Dali Rubikore 6 speakers
When I think of Denmark I think of stylish people, in minimalist houses, all with great furniture, great hair, great faces. Ok, I’m being silly but having visited Copenhagen several times over the years, my positive stereotype is fairly well founded.
The Dali Rubikore 6 only cements my conviction, with its beautiful cabinet work and minimalist size (for a big sounding speaker, these are tastefully proportioned) they sit in my small living room quite comfortably. Far less imposing than my reference Triangle Delta Sigmas, but then so is Battersea power station.
The design is a trickle-down of ideas from Dali Kore, a statement design distilled into something far more domestically plausible. As I mine the Dali website for info it’s clear they are keen that you understand how much technology is shared with their bigger, more expensive brothers, and with good reason: You are getting value here, and yes, I know £5k is a lot of money, but nice things are more expensive than ever these days, and these speakers are very nice indeed.
Drivers
Dali has long championed its hybrid tweeter module, and in the Rubikore 6 it feels fully matured. A soft dome handles the bulk of the high frequencies, while a planar ribbon extends the response into the uppermost octaves. The dome is notably ferrofluid-free, reducing damping losses and improving transient response. The ribbon element contributes to horizontal dispersion and air, it’s less about adding ‘detail’ in the hi-fi sense, more about preserving spatial cues and openness.
The crossover to this supertweeter at 14kHz suggests it’s there to finesse rather than dominate, especially as most of us able to afford these speakers can no longer hear much of what they are doing at these frequencies. It’s always odd to me how easy it is to notice the effects of a super tweeter, even if it’s hard to really hear one.
Danish furniture and acoustics
Dali’s cabinetry is often underrated, but it’s central to the performance. The Rubikore 6 uses a heavily braced, low-resonance enclosure, handcrafted in Denmark, with a focus on rigidity and inertness. And polish. Lots of polish. A very nice gloss finish to these cherry red cabinets just adds to the experience.
The Rubikore 6s have heft. So much so that the distributor was concerned whether I would have someone to hand to help install them. As, like me, they are short for their weight; it would be easy to underestimate their mass. At 23 kilos a piece you don’t just throw them about.
The Continuous-Flare bass reflex ports are designed to smooth airflow and reduce turbulence, which in practice should translate to cleaner, more controlled low frequencies – particularly at higher listening levels. This certainly bore out in listening.
According to the blurb, this relatively slim floorstander’s internal volume and tuning aim to balance extension with speed rather than sheer weight. Predicting that there’s no lack of bass weight but they do respond quickly.
Architecture and integration
The Rubikore 6 employs a 2½ + ½-way crossover topology, crossing over at 800Hz, 2.6kHz, and 14kHz. This slightly unconventional arrangement allows one bass driver to roll off earlier, supporting midrange clarity while the second driver reinforces low-frequency output. It’s a neat compromise between scale and articulation—very much in keeping with Dali’s ‘low loss’ ethos.
The 88.5dB sensitivity and 4 ohm impedance tells you most of what you need to know about partnering the Rubikore 6: an amp with some muscle and grip. A flea powered tube job is not going to be the one. I knew my 100 watts of Class A amplification would come in handy one day!
Easy to position?
The Rubikore 6 is aimed at wide dispersion, which should make them easy to site. However, I did have to toe them in quite a bit and get some additional distance between them (compared to my existing speaker locations) before they snapped into focus. Dali recommends no toe-in at all but I found that this arrangement didn’t work as well for my room; it always pays to experiment with speaker angle.
You will need a bit of space around them, as they go deep, thunderously low bass response is all fun until you have a small room. A few trips up and down from my listening spot, and a light sweat was all it took, but if your space is smaller than my 3.5m x 5m listening room you might consider their smaller cousins.
Rubikore 6 listening notes
Something great by LCD soundsystem. There’s bass! All of the bass. None of it at the expense of the wonderful electronic whistles and beeps which sound so good from this hybrid tweeter array. The midrange really sits cleanly on top of the bass and the treble sparkles in front of it all. Voices are rendered clearly, this is a coherent sound, without superficial bells and whistles, it’s all ‘just so’, and very satisfying with it.
Obviously with so much bass on tap from the Rubikore 6, Bach’s Toccata and Fugue in D minor had to happen. This was fun, while also being impressive. It’s quite the trick to plunder such depths and ascend to such highs without ever sounding showy or flashy. Danish elegance all the way. The large soundstage belies their relatively small size.
Ventura Highway by America. The guitars are so beautifully rendered, and voices again sound exactly right, they ‘pop’ so clearly. The twin tweeters really working together to become greater than the sum of their parts. I’m right in those guitar strings.
Oliver Huntemann’s 37 Grad, techno/electronica is as a fast as it is deep. The Rubikore 6s really excel here. Fantastically deep and fast moving bass, without ever losing grip. They grip like a pit bull on an intruders ankle. The transient highs move equally quickly. Banging techno has never sounded so refined although my neighbours might not agree.
Emerson, Lake and Palmer’s From the Beginning is another stellar guitar show from the Danes. It inspires a long John Martyn session that goes into the small hours. I made no notes, but I’m sure you get the picture: A large happy man on the sofa, with beautiful music filling the room around him.
Verdict
These Dali speakers are refined and beautifully made. Any criticism I have of them will likely fall outside of most people’s wish list. They consistently sound correct. What’s striking about the Rubikore 6 is how unshowy the presentation is. There’s no single headline feature; instead, it’s a carefully layered approach where each element—driver materials, motor design, crossover topology—contributes to something greater than the sum of it’s parts. This is not a loudspeaker chasing fireworks. It’s chasing rightness.
The Kore-derived technologies give it a sense of refinement and control that belies its size, while the hybrid tweeter ensures it never sounds constrained or closed-in. If anything, the design philosophy leans toward long-term listenability over immediate wow factor.
The Rubikore 6 feels less like a product designed for the demo room, and more like one intended to live – quietly and convincingly – in your listening space for many years. If these were mine I’d not be in any rush to change.
Pros
Deep, fast and controlled bass response
Refined, coherent and natural sound balance
Excellent hybrid tweeter performance with spacious treble
Beautiful Danish build quality and finish
Large soundstage from a relatively compact cabinet
Long-term listenability without fatigue
Cons
Needs a powerful amplifier to perform at its best
Careful positioning and toe-in required
Bass may overwhelm smaller rooms
Heavy cabinets can be awkward to move
Lacks exaggerated “wow factor” for some listeners