Basel Acoustics V01

by Dawid Grzyb / April 4, 2026

The Basel Acoustics V01 is a floorstanding speaker that marks the debut of a newcomer brand with Polish and Swiss roots. That’s our subject this time around. Enjoy!

Co-citizen

To say that Boenicke Audio is no stranger to these pages would be an understatement I can safely apply to many audio outfits I’ve dealt with over the years. This particular Swiss audio house founded by Sven Boenicke, however, holds a very special spot in my personal roster. Since the very beginning of HifiKnights, I’ve had the pleasure of reviewing ten products under that banner. I also visited Sven’s Basel-based HQ twice and factory once, which provided valuable insight into how his ideas materialize into actual hardware. Knowing him well, I also have a clear understanding of why he does what he does. Most importantly though, I know his entire portfolio inside out and rely on several of his efforts in my daily work. My main system includes the S3 speaker cables, IC3 CG RCA interconnects, ComDev speaker sorter, PowerGate outlet multiplier and W11 SE+ floorstanders, while my home setup relies on W5 monitors. If that doesn’t qualify as fanboy territory, I’m not sure what does, although in this case that familiarity comes from long-term exposure rather than blind admiration.Today’s story, however, narrows down to Sven’s core expertise as a speaker designer, which is very much relevant for today’s subject. My personal journey with his loudspeakers started with the W5 monitor, my first serious expense in this field and the one that effectively set the tone for everything that followed. That compact design served me faithfully for roughly six years without ever giving me a compelling reason to look elsewhere. In 2020 it evolved into the second-generation W5 with an updated wideband driver, which still operates in my home nearfield setup that I use for many hours every single day. A year prior to launching HFK, and at a time when my system was already taking shape, I also invested in the W8 model, which remained my measuring stick in the full-sized speaker territory for about six years. That chapter eventually led to the W11 SE+ floorstanders—my only big speakers to date and primary reference point, one that has proven stubbornly resistant to dethroning both in technical performance and long-term satisfaction. The fact that it looks awesome and carries Sven’s signature only strengthens its case.

If money were no object and I had to name one speaker below the seven-figure mark that I’d genuinely want to own, Sven’s W22 flagship would be an easy pick. My exposure to this unapologetically unconventional design during a visit to his facility in late 2023, where I had the chance to listen to it extensively with my own music in complete solitude, quickly placed it at the very top of my mental leaderboard. Subsequent encounters at Munich shows only cemented that impression and confirmed that initial assessment was no accident. While I’m fully aware that perfection in loudspeakers doesn’t exist, the W22 came dangerously close to that ideal in a way very few speakers I’ve encountered ever have. Granted, acquiring a pair would likely require liquidating several non-essential internal organs, but the idea of building a system around it remains very much alive—and surprisingly persistent.That flagship wasn’t mentioned by accident and its relevance will become clear shortly. Before we get there, let’s rewind to 2015 when I proudly financed my W8 through Sven’s local dealer, Piotr Misiewicz. While the Swiss designer might appear as the central figure here, this is very much Piotr’s story. Back then he was Boenicke Audio’s representative in Poland and, quite unusually, focused solely on that single speaker brand—something that, at the time, struck me as both bold and slightly irrational. In an industry where distributors typically diversify to hedge their bets, such dedication is rarely seen and even more rarely sustained. As it turned out, it was neither misguided nor accidental. Over time, Piotr and Sven developed a strong professional synergy that led to the former becoming Boenicke Audio’s CEO in 2015. That arrangement allowed Sven to double down on what he does best—designing delightfully unorthodox audio gear—while Piotr steered the company’s broader direction with a firm and clearly defined vision. Still, his ambitions extended beyond managing someone else’s brand.

