I’ve had a complicated relationship with my living room system. Before the kids, I had a beautiful PIEGA Coax 30.1 setup that I absolutely adored and ended up using in the living room, even with the flaws in the sound created by the room acoustics. But as any enthusiast knows, “after kids” changes everything. The living room isn’t just a listening space anymore—it’s a battlefield. I ended up giving up my living room system entirely and compromising. I got a Focal Dimension soundbar and kept it there until November 2025, when the real revelation came with the upgrade to a Sennheiser AMBEO Max. Its room correction showed me that great sound can be achieved in a living room, and more importantly, that I could listen at relatively loud volumes at night without disturbing anyone in the house.
In 2020 we got a cat that was practicing her opera voice at 3-4 am during the night. I got a soundproof door to isolate the living room area from the bedrooms. It fixed the cat issue, but I wasn’t expected to come with the huge bonus of giving me the liberty to listen to music and movies at night.
Meanwhile, my main two-channel system lived in my separate office. It’s an absolute powerhouse: Rockna Wavedream Reference Signature into the Audiobyte Superhead(acting as both headphone amp and preamp) feeding a Chord Ultima 5 power amp and MartinLogan ESL 11A speakers. But my office is sandwiched directly between the bedrooms where my kids and wife sleep. Using those Martin Logans at night was practically impossible. I relied heavily on headphones during my night listening sessions.
I love the headphone rigs, but I missed the visceral feeling of a real two-channel system in the main room. I started hunting for active, wireless solutions, explicitly looking to avoid a rack of components in a family space. I tested and fell in love with a pair of PIEGA Premium 501 Wireless speakers which also showed me that basic room correction does a good job in that room.
Then, the bug really bit me again, and I started looking at the PIEGA Coax 611s, which are passive. They were also fitting my needs very well, because they are closed speakers, so no bass ports anywhere to move the energy in the back walls or expose the risk of kids throwing toys inside.
That’s when things got difficult. My living room is an acoustic nightmare—an L-shaped space with massive drywall panels and rigid, reflective angles. I needed room correction. I was convinced that Dirac Live—specifically, the implementation in the Arcam SA45—was the only logical solution. Linn’s Space Optimisation didn’t even use a microphone. You have to virtually draw your room, input the materials, and tell the software where your speakers are. Mentally, I had already dismissed it.
But my friend Jack from Jack-fi.ro practically forced my hand. He knows my tastes better than I do sometimes. We had a long back-and-forth where I stubbornly defended the Arcam, but Jack just smiled and said, “Look, take the Linn with the Audio Analogue Accento amplifier and your Piega Coax 611 speakers for three to four weeks. Play around with it. Understand what it does.”
When Jack tells you to listen to something for a month, you don’t ask questions. You just listen.
I started with the standard “Organik” DAC version. It was amazing, but my mind kept thinking that maybe dirac live can do better in my room. I am not sure what I was looking for, as the linn already fixed the issue and sounded amazing. That is apparently how the mind works, with the “what if”? I had to get it out of my head.
I eventually got the Arcam SA45 in to run head-to-head comparisons using Dirac Live. The conclusion? I ended up buying the Linn Dual Mono Organik directly, and I spent the weekend thanking Jack for being so stubborn.
This is the story of how an un-mic’d algorithm and a brilliantly engineered Scottish DAC completely shattered my preconceived notions about room correction.
Specifications & Build
Linn isn’t just another hi-fi brand; they are the royalty of Scottish audio engineering dating back to the legendary Sondek LP12. In recent years, they’ve made monstrous waves with their proprietary “Organik” DAC architecture—an incredibly sophisticated, in-house designed FPGA and discrete component array that completely abandons off-the-shelf silicon like ESS or AKM.
Initially, Organik was reserved exclusively for their $30,000+ Klimax DSM tier. With the introduction of the Edition Hub chassis, Linn made the brilliant decision to let you modularly install that same reference-level DAC into the Selekt ecosystem.
