reviews
Manufacturer details
- Woofers: 2 x 12" Acoustic Elegance (custom made)
- Midrange: 1 magneto-planar (custom made)
- Tweeter: 1 Mundorf ribbon
- Feet: 0.5 carat diamond
- Sensitivity: 89 dB
- Nominal Impedance: 4 Ohm (minimum 3 Ohm)
- Frequency Response: 22-35,000 Hz (+/-3 dB, 1 mt)
- Dimensions (HxWxD): 1550 x 470 x 660 mm
- Weight: 90 kg (each)
- Boxed Weight: 140 kg (each)
• Acoustic Elegance woofers
• Crossover reengineering to manage a double coil woofer like AE
• Top Mundorf components
• Top Mundorf cabling
• 0,5 carat diamond feet instead of 0,35
The RS model is extremely more complex and requires double the manufacturing time not to forget all the tests that were needed to manage a significative improvement to the Naked speaker that was already blowing out of the water many speakers at double or triple the price… at these levels every little atom of performance costs huge efforts and investments.
From the sound performance standpoint, the RS is even deeper than the Naked on bass, now truly earthquake-like. It is even more prompt on music raise, energy is even higher. Timbrically speaking we perceive a general improvement again due to the better performance on bass notes that is reflected on the other frequency ranges, everything is even more clean and transparent, listening fatigue was already minimal on Naked even better on the RS.
Aerospace aluminium and military grade CNC machining precision. Proprietary laboratory grade anti-vibration structure, torque wrench precision joints tightening (first ever usage to control the resonances...
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:
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Our take on the brand
The Grand Reference loudspeakers embody and advance the groundbreaking principles initially introduced in IO Design’s Naked speaker concept, pushing technological boundaries and utilizing the highest-quality materials available. Unlike traditional boxed or dipole speaker systems—which inherently produce distortions, compression, and energy loss—IO Design's approach achieves extraordinarily low distortion, minimal interference, and an even distribution of energy across the entire audio spectrum.
The core objective of IO Design is to replicate the immersive energy and emotional impact of a live musical performance within a home environment. Their speakers generate authentic acoustic presence, faithfully capturing dynamics, micro-dynamics, and harmonic nuances, thereby bridging the gap between live sound and home audio reproduction.
IO Design’s meticulous engineering ensures consistent sound pressure at any listening position, maintaining purity, clarity, and naturalness of sound without compromising dynamics or detail. The result is a truly immersive and emotionally compelling listening experience, distinctly superior to conventional speaker designs.
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Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
The concept itself, we are the first and (as of today the only ones) able to produce huge bass and devastating energy in the room with a dipole/baffleless architecture. Design is a factor, crossover another pillar, vibration control and many other points. Every mm2 in the speaker is discussed to the bone always for improvements. Our aim is a formula 1 car no other point than performance, design and crafting.
What's your approach to customer support?
We have distributors and dealers in some countries already and we are evaluating new ones. Being IO Design dealer/distributor is a mission because you are not selling normal hi-end loudspeakers but truly F1 devices. The network will hopefully grow, in the meanwhile, where we don't have dealers, we manage the customers directly or, even better, we ask the Customer to put his dealer in contact with us to make him safe and easy.
If a Customer needs setup advise, we follow up analyzing also the acoustics if needed. Should any tech issue happen, we would support the dealer with parts and repair advise or we would ship back the units for check and fixing.
What are your favorite tracks for showcasing the strength of your products?
It depends from system to system and ambient to ambient. We always choose the more extreme quality tracks to show the true potential of the speakers because it's way above the current competition. Usually we prefer tracks where bass is very evident because it is a strong point (even if it might seem counter intuitive for a baffleless design). Also high transients, because the energy the speakers pushes in the room is much higher than anything else on the market.
What other products pair best with yours?
Any high quality amplification works, digital, tubes, solid state. The important is that the amp has control and current, watts are not so important, even 40-60 can do but the quality of the amp need to be xcellent to get profit of the shocking realism of IO Design speakers. Ypsilon Electronics is well tested for instance. Tubes also perform well, however they are usually a bit more euphonic on bass and they have more distortion; this is a pity because IO Design speakers are so clean and distortion free... In normal boxed speakers you don't notice, because those speakers are themselves distorting music with the box compressions...
What if you spend more?
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Our summary
Product Strengths
- Elegant design with slim aluminum housings
- High-quality transducer technology
- Remarkable flexibility in feed options, including wireless
- Precise and controlled reproduction with highest impulse fidelity due to closed construction and DSP linearisation
- Room calibration ensures detailed, dynamically balanced, and natural sound even with imperfect room acoustics
Takeaway: The Piega Premium Wireless Series Gen2 offers a simple way to create a modern, premium hifi system. It provides high sound quality without sacrificing much space, offering all the functions expected from a modern hifi setup.