During one of our conversations, Piotr entertained the idea of launching a speaker brand of his own, not as a side project but as a fully realized effort. For that to happen you either need to be an audio engineer yourself or have access to one willing to do all the heavy lifting. By now it should be quite clear that Piotr had exactly that in Sven—one of the most gifted speaker designers I’ve had the pleasure of knowing, backed by a complete production and assembly infrastructure. The pieces clicked into place rather naturally, and once they did, the direction forward seemed almost inevitable.In 2020 Piotr stepped down as Boenicke’s CEO and, with Sven’s assistance, focused on having his own audio brand up and running. Fast forward to High End Munich 2024, when that vision not only had a face, but also a name—Basel Acoustics. While new, it arrived backed by Swiss pedigree and Sven’s direct involvement, which in this business translates to a level of credibility that most newcomers can only dream of. Its debut product, the V01 floorstander, was proudly presented in the familiar Boenicke room right next to the W22 and extensively used throughout the event. Although I didn’t manage to sit down for a proper listen at the time—reviewer duties have a way of derailing even the best plans—I could easily tell that the general audience response was notably enthusiastic. A brief chat with Piotr confirmed that at some point his V01 was to appear at my doorstep. I just had to wait for that moment to arrive. Last time I checked, patience was a virtue and rewarding mistress. That time is now. I can already say that the Basel Acoustics V01 is a thoroughly intriguing design that brings a lot to the table. Most importantly, it’s not a Boenicke clone—it confidently carves out its own identity. And that, as it turns out, is where things get interesting.

The Basel Acoustics V01 arrived in a rather imposing fashion. Two individual cardboard boxes—one per speaker—were stacked atop each other and secured to a pallet, which at first glance suggested a job for two and a bit of planning. These cartons were suspiciously large, particularly in depth, and it didn’t take long to understand why. Despite that initially intimidating presentation, the entire unpacking process turned out to be surprisingly manageable. Each box was light enough to be carried from the building’s entrance to my listening room without assistance, and extracting the speakers from their double-layered packaging proved equally straightforward. Once inside, it was merely a matter of removing the foam liners and protective cloth bags, after which the V01 was ready for action.On paper, the V01 reads as a fairly compact floorstander, though its proportions tell only part of the story. Each speaker stands 105 cm tall, measures just over 16 cm in width and stretches to a rather generous 39 cm in depth, which explains those unusually large shipping cartons. Weight is a manageable 30 kg per unit, while electrical specs appear refreshingly sensible at first glance: nominal impedance is set at 6 Ω and sensitivity falls between 87 and 90 dB depending on frequency. In practice, however, the V01 is no easy load and behaves much like other designs by Sven Boenicke. As such, it clearly values control and proper current delivery above all else, but more on that later. Moving on, the declared bandwidth spans from 27 Hz to 25 kHz, with a bass reflex alignment tuned to the lower limit. The architecture itself is described as a two-way system supplemented by a rear ambient tweeter, with crossover points set at 1500 and 6000 Hz and implemented via a minimalist first-order network. The V01 retails for €13’490 per pair in Europe, which is not shocking considering it’s made in Switzerland. It’s also available in any finish you like, as long as it’s white pigmented ash or black oak.

Once freed from its packaging, the V01 quickly reveals why those dimensions matter. This is not a visually shy loudspeaker. Its footprint is slim and elegant, but the depth and the distinctive top-mounted horn assembly give it a presence that’s hard to ignore. It doesn’t mimic the familiar Boenicke Audio aesthetic either. While Sven’s speakers are known for their gently tilted, ultra-slim enclosures with rounded, flowing edges, the V01 comes across as more grounded, more angular and, for lack of a better word, a bit chubbier. The visual execution clearly follows a different script—less organic sculpture, more deliberate contrast between retro cues and contemporary minimalism. The fabric-clad front, held in place magnetically, introduces a subtle 60s vibe, while the aluminium front baffle and the horn assembly on top keep things firmly anchored in the present. On fit and finish, this is a fully mature effort executed to a very high standard. Tolerances are tight, the woodwork is excellent and a sense of luxury permeates the entire package. It’s the kind of design that doesn’t demand attention outright, yet once noticed, tends to hold it. There’s more to this newcomer than that and, on a somewhat subjective note, I’ve come to appreciate its looks. While it didn’t impress me instantly, that changed over the course of several days.Behind that tidy, tastefully executed exterior sits a construction that is anything but conventional. Instead of the two-part wooden shell typical for Boenicke Audio designs, the V01 employs a three-layer solid wood cabinet with varying wall thicknesses. It’s pigmented, oiled and internally reinforced by a network of slotted wooden and cardboard tubes, the latter partially open and filled with insulating wool so as not to reduce the enclosure’s internal volume. This admittedly low-cost solution is anything but crude—it stiffens the housing and effectively breaks up standing waves. Add wool felt lining across the entire interior to the mix and you end up with a cabinet that’s anything but a dead box. Rather, it’s a controlled acoustic environment that deliberately behaves more like an instrument than a container.