The Edition Hub itself is well built. It’s machined from four solid plates of billet aluminum, making the chassis rigid and inert to vibration. The mirrored glass fascia hides a crisp display, and the top features a beautiful, turned-stainless-steel control dial illuminated by a 100-LED halo.
Complete details here.
Test Setup
Before getting into more details, let’s go over the system used for this evaluation.
Primary chain (Linn as streamer/DAC):
Linn Selekt DSM Dual Mono Organik (streaming via Linn app / Roon / Spotify Connect) → Audio Analogue Accento → Piega Coax 611
Comparison chain (Arcam as streamer/DAC):
Arcam SA45 with Dirac Live → Audio Analogue Accento → Piega Coax 611
Note on Room Correction: For the Dirac Live tests, I spent days tweaking target curves, dialing the correction ceiling down to 200, 300, and 400Hz to try and retain some semblance of life.
Space Optimisation vs. Dirac Live: The Reality Check
Before we talk about the DAC, we have to talk about the room.
Dirac Live measures the room via microphone and aggressively attacks the frequency response and impulse response. I optimized the Arcam SA45 rigorously. The result? The bass boom was gone, yes, but the music sounded completely lifeless, harsh, and strangely sterile in comparison to the Linn. Even when I limited Dirac’s correction ceiling to 200Hz so it wouldn’t mangle the midrange, it just couldn’t compete with Space Optimisation or Linn general.
Linn’s approach is fundamentally different. It builds a mathematical model of your specific room geometry and materials, and then selectively trims the precise standing waves below 80Hz that are muddying the sound. It doesn’t attempt to bully the speaker into a flat line; it elegantly removes the room from the equation while leaving the speaker’s true voice absolutely intact.
Another thing to note here. Yes, with Space Optimization there was some getting used to and finetuning to do to get it right. It took me some time to draw my room, select materials, play with it, etc. However, after I got the basis done, mainly drawing the room correctly, things get easier from there. You can also adjust things to your liking easier after that.
It was also awesome to see that my Piega Coax 611 speakers profile was already available in the device setup, to improve the sound based on what it knows about speaker size, drivers, etc.
So after that, the first thing is to get your room design done right:
I also set the ceiling height and tried to set the materials of the walls accordingly, meaning that I set up the correct dry walls. I noticed that it was easier to leave concrete everywhere. After you have the room, you can use it to create different sound profiles with that room as the base.
You can also play around with virtual position of the speakers and real position.
I chose the above. and adjusted the speakers location to mimic my setup.
This slider from below showed to be the most important to get the right bass response and the best sound for my liking.
I basically ended up creating more profiles with different slider values that I use based on the preferences. In my case if I go up in the value, I get a bit thicker bass. I ended up using it mostly around 40-50%, but sometimes go to 55 or 60% depending on the movie/music I listen to. This gives me enough room and flexibility to play around with different variations of the sound. So this is the main settings I am playing with lately, after I got the base done. This is why, now it’s much easier and simple to play with.
The last setting of the profile I left with default settings:
So, with all of the above, I can say that after the initial playing around for the initial setup, now it’s very easy to tweak the sound when I feel the need.
For each optimization profile it also shows you the applied filter . Seeing that it it applies up to 90hz, I was really skeptical it would be enough.
So, I was skeptical….aaand… I was wrong. The Linn approach wiped the floor with the Arcam Dirac Live.
Listening Impressions
With the Space Optimisation dialed in and the Dual Mono Organik decoding the bits, I sat down and ran through my standard reference tracks.
Bob Dylan – “Girl from the North Country”
The vocal purity here is mesmerizing. It genuinely felt like Dylan was sitting directly in my living room. The breath, the subtle inflections, the physical presence of the man at the microphone—it was presented with a crystal clarity that gave me goosebumps. But the real magic was the acoustic guitar. The attack on each pluck was instantaneous, sparkly, and incredibly tactile. You don’t just hear the string vibrate; you track its natural decay as it fades into the blackest background possible.
Jack Johnson – “Inaudible Melodies”
This track highlighted the outright precision of the Dual Mono configuration. Every single pluck string, every percussive tap on the acoustic guitar body was translated with blinding speed and absolute tactility. The midrange warmth was palpable, yet utterly transparent. The pacing was addictive—the kind of rendering that forces your foot to tap whether you want it to or not.