Video review
Our take on the brand
Our summary
Product Strengths
- Very clean sound, precise imaging qualities, and unfatiguing
- Incredibly fast, open and well-resolved after a few days of use
- Superb driver integration, and temporally and tonally coherent across a wide range of music
- Full, deep and well-controlled bass
- Resolving powers that provide detail and information
Product Considerations
- At 45kg each, unpacking and locating them was not easy
- The outrigger feet are £450 per speaker
- The cost is £14900
Comparisons (according to reviewers)
- The larger Piega Coax Gen2 811 retails for £26400, and it shares many of the features of the 611—but it has a larger cabinet and bass drivers
Takeaway: The Piega Coax Gen2 611 is an impressive speaker with speed, accurate timing, and excellent imaging. It provides detailed yet powerful sound, making it a great choice for an end-game speaker in the average UK listening space.
Video review
Our take on the brand
The Børresen X series loudspeakers are not only a new entry-level into the Børresen universe, but also represents a real revolution in quality and performance in its price range. These speakers are created based on all the knowledge collected in the process of the creation of the M, 0 and Z-series. You´ll find components from these exclusive series in this Børresen X series loudspeakers – for instance the brand new Spread-tow carbon membrane, the highly praised Børresen ribbon tweeter and the use of copper caps in the magnetic motor system.
The X-series membrane that consists of three skins laminated into a single unit: two layers of spread carbon fiber, with a layer of aramid honeycomb spacers in between. The combination of these materials gives this membrane its unique properties. The spread-tow carbon fiber was designed to provide a skin with optimal stiffness. This unique feature of the membrane reduces sound-disturbing vibrations and resonances to unprecedented levels.
In the X-series magnet motor system, we use double copper caps on the pole rings to achieve high flux and low inductance. The use of copper caps has been adopted from the Børresen Z-series. Copper produces a response to flux changes – the better the counter-effect of these copper rings, the flatter the inductance curve, and the lower the electro-magnetic resonance.
The tweeter chosen for the Børresen X-series has the same design used in all other Børresen loudspeaker series. However, there is a reduction in magnet and iron mass. This is possible due to the extremely high efficiency of the original tweeter design. As a result, the efficiency has dropped only slightly from the exceptional 94 dB to 90 dB, but this is still an amazing efficiency for a tweeter.
The Børresen X-series is equipped with a parallel crossover built with the same high-quality components from the Z Series. This makes for a very mechanically stable crossover that minimizes its self-resonance.
The surface of the cabinet is finished in black or white piano lacquer and reinforced with carbon fiber inserts. The cabinet is made of a heavily braced wood composite material that has the property of eliminating sound distortion. The material used for the cabinet also reduces mechanical influences, especially hysteresis. The sonic result is clearly audible. The X-series is equipped with bass reflex ports. The tweeter is vented to compensate for the air pressure that builds up. The bass section consists of tuned ports calibrated for musically relevant frequencies.
Our summary
Product Strengths
- Exceptional imaging and soundstage.
- Detailed high-frequency reproduction.
- Tight and accurate bass.
- Elegant design and high-quality build.
- Good value for the price.
Product Considerations
- Midrange response may have a 'hole' or 'scoop'.
- Sweet spot is narrow.
- Amplifier matching benefits from good current delivery.
- Positioning requires careful attention.
- Speakers are only available in black or white.
Comparisons (according to reviewers)
- Vs GoldenEar Technology T66—the X3's tweeter is in 'a whole other class of high-frequency reproduction'.
- Vs PureAudioProject Duet 15s—the X3 was faster, clearer, and had better transient response.
- Vs KEF Reference 3 Meta—the X3 seems like a faster, clearer, more transparent speaker.
- Vs Audiovector R3—the X3 has more pronounced and deeper bass.
- Vs Audiovector R6—the R6 offers more visceral dynamics and seems to go lower.
Takeaway: The Børresen X3 is a well-built and visually appealing loudspeaker known for its exceptional imaging, detailed highs, and refined sound. It is a compelling option for those seeking a high-performance speaker in its price range.
Video review
Our take on the brand
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The Estelon AURA loudspeaker is designed and constructed by taking into consideration the environmental acoustics of real-life listening spaces. It provides an immersive and captivating audio experience like no other among speakers of this size. To achieve this, AURA has been designed with meticulous attention to detail, incorporating cutting-edge technology and unique features that set it apart from other loudspeakers in the market. The AURA is more than just a loudspeaker; it's a work of art that combines form and function to provide an unparalleled audio experience. With its unique design and advanced technology, AURA is sure to be a game-changer in the audio world.