The driver complement follows a similarly deliberate logic. The heavy lifting is handled by an 8-inch long-throw midwoofer manufactured by SPK Audio exclusively for this application. Its cone and former are made of paper, while the voice coil windings are aluminium to reduce moving mass and improve responsiveness. An ash phase plug and a maple element mounted directly to the magnet are used to fine-tune resonance behaviour. The same philosophy applies to the 2-inch wideband driver with an aluminium cone, also sourced from SPK Audio and mounted in an aluminium horn-shaped structure on top of the cabinet. Both drivers feature neoprene outer rings to reduce diffraction and share the same mechanical tuning approach that has become a Boenicke hallmark. None of this is accidental—it’s all part of a broader effort to let the drivers behave as intended.The third driver is where things get slightly less obvious but no less interesting. A 1-inch rear-firing tweeter, manufactured by Lucky Sound specifically for this purpose, handles ambient duties. It’s a simple unit on paper—plastic diaphragm and wide dispersion—but its role is far from trivial. Rather than acting as a primary treble source, it injects spatial information into the room and extends the soundstage well beyond the speaker axes. It’s lightly filtered, low in impedance and very much part of the system’s spatial tuning rather than its tonal backbone. In other words, it’s there to enhance the illusion, not to carry the load. Given that ambient tweeters are a staple of Boenicke Audio designs, their presence in the V01 comes as no surprise.

Where the V01 really separates itself from the pack, however, is in how these drivers are mounted. Both the midwoofer and the widebander above it are suspended—literally. The former is firmly connected to an internal baffle coupled to the main front panel on the bottom, while the neoprene ring that separates this transducer from the enclosure allows for a meaningful degree of movement. Meanwhile, the wideband driver inside its horn-shaped housing is decoupled from the cabinet via a system of fine carbon strings. Gently nudged, it will rock back and forth for a while. This approach, borrowed in spirit from the flagship W22, is no coincidence—Piotr was so impressed by that design that he asked Sven to incorporate elements of it into the V01 project. The purpose of the entire driver suspension system is to minimize the transfer of mechanical energy generated by the transducers into the cabinet and, crucially, prevent delayed reflections from feeding back into them. This is highly unusual engineering that I haven’t encountered in any speakers other than the W22 and V01.Electrically, things are kept deliberately simple. The crossover is a hand-wired, first-order affair with just two transition points at 1500 and 6000 Hz. The 8-inch driver hands over gently to the wideband unit at the lower point, while the upper region introduces additional step-curve shaping of the wideband driver to achieve a more linear acoustic response, alongside the rear tweeter. There’s no aggressive filtering here, no steep crossover slopes trying to force compliance. Instead, the V01 relies on wide overlap between drivers and careful mechanical tuning to achieve coherence. Internal signal transfer is handled by LessLoss wiring, cryogenically treated and cotton-insulated, while KZK capacitors and a low-impedance coil take care of the minimal filtering required. It’s a classic case of doing less electrically so more can happen acoustically.

The entire assembly sits on a three-point support system using as many solid maple discs supplied per speaker. The rectangular rear port, integrated into a nicely finished steel base, sits deliberately high above the floor so that part of the midwoofer’s rear output can escape more freely and quicker, resulting in a cleaner bass response. Just above floor level sits a set of WBT NextGen copper terminals mounted on a steel plate tucked into a semi-open compartment of sorts, which has some practical implications. Speaker cables terminated with banana or BFA connectors won’t pose any issues, but large spades on stiff leads might. Then again, this is more of a reviewer’s complaint than anything else. During evaluation, cables tend to be swapped frequently. Regular users won’t do that, so in practice this will be a minor one-time inconvenience at most for them. With that out of the way, let’s move on to what the V01 can and can’t do where it matters most.Knowing Sven’s previous designs, I already had a fairly clear idea of what to expect from the V01 loaner. That also meant one thing: before it even landed in my room, I needed the right amplifier for the job. Enter Aavik I-588, a class D affair in a beautifully executed enclosure that delivers 300 Wpc into 8 Ω and twice that into 4 Ω. Its three-digit output impedance is an order of magnitude lower than that of my Trilogy 995R mono amplifiers, which makes it a far more suitable partner for a load of this kind. For that reason alone, the Aavik became my primary amplifier for this assignment. The digital front end remained unchanged: LampizatOr Horizon360 DAC fed by Innuos Statement Next-Gen handling server/streaming duties. Lastly, the V01 naturally had to compete with my W11 SE+ floorstanders. Swapping between both speaker sets, positioned side by side, proved enjoyably straightforward. All it took was muting playback, moving the Boenicke S3 speaker cables on external Firewall modules from one speaker to the other, then unmuting and hitting play. Rinse and repeat as many times as necessary to build a proper aural map of the differences. Done.