Rodrigo y Gabriela – “Terracentric”
If you want to test transients and dynamics, you put on Rodrigo y Gabriela. The Dual Mono Organik proved it wasn’t just polite and refined; it is an absolute dynamic monster. The energy transfer into the room was staggering. The sheer speed of the acoustic guitar strikes, the rhythmic explosion of the percussive hits—it was thunderous. The holography here was so good, the system essentially turned me into a particle vibrating inside the soundstage. I was headbanging in my living room.
Muse – “Panic Station”
I needed to see how the system handled complex, aggressive layering. The drums hit with a physical slam that caught me off guard. The Piega 611s, driven by the Accento and fed by the Linn, proved they have serious authority. But what impressed me most wasn’t just the punch; it was the holography. You could map the exact physical distance between the bass line, the aggressively textured synths, and Matt Bellamy’s vocals. It never smeared. It never compressed. It just scaled.
Gordon Goodwin’s Big Phat Band – “Sing Sang Sung”
This track is a torture test for brass and rhythm. The Linn untangled it effortlessly. The trumpets blared with stunning bite and realistic metallic sheen, yet completely avoided any harshness or digital glare. The PRaT (Pace, Rhythm, and Timing) was phenomenal. You could pick out any single instrument in the chaotic big band arrangement and follow it exclusively, or zoom out and just let the massive, layered wall of sound wash over you.
Summary & Frequency Breakdown
If I had to break down why the Dual Mono Organik is a massive leap over the standard Organik module, it comes down to three things: absolute control, explosive dynamics, and holographic instrument separation.
Bass
These speakers and this DAC don’t shout about bass; they deliver it as pure information. It digs deep and hits with immense physical impact, yet never loses its iron-fisted grip. It is thunderous, tactile, punchy, fast, and above all — controlled. When the kick drum hits on the Muse track, you feel the drum’s membrane exploding, vibrating with life, energy, but also when the membrane stops with a natural decay. The decay is lightning fast, removing any overhang that usually clutters the lower mids.
Midrange
Magical and lifelike. The transparency is one of the best I have ever heard. Voices have a dense, organic body that never feels artificially pushed forward. The texture on male vocals (Dylan) and the attack on acoustic instruments are simply out of this world. There is zero digital glare.
Treble
Crystalline, extended, and utterly fatigue-free. It gives brass instruments a realistic, metallic bite and surrounds strings with plenty of air, yet never crosses the line into sibilance. It provides a massive amount of micro-detail without feeling analytical or dry.
Soundstage
The Dual Mono Organik casts an incredibly holographic image. It pushes the boundaries of my tough L-shaped room completely out of the way — you stop sensing the walls. Instruments occupy their own pockets of air, with believable separation and depth, both front-to-back and side-to-side.
Transients / PRaT
This is where the Dual Mono pulls ahead of the standard Organik most obviously. Energy is explosive but controlled — fast attacks, clean decays, and the kind of rhythmic drive that makes you commit to whole albums instead of skipping through tracks. This unit breathes life into the music.
Tonality
Fundamentally natural. It’s actually more than natural, it’s as I mentioned with Rockna Wavedream Reference Signature, it achieves the level of realism. No boosted lows, no hyped highs, no midrange hollowness. Some might call it “honest” and mean it as faint praise, but in my room, with these speakers, honesty translates directly into long listening sessions that never fatigue.
Details & Transparency
Micro-detail retrieval is in the top tier of what I’ve heard in this form factor. You can hear the room each recording was made in, the position of musicians, the small decisions in the mix. It’s revealing without being clinical — the Organik DAC never forces detail on you; it just makes it available when you reach for it.
Movies & HDMI ARC — The Family-Proof Factor
Here’s something I didn’t expect to write about in a hi-fi review: movies.
