Note: for the full suite of measurements from the SoundStage! Audio-Electronics Lab, click here.
Who doesn’t love a tube amp? Okay, okay; I know there’s a large contingent of audiophiles who actively don’t like them, but those people are missing an important part of their souls. Tube amplifiers check many of the boxes that define archetypal human satisfaction. Think about it—tube amps provide warmth and light. They rely on similar principles to the lightning in the sky—which we used to think was the work of the gods.
Warmth. Light. Comfort—most definitely comfort. There’s no question that tube amplifiers have a plush, rich sound, one that lets you relax into the music. Some people don’t want to relax. They want to analyze, to inspect the music, so to speak. That’s cool and all; tube amps just aren’t right for that contingent. But for many of us audiophiles—and especially for music lovers—tubes are the actual bomb.
Since we’re talking archetypes, there is a specific tube that speaks to the heart of this concept, the original, ancient, simple, pure tube. That, obviously, is the 300B. This directly heated triode is famous for its lush, rich sound and pure, intimate midrange. Unfortunately, this tube doesn’t make much power. An output of 7W from a 300B isn’t much use for the vast majority of speakers, except for the super-high-efficiency type that is directly descended from speakers that were originally designed for this sort of thing.
But use two of those 300Bs in a push-pull circuit and you can crank out a much more practical 15–20W, which sure as heck can work with many more speakers. Pushing the envelope with this topology is Engström, the Swedish manufacturer of screamingly high-end tube components. This company has designed and implemented a cunning power supply that bumps the output of its 300B-based Arne integrated amp to a claimed 30Wpc. Now we’re talking.
I’ve circled around Engström over the last few years, visiting two of their rooms at the High End show in Munich, first in 2023 and then in 2025, where I chose their partnership with Kroma Atelier speakers as the best sound at the show.
More recently, I’ve struck up a relationship with Jason Melman, the owner of Boutique Audio Gallery, located just north of Toronto, Ontario. BAG has long represented Engström here in Canada, and I’ve visited their showroom on a number of occasions and heard Engström amplifiers driving several different speakers, all to good effect.
So thanks to Melman, and to Timo Engström, CEO and co‑founder of the company that bears his family’s name, I’ve spent the last couple of months listening to and evaluating the Arne integrated amplifier. Let’s dig in.
Lush, lusty, lovely
As I’ve said in multiple articles, Engström amplifiers are stunning examples of industrial design. Retailing for US$38,400 or €32,000, the Arne is not cheap, but it’s an extremely well-constructed, ambitious amplifier. It’s clean, sparse, elegant, and totally Scandinavian in appearance. While the chassis is well-made and certainly attractive on its own, the tempered-glass cover is what makes this amp look so special. That tube cage is available in either clear or smoked glass. I’ve seen both, and I would definitely choose the clear version—it’s just so cool. You can also customize the Arne with different colors and finish types for US$4800 or €4000.
It’s crazy how that simple glass cover transforms the Arne’s appearance. Lift the lid, and yeah, it’s a nice-looking tube amp, what with its swoopy, thick metalwork and tasteful powder-coated finish. But plonk that cover back on—it just rests on top of the amp—and now the Arne is something you’d see in an art gallery, museum, or cost-no-object home. The transition shouldn’t be that extreme due to just the addition of a piece of glass on top, but it is—it is.
The floor in my listening room is heated, and when it’s just a little chilly out, I’ll dim the lights and crank it up to 26°C, which is really nice on the belly. During this evaluation I would lie down on my stomach beside the Arne, rest my head on my hands, and just stare into its guts. From a seven-o’clock viewpoint, I could see the tubes all naked and admire the warm, glowing reflections through the glass. It looked like a stunning, fully encapsulated world in there.
I’ll happily vote the Arne in as the most elegant component that’s flowed through my listening room. There. I said it. But the Arne isn’t just a pretty face. It’s fully balanced, from input to output, which is perhaps the most interesting design feature, since you don’t see this type of configuration on other triode tube amps. It’s a pure class-A amplifier, using direct-heated triodes, with zero negative feedback. What further distinguishes the Arne is its direct-coupled driver stage, which connects directly to the power tubes.
The Arne employs two 300B power tubes and two D3A driver tubes per channel. You don’t see many D3A tubes these days. The D3A is a nine-pin miniature frame-grid pentode developed in the 1950s for wideband telecommunications applications. The particular ones in this amp are Siemens NOS types, and I envision Timo Engström purposefully descending a ladder into a well-provisioned cellar containing a steamer trunk full of these little guys. The 300Bs are high-quality tubes from Emission Labs. Engström carries a host of other brands, and you can discuss other options for driver and power tubes with them at the time of purchase.
The Arne has a toroidal power transformer and Lundahl C-core output transformers. Within the preamplifier section, the volume control is a passive stage after the input section. It’s a series-resistor-based attenuator with 48 steps. Internal wiring is sensible solid core.