Our summary
Product Strengths
- Striking aesthetic design is repeatedly praised, seamlessly blending into living spaces
- Exceptional soundstage and imaging are consistently highlighted as standout features
- Balanced presentation across the frequency range offers a smooth integration of bass, midrange, and treble
- Well-controlled and detailed bass integrates well with the other drivers
- Clear and detailed midrange and treble contribute to a fast presentation of vocals and instruments
- Connectivity options are solid
Product Considerations
- The Aura's impedance can drop to a low 2 ohms at 58 Hz, making it a demanding load for amplifiers
- Bass output may not suit all tastes, particularly those who prefer bass-heavy music or have larger rooms
- System matching with warmer components may be necessary to achieve a preferred sound balance
- The placement of the binding posts and the tight space around them are a bit challenging when connecting speaker cables
Comparisons (according to reviewers)
- Compared to SVS Titans, the Aura is a clear step up in clarity and transparency, but the Titans deliver more bass output
- Compared to YG Acoustics Peaks Ascent, the AURA speaker has a very different frequency profile
Takeaway: The Estelon Aura speakers combine striking aesthetics with high-end sound, offering a balanced and engaging listening experience that works well in various rooms. They are a strong contender for audiophiles seeking a speaker that is both visually appealing and sonically refined.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- The aluminum cabinet is cast in one piece, which offers acoustic advantages and looks chic
- The extruded aluminum yields a seamless, curved cabinet, which minimizes standing waves, reduces diffraction, and distributes and controls reflections
- Highs are provided by a ribbon tweeter designed by PIEGA, and made by hand at the company's factory
- It creates an incredibly wide soundstage, always balanced and rich
- They are big enough to make big sound, but small enough to be suitable for a small apartment
Product Considerations
- The fit and finish of the small, square, lightweight Connect is basic—in sharp contrast with the stylish, substantial 701 loudspeakers
- DSP automatically adjusts each speaker's frequency balance according to volume, at a low setting, bass and treble are subtly boosted while, with something closer to party levels, the bass is gently reined in to prevent driver overload
- The Android version won't 'read the room' and only lets one turn the room correction on and off
Comparisons (according to reviewers)
- Vs KEF R3 Meta: it gives a cleaner sounding mid-range and better top-end extension
- Vs Buchardt A700: pairing the speakers to its black box comes with fewer connection hassles
- Vs KEF LS60 wireless: it draws a wider soundstage, better image in the mids, and offers a more extended top end
Takeaway: The PIEGA Premium recMsY5ljWopDD7UU is a stylish speaker that offers a wide soundstage and a rich listening experience. Its modern design and high-quality build make it a great addition to any contemporary living space.
Video review
Our take on the brand
Our Summary
Product Strengths
- Striking, sleek, and modern design that complements modern interiors
- Incorporates KEF's Uni-Q driver array and Metamaterial Absorption Technology (MAT) for neutral, open, detailed sound, reducing unwanted sound from the rear of the tweeter
- Includes Uni-Core force-canceling woofers that reduce cabinet vibrations, contributing to balanced and detailed bass
- The KEF Connect app allows for adjustments to fit the listening environment
- Offers high connectivity and is a true stand-alone system
Product Considerations
- Bass can be a bit too much out of the box, requiring adjustments via the app or placement considerations
- Not well-suited for those who have many signal sources to connect to
- Some reviewers found the bass lacked definition in the upper bass, with unclear instrument placement, even after adjusting EQ settings
- The included remote control is considered basic or cheap
- Mandatory online registration and administrator-level internet connection requirements for the app may be a drawback for privacy-conscious users
Comparisons (according to reviewers)
- Compared to the Bang & Olufsen Beolab 28, the LS60 Wireless can achieve similar sound quality with adjustments, at a lower price point, although the Beolab 28 sounds 'more right' straight out of the factory
- Compared to the KEF LS50 Wireless II, the LS60 Wireless is preferred stylistically, achieves near full-range playback, and has a more slim design, although it costs more and also provides much deeper bass
- Compared to the Q Acoustics Active 400 Towers, the LS60 Wireless has no issues with products not working
Takeaway: The KEF LS60 Wireless are stylish, all-in-one speakers that deliver a balanced, detailed sound with advanced technology. They are a convenient, high-performing solution for those seeking a streamlined audio setup.
Video review
Our take on the brand
Our Summary
Product Strengths
- Superb design and build quality.