The Selekt DSM has HDMI inputs, and I connected it to my TV via HDMI ARC. The result was jaw-dropping. To recap, I gave up my big speakers years ago when the kids were little, and I initially bought the Focal Dimension soundbar simply because the built-in TV speakers were too low quality to listen to. I assumed returning to a true two-channel system for the living room might mean compromising the family movie-watching experience. The Linn completely destroyed that assumption.
Watching movies and TV shows through the Piega 611s driven by the Linn’s Organik DAC is a completely different experience from any soundbar—including the excellent Sennheiser AMBEO Max. I had real concerns that moving back to a stereo setup meant I would lose the dialogue clarity I relied on from the AMBEO Max’s dedicated “vocal boost” and “night mode” features. I shouldn’t have worried. Dialogue is pinpoint-accurate, deeply natural, and crystal clear by default, remaining fully engaging even at lower, late-night listening volumes.
But it’s the microscopic ambient details that completely sell the illusion. If a scene takes place in a room near a busy street, you don’t just hear the actors; you hear the subtle breeze brushing against the window, the faint hum of traffic outside, and the delicate pluck of acoustic guitars playing quietly in the background. The soundstage wraps around you with such dense, layered ambiance that no DSP processing can replicate it. It’s a proper two-channel cinema experience.
This matters because it transforms the Linn from a “music-only audiophile indulgence” into something the entire family benefits from. My wife actually noticed the difference. When your non-audiophile spouse comments on the sound quality during a movie, you know the upgrade is real. The family-proof factor here is enormous—this isn’t just a streamer that sits in a rack gathering dust between critical listening sessions. It’s the heart of the entire living room entertainment system, running all day, every day.
What Could Be Better
No product is perfect, and I have to be honest about a few things.
Space Optimization takes some patience.
Dirac Live is plug-and-play — mic, sweep, done. Or at least this is what I thought. Ok, while the process was not as laborious as with linn, I still had to get the dirac software install it on a macbook and do the right steps to measure the room. Also, things didn’t stop there. I fiddled with the response target curve and the frequency start | stop lines for some time until I got a decent result. I tried on the entire frequency response, up to 500 hz, 400, 300, 200hz. I did that because on the entire frequency response, while the bass sounded “correct”, the sound was kind of lifeless and harsh. I found myself trying to mimic the philosophy of linn to reduce the impact on up to a lower frequency. That helped a lot, but I never got the magical, natural, lively sound from linn.
Linn’s approach asks you to measure your room, specify materials, and position every speaker virtually. The payoff is enormous, but requires some initial work. Once you understand and have a base, it becomes much simpler. Now I have different profiles as shown above that I used to tweak the sound based on the music/movies I watch if I feel the need to.
The price is serious. £16,950 / $22,000 is second-car territory. You’re paying for reference-tier DAC performance, build quality, the ecosystem, and Space Optimisation as a whole package. You can also get the basic dac version, Katalyst DAC and Single Organik Dac versions. They all retain part of the magical sound, with a considerably lower price. However, the dual mono organik is stunning.
The Linn app. It’s easy to use and I like that you have the streaming platforms embedded directly into the app and you don’t have to switch from one to the other. It has support for the most important ones, including deezer, which I like for the algorithm that suggest similar music based on my previous likings.
One thing that I noted though, is that my playlist I created on tidal does not show all the songs in the linn app and the filtering/search could be better. I hope they get that fixed.
Conclusion
This was one of the clearest skeptic-to-believer journeys I’ve had.
I walked in deeply skeptical that Linn’s Space Optimisation—an un-mic’d mathematical model—could actually tame my room better than Dirac Live.
I was wrong on all counts.
Linn has managed to achieve the level of art done through engineering. There is only one more product in this category in my books, the Rockna Wavedream Reference Signature.
Space Optimisation, when properly configured, is vastly superior to the aggressive phase-mangling I experienced with standard Dirac — retaining the life, the PRaT, and the natural timbre.
If we’re talking purely about musical engagement in a real living room — with real acoustic challenges and real family life around it — this is an endgame piece. It delivered genuine audio nirvana in a space I’d given up on, and — yes — successfully ambushed my wallet.
Thank you, Jack. You were right.
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