V01 positioning in my room was the first order of business and something I had sorted within minutes of unpeeling the speakers from their cardboard exterior. All of Sven’s designs thrive on generous breathing space, and the V01 quickly made it clear it was no different. Positioned 1 m away from the side walls, 1.5 m from the front wall and gently toed-in to cross behind the listening seat, it snapped into focus, locking all key images in place and delivering bass in an orderly, well-controlled manner. From that point onward, things escalated quickly—and in a very enjoyable direction.Before moving forward with the V01, it’s worth outlining what has become the usual Boenicke house sound. All of Sven’s speakers, without exception, are spatial fiends. The soundscape they create in front of the listener is not only vast in scale, but also richly layered and complex in all directions, largely courtesy of wideband drivers augmented by rear-firing tweeters that further enhance imaging. This spatial ability has arguably become the brand’s most defining trait, particularly when one considers the very slim profiles of its bestsellers. On paper, nothing about them suggests this level of performance, yet in practice they consistently overdeliver. With a significant portion of the audible bandwidth handled by a wideband driver, the resulting point-source behavior ensures high spatial accuracy that keeps image blur firmly at bay. Boenicke speakers are also surprisingly capable in the bass department. To make a point, even the smallest of the lineup—the W5 monitors—are routinely demonstrated by Sven in large rooms without any subwoofer support. Add it all up and you get a family of nicely dressed speakers that perform well beyond what their compact footprints would suggest. For many people, including me, the appeal is obvious.

That the V01 carries a fair share of the Boenicke DNA outlined above was expected. Its midwoofer and widebander overlap generously and sit close to one another, which makes this design particularly adept at spatial accuracy, clarity and image scale. While that alone already points clearly to the designer involved, the V01 has a few additional aces up its sleeve. Its topology gives some clues. While technically a floorstander, in many ways it behaves more like a two-way monitor—albeit one on a serious steroid cycle, manifested primarily in its bass performance. The way Basel Acoustics’ debut product handles this aspect is puzzling at first. On paper, a single 8-inch driver in a reasonably sized enclosure doesn’t suggest extension much below, say, 35 Hz. In practice, however, the V01 confidently dips into the sub-30 Hz region, where proper room-shaking rumble resides. If its boldly spacious presentation came as no surprise, the kind of bass that could be felt in my chest certainly did. That was the first “okay, interesting” moment I had with this speaker—but not the last.If many conventional two-ways have that nicely flowing and unified character, then the V01’s widebander pushes that envelope a fair bit further. The sound it produced in my room was exceptionally coherent and flowing, to the point where it felt as if a single driver handled the entire bandwidth. In hindsight, that shouldn’t be surprising given the V01’s minimalist, shallow filtering and generous overlap between its key drivers. Still, just days prior to its arrival I had the MOB 3 open-baffle three-way in-house, which—impressive as it was in terms of scale and sheer propulsion—on more intimate, acoustic material and vocal-centric recordings sounded comparatively more diffuse and less emotionally engaging. In that specific regard, the V01 came remarkably close to my Vox monitors, which excel at exactly this kind of repertoire. The space projected by the Swiss newcomer was also very well organized and, to a notable extent, similarly enveloping. All in all, this is a finely resolved, highly nuanced speaker that clearly thrives on acoustic material rich in real instruments and delicate female vocals. That alone makes it a finessed performer—but there’s more.