Inputs and outputs are reasonably complete. There are two pairs of XLR balanced inputs and two pairs of single-ended RCA inputs, which was sufficient for my fairly complex system. I ran the Mola Mola Lupe phono preamp into one pair of XLR inputs, and the Meitner MA3 streaming DAC into the other. The EMM Labs DS‑EQ1 optical phono preamp was connected to one pair of single-ended inputs, and the front-channel outputs from my home-theater receiver to the other.
There’s only one set of binding posts, so the Arne has no provision for configuring amplifier output for speaker impedance. According to Engström, the Arne is optimized for a 5-ohm load, which is sensible. The binding posts are well made, but they are definitely best suited to banana plugs. For much of the review period, I used Siltech Royal Single Crown speaker cables, and the spade lugs blocked easy access to the power switch. When I used my Nordost Tyr 2 cables with banana plugs at each end, I had much better access to the switch. That’s another thing: the power switch is a rocker located on the rear panel, between the power inlet and speaker binding posts. This is not a convenient location. It didn’t take long to get used to this positioning, but really—for a component of this quality, I shouldn’t have to fumble blindly for the power switch.
The Arne ships with a delightful remote control. It’s a thin, elegant, solid-metal wand graced with the three controls you actually need—volume up and down, and mute. Why can’t more manufacturers make this kind of remote? The remote actuates a motor attached to the volume control, so when you press the button with no music playing, you can hear a cute little whirring noise emanating from the front of the amp.
The controls are sparse, but then again, there’s only what you need. The volume dial is large and up front. The source selector is smaller and also up front. Neither control is marked. I sometimes forgot which input source was which, so I’d turn the selector all the way counterclockwise and then count clockwise from there. No big deal; just a slightly different way of doing things over in Sweden. Other than that, there’s a low-key LED that indicates power and is dim enough that it doesn’t intrude in a dark room.
Figure it out
Over my time with the Arne I used three different pairs of speakers. Back when I reviewed the Fezz Audio Lybra, which is also a triode amp with two 300Bs for each channel, I had immense luck with a pair of Totem Acoustic Sky Towers. Those speakers, with that amp, were a match made in honest-to-God heaven. So I felt reasonably confident that I’d relive that experience with the Arne.
Not so much. The Arne was not a good match for the Totems. There was a huge suckout in the meat of the midrange that removed much of the power from anything I threw at this combo. I was surprised, but not worried. You must remember that any amplifier of this topology is totally at the mercy of the impedance swings of the speaker it’s driving. More than any other amplifier, a triode amplifier and speaker comprise a system that will either work, or it won’t.
I moved the Totems back upstairs into our living room and moved in my Aurelia XO Cerica XL speakers. These are the speakers I’ll never part with. They’re slim and elegant, and they sound incredible. Now this was a match that sparked pure electricity. From the first note the Arne played through the Aurelias, I was captivated.
The Aurelias are image monsters, projecting out a semicircular world of music, straddling that line between pinpoint spatial presentation and realistic sizing. They’ve always thrilled the analytical side of my brain, but driven by the Arne, these speakers made me want to cry, to cuddle, to correct every wrong I’ve ever done.
Strong words, but I stand by them. As is my wont, I first cued up Astor Piazzolla’s Tango: Zero Hour (LP, Pangea PAN‑42138) on the EAT Fortissimo S turntable. Fronted by the Ortofon MC 90X cartridge (review forthcoming) feeding the Mola Mola Lupe, this front end is quite literally world-class. Could you spend more money? Sure you could, but I can’t imagine achieving sound that’s any better, or a look that’s more elegant. Anyway, I often raise the cueing arm after “Milonga Del Angel” finishes, but this time I was transfixed. This record is magnificent, both in sound quality and in the music itself. There is tons of space around the instruments, and they’re clearly defined in the soundstage; via the Arne, each instrument took on a sense of corporeal body, of roundness, of enveloping depth. This recording, through this amplifier and into these speakers, was sensory overload.
Let’s reverse-engineer this sensory overload. There’s a very slight wetness to the Arne’s sound. Kinda like a rich, moist cake, made with lots of butter, soaked in a gentle syrup. There’s texture here that conveys a feeling of physical motion exciting the air around the instruments. I could sense the movement of the reeds inside Piazzolla’s bandoneon. I could feel the air molecules vibrate as they were excited by the strings of Fernando Suarez Paz’s violin.
These sensations had nothing to do with tonal balance; they were not a result of overt changes to any frequency band. Instead, I’m going to cop out here a little by saying that the Arne’s magic is a direct result of electron tubes, well applied. After listening to the Arne, I have no choice but to say it. Tube amplifiers—and preamps, but to a lesser extent—present music in a manner that adds intimacy and texture. Whether you like that sort of thing, or write it off as an additive distortion, probably determines whether you’re going to continue reading this review.