- Articulate sound, especially in the upper midrange and treble regions.
- Very good imaging, with strong definition and delineation between instruments and performers.
- Vivid and clear midrange, revealing subtle details in recordings.
- Transparency ensures more of the music is heard as it was intended.
Product Considerations
- A capable amplifier is needed due to impedance dips to 3.1 ohms.
- Not a bass-heavy speaker.
- The tweeter can become too much if listening to poorly recorded music or at very high volumes.
- The bass can sound a bit thin, depending on room size and personal preference.
- Can sound a little bit cool when playing certain types of music.
Comparisons (according to reviewers)
- Vs KEF R11 Meta—KEFs presented more physical scale with respect to soundstage, with even greater width.
- Vs Polk R700 and Klipsch RP8000F Mk2—Not better than the B&Ws, but aren't embarrassed by them either.
- Vs B&W 805 D IV—In one listening room, the 703 is nearly as good.
- Zoo sound a little bit warmer.
Takeaway: The 703 S3 makes listening engaging and fun, with dynamic sound suitable for both music and movies. It brings clarity to vocals, especially at lower volumes, making it great for late-night listening.
Video review
Our take on the brand
Our Summary
Product Strengths
- Trickle-down technology from the 800 series narrows the gap with higher-end models
- Improved clarity of details, accuracy, and soundstage width compared to previous 702 models
- Clean and articulate bass is often attributed to the downward-firing port and plinth arrangement
- Excellent imaging and soundfield, with impressive width and height
- Delivers high definition and low coloration, offering a taste of the 800 Series experience
Product Considerations
- Careful positioning is required to achieve optimal tonal balance and musicality
- A reasonably powerful amplifier (minimum 75W recommended) is needed to perform at its best
- May not be a great match for valve amplifiers, preferring solid-state options
- The satin black MDF plinths are integral and require additional floor space
- Difficult to move around due to their weight (over 40 kg each) and lack of handholds
Comparisons (according to reviewers)
- Compared to the 702 S2 and 702 Signature, the S3 has improved clarity, accuracy, and soundstage width
- Compared to the Focal Aria 936 K2, the reviewer prefers the aesthetics of the 702 S3
Takeaway: The 702 S3 is a well-built loudspeaker offering a significant upgrade in sound quality. Trickle-down technology gives a taste of Bowers & Wilkins' flagship series at a more affordable price.
Video review
Our take on the brand
Our Summary
Product Strengths
- Excellent sound quality, with reviews noting neutral and balanced sound, meticulous detail retrieval, and delicate micro-dynamics
- Good imaging and soundstage, with the ability to create a wide and immersive soundstage with precise imaging
- Sleek design, with their elegance and ability to complement modern interiors
- Powerful and well-controlled bass, thanks to the Uni-Core driver technology
- Wide array of connectivity options, including HDMI eARC, optical, coaxial, RCA, Ethernet, Wi-Fi, AirPlay 2, Google Chromecast, Spotify Connect, Tidal Connect, Amazon Music, Deezer, and Qobuz
Product Considerations
- Relatively expensive compared to other active speaker systems
- Some reviewers noted occasional signal dropouts between the primary and secondary speakers when connected wirelessly
- The KEF Connect app is essential for full functionality and optimal setup, which may not appeal to users who prefer physical controls
- Bass output can be sensitive to room placement and may require adjustments to avoid boominess
- Connecting multiple external devices can result in significant cable clutter, despite being marketed as wireless
Comparisons (according to reviewers)
- Vs Bang & Olufsen Beolab 28: The LS60 offers comparable performance at roughly half the price, though the Beolab 28 is noted as sounding better out-of-the-box without EQ
- Vs KEF LS50 Wireless II: The LS60 offers improved performance and near full-range playback, but at a higher price, the LS50 Wireless II offers similar clarity with a slightly warmer sound
- Vs Klipsch Forte 4: The LS60 is more suited for home theater use and surface more detail
- Vs Q Acoustics Q Active 400 Towers, Dali Oberon 7C Wireless, and Bowers & Wilkins Formation Duos: The LS60 is considered a better, more refined and adjustable package
- Vs Hegel H190 & KEF LS50 Meta with KEF KC-62 Subwoofer: The LS60 communicates the forward force of music better and has features such as Tidal Connect and room EQ
- Vs Lindemann TD-AI1120, KEF LS50 Meta & KEF KC-62 Subwoofer: The LS60 cannot be matched in scale and effortless dynamics
Takeaway: The KEF LS60 Wireless is a fantastic, all-in-one speaker system that sounds great and looks stylish. They are easy to set up and use, and will fill a room with music for years to come.
Video review
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