If it weren’t for that surprisingly deep bass response, I could easily draw the line here, label the V01 as a speaker particularly suited to jazz and acoustic genres, highlight its strengths in those delicate areas and call it a day. In absolute terms, however, its voicing is just as energetic, lucid, quicksilver, radiant, responsive, fresh and elastic as it is sensual, intimate, vibrant and tonally packed. That broad skill set makes the V01 equally at home with all kinds of music, including electronica driven by rapid synth pulses, which ultimately makes it a very versatile design. If most listeners exposed to the V01’s performance would describe it as spatially outrageous and, all in all, unexpected, I wouldn’t argue. In that sense, it sits very close to the Boenicke lineup. It does, however, come with one non-negotiable requirement: an amplifier capable of exerting firm control over the midwoofer’s rear stroke. To illustrate, the V01 driven by Trilogy 995R monos in class A bias produced bass that was noticeably softer, bloomier and shakier, and on bass-intense material, often overpowering. Switching those amplifiers to class AB—lowering output impedance and increasing available power by a factor of four—somewhat reduced these issues. With the Aavik I-588 in the chain, they evaporated altogether. This is not unusual. My W5 monitors and W11 SE+ floorstanders behave in much the same way, as did the long-gone W8 and many other ported speakers I’ve had through here. While class D currently offers the most cost-effective path to unlocking the V01’s full potential, I’m sure that well-executed class AB designs with sufficiently low output impedance can deliver comparable results. Ultimately, this is less about amplifier topology or price and more about mechanical compliance—and, in this case, firm control backed by low output Ω.After spending several days with the V01 on its own, it was high time to put it against the W11 SE+. That encounter also served as a timely reminder of why I’ve never seriously entertained the idea of replacing the latter. My recent experiences with Voxativ Alberich2, Daudio MOB3 and Børresen M8 Gold Signature left me quite taken with dipole bass, and in that context the W11 SE+ is rather special. While vented at the rear, its side-firing 10-inch woofer with a flat carbon-fiber cone on a long-throw suspension—one that barely moves—delivers low frequencies with a distinct dipole-like character. On bass duties, it doesn’t sound bloomy or rounded, but predominantly taut, energetic, thunderous, immediate and downright slamming. If most ported speakers offer bass that’s round, thick and warm, my daily driver leans primarily toward contour, contrast, impact and sheer aural violence, which I happen to enjoy. Against that backdrop, the V01’s bass struck me as primarily voluptuous, fuller and less rigid, more centered between the speakers and, in general, closer to what one would expect from a conventional bass-reflex design, albeit one capable of very generous reach given its driver and enclosure size.

The above already outlines where the W11 SE+ holds the upper hand. While the V01’s voicing is hardly relaxed, cosy, warm or delicate per se, my daily driver still came across as more lit-up, spatially majestic, energized, dynamically broad and propulsive. The way it moved air in my room felt entirely different, resulting in a presentation that was spicier, more immediate and direct, and with its tonal center of gravity set higher. Naturally, the V01’s own tuning felt more grounded, but also juicier, more picturesque, sensual, delicate and—again—finessed, in the sense that it rendered colors and subtle tonal shifts in a way the W11 SE+ currently cannot at my place, at least not without one specific amplifier that costs roughly three times as much. No matter. The key takeaway lies elsewhere.After spending time with both speakers, I’d wager that most listeners would prefer the V01 in my room. It’s simply the more approachable and sonorous design, and one that already excels at what it does and how. The W11 SE+, on the other hand, is a special case that demands additional effort to fully harness its bold character while preserving its vivaciousness, dynamics, high-tier resolution and electric demeanor. Room size sits at the very top of that list, and mine is nowhere near as large as it ideally should be. In absolute terms, the W11 SE+ can do more, but it also asks far more of the listening space, associated hardware and, ultimately, the listener. The V01 does not. Pair it with a sufficiently controlling amplifier, surround it with as much space as you can, and it simply works. That’s exactly what I did, and the payoff exceeded expectations. In fact, during the final days of its stay, I found myself using the V01 far more often than the W11 SE+. Let’s wrap.

In an industry populated by intimidatingly large, multi-driver loudspeakers, the Basel Acoustics V01 may come across as an extravagant oddity that’s hard to justify. It isn’t. Inhale, step back, take in the whole, exhale—and the picture sharpens instantly. The V01 isn’t trying to win the usual arms race, nor does it even bother to compete on those terms. Instead, it leans heavily into mechanical ingenuity, resonance control and unorthodox driver implementation to show just how far a minimalist two-way floorstander can be pushed. That it borrows from the Boenicke playbook works very much in its favor, but make no mistake—what you get here is not imitation, but a recognisably related reinterpretation that stands tall as its own sharply dressed, brilliantly voiced and quietly subversive creation. One that warrants attention and lingers in memory, much like the Boenicke designs that inspired it. Props to Piotr for backing the right man, staying the course, walking the walk and ultimately getting there. The Basel Acoustics V01 serves as compelling confirmation.

Associated Equipment:

Retail prices of reviewed components in EU (incl. VAT):

  • Basel Acoustics V01: €13’490/pr

 

Manufacturer: Basel Acoustics

 

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