I like it very much. And I’m fairly certain that anyone who sat down and listened to this amp without having been thoroughly indoctrinated by the zealots over at AudioScienceReview.com would also like it. I’ll get down off my soapbox now.
While the Arne is an amp that you can sink into like a warm weighted blanket on a chilly fall night, it can sure as hell get up and boogie. I spent much of my time with the Arne listening to crackling rock, and there was no sense of sogginess, rolled-off highs, or wallowing bass. On the contrary. Miles Davis’s Jack Johnson (LP, Columbia / Mobile Fidelity Sound Lab MFSL1‑440) is a raging, hard-rocking album, no matter who says otherwise. The Arne gripped the Aurelias with control and finesse. Control—Billy Cobham’s snare had appropriate snap, and it showed superb coherence, syncopating with the kick drum and rolling along with Michael Henderson’s loping bass line. The bass—with all the back-and-forth between Cobham and Henderson—lacked nothing. It was tight, crisp, deep, wholly appropriate to the music. It was ideal, even when I kicked up the volume, which I often do with this record.
Two 300B tubes in a push-pull circuit generally produce power that’s on the low end for most speakers, but Engström claims that the Arne produces more power than most of its breed. It was here, listening to this record really loud, that I felt Engström wasn’t telling a porky pie regarding the Arne’s 30Wpc. The measurements will tell the tale, I guess.
Now about that finesse thing. John McLaughlin’s guitar playing on “Right Off” is the work of aliens. He plays chords that have never been played before. Strange, angular, dissonant chords that should clash horribly, but holy hell, they invoke magic. The Arne kept each string, each wacky, distorted note, utterly distinct. There was a ton of extension, but Cobham’s persistent ride cymbal didn’t obscure or take the wind out of McLaughlin’s higher registers. The Arne’s superb sense of image depth kept each instrument in its own space, totally distinct.
But that’s not the whole picture, otherwise this could easily be a solid-state amp review. At that moment, the Arne added a sense of flow to McLaughlin’s guitar. Just under halfway through “Yesternow,” there’s a gentle, introspective section where McLaughlin noodles away to himself, and while the Arne was still cracking out the top-end extension, those chords just dripped out, flowed out, reached out from the speakers, with delightful layers of delicacy and resolution.
Lots of adjectives, many metaphors there, but it’s impossible to give the measure of the way the Arne portrays midrange and treble instruments using a framework that doesn’t include at least some reaching toward poetry. I believe the ASR folks would accuse me of purple prose, and that’s okay, because I doubt they’ve got this far into the review. And besides, the aural benefit, the nature of an amp like the Arne, requires some suspension of rational discourse. You’ve heard about 300B magic? Well, here it is, and you need to think outside the box to get to the root of it.
Could the Arne be slightly rolled off up top? With maybe a bit of a midrange peak? I guess it could, and most likely there are some frequency-response aberrations, but I know that this is not why the Arne sounds the way it does. That texture, that voluptuous feeling, the rounded, fully fleshed-out images—okay, if you’re near your stereo right now, please fire up “And Dream of Sheep” from Kate Bush’s Hounds of Love (16‑bit/44.1kHz FLAC, Fish People / Qobuz). You hear how juicy and intimate Bush’s voice sounds? Now imagine her reaching out from the front of your room, so palpable that it feels like she’s brushing your skin as she sings into your ear. It’s solidity of image, combined with an increase in the subtle cues that help kick your suspension of disbelief into top gear that makes the Arne so immersive.
Toward the end of my time with the Arne I had a chance to pair it up with the Sphinx Element 3 speakers. This amp and this speaker were the partnership I was most interested in experiencing, but due to time and logistical constraints, we had to measure the amp and speaker sequentially, so one or the other was always absent from my room. I had less than a week with these two components playing nice, and for the duration, I essentially camped out in my listening room.
My first question, whether the Arne–Element 3 matchup would sound tonally balanced, was answered right quick. Via the Engström, the Element 3s sounded neutral and correct. I could detect no oddities, which was a great start. Remember, the Element 3 is a passive/active design that features its own internal amplifiers but requires an external power amplifier to function.
As the last few days with this combo unfolded, I discovered that the sound was slightly more neutral than when the Arne was driving my Aurelias. What I mean by this is that the flavor of the Arne, that deep, rich tonal balance, was in attendance, but not quite to the same extent as with the passive Aurelias.
Yet this was an admirable match. Spinning Laurie Anderson’s Mister Heartbreak (LP, Warner Bros. 25077‑1), I found myself dipped into a lake of warm honey mixed with glitter. The extension on the tinkly prayer bowls that run through “Gravity’s Angel” just shot around the room, bright, present, and utterly grain-free. Down through the upper midrange and into the midrange itself, the Arne juiced up the Element 3s with a healthy dose of flavor. I could hear it in Anderson’s voice, this glinting sparkle, her high registers leaning forward out of the mix, rounded, with much of the body and richness that I loved when the Arne was driving the Aurelias. And Peter Gabriel’s voice, as he backs up Anderson, retained a large dose of the textured presence that is the core facet of the Arne’s talents.
While I thoroughly enjoyed the Arne driving the Element 3s, I would choose to match it up with the Aurelias. Not because the Aurelia is the better speaker—no sir. The Element 3 is head and shoulders above the Cerica XO. Rather, I’d pick the Arne with the Aurelias because they let the aural brilliance of the Engström amp shine through. If I’m buying a 300B-based amp, I want to hear what it does well, and the Aurelias made that happen best.
The night before I finished writing this review, I spent a couple of hours listening to live music at Lola in Kensington Market here in Toronto. Martin Verrall and his band headlined. As you may know, SoundStage! Recordings has released its first LP in cooperation with Verrall and producer/engineer Mark Howard. I’ve really enjoyed Verrall’s C/O the Brain, and I was most interested in catching a live performance.
It was a great evening, and this band rocked. Theirs was a somewhat unconventional performance, with the drummer standing up, using only a snare and one tom. But the highlight for me was the guitarist, Jesse Elliott, a young gun playing a cherry-red Danelectro guitar running directly into a vintage Fender tube amplifier. No effects, no pedals, just a vintage guitar amp driven into crunchy, organic distortion. Like I said, the whole performance was great, but Elliott’s guitar work and the resultant sound left me transfixed. He had that John McLaughlin tone, with his dissonant chords and just-slightly-to-the-left timing. Given that I’d just that day been listening to Jack Johnson, the juxtaposition left me slightly giddy.
Where I’m going with this is that I was handed a clear, immediate contrast between recorded music and a live performance, and the similarities were striking, despite—of course—a stereo being unable to reproduce the dynamic intensity of the real thing. The tidy little Element 3 speakers do a bang-up job, with excellent dynamics and a good sense of slam, but they’re not a big-ass live PA system. Still, I was captivated by how similar the overtones on Elliott’s guitar were to the Arne’s reproduction of McLaughlin’s playing on Jack Johnson. There’s real-world music within this amplifier, emotive, glistening, and powerful.
Mess with my head
What should a good amplifier do? Should it simply get out of the way and amplify the source? Or should it try to inject into the music some of what goes missing during the process of forcing it through a tiny microphone, down a bunch of wires, and back out from a pair of speakers?
Or should the task of an amplifier be something in between those two rigid paradigms? Maybe it should try to retain some of what other amps discard—the juice and flavor that other amps miss. One way or another, we’re not listening to sine waves. Music should be pleasurable; it has to appeal to the listener. Of course, strictly neutral solid-state and nearly neutral pentode tube amplifiers do a fantastic job of this, of reproducing music in a satisfying way. But listen to the Arne with the right speaker for a few hours, and you’ll get the feeling that something is missing from music played through any other amp.
Of course, an amp like the Arne has to work with your speakers, and that’s not a given. I’ve heard Engström amplifiers with a number of speakers now, and they’ve almost always sounded glorious. Regardless, the amp-speaker interaction isn’t guaranteed with any pairing, and it’s definitely something you’ll need to consider before purchasing.
But my stars—if you get the right speaker matchup, you could easily craft a system that would play music down through the ages.
. . . Jason Thorpe
jasont@soundstagenetwork.com
Note: for the full suite of measurements from the SoundStage! Audio-Electronics Lab, click here.
Associated Equipment
- Turntables: VPI Prime Signature, European Audio Team Fortissimo S
- Cartridges: European Audio Team Jo N°8, DS Audio DS 003, Goldring Ethos SE, Ortofon MC 90X
- Phono preamplifiers: Aqvox Phono 2 CI, Hegel Music Systems V10, EMM Labs DS‑EQ1, Meitner Audio DS‑EQ2, Mola Mola Lupe
- Preamplifiers: Hegel Music Systems P30A, Meitner Audio Pre, Simaudio Moon Evolution 740P, NAD Masters M66
- Power amplifiers: Hegel Music Systems H30A, NAD Masters M23 V2
- Integrated amplifier: WiiM Amp Ultra
- Digital source: Meitner Audio MA3
- Speakers: Focus Audio FP60 BE, Aurelia XO Cerica XL, Totem Acoustic Sky Tower, Sphinx Element 3
- Speaker cables: Siltech Ruby Crown, Audience Au24 SX, Nordost Tyr 2, Crystal Cable Art Series Monet
- Interconnects: Siltech Royal Single Crown, Audience Au24 SX, Furutech Ag‑16, Nordost Tyr 2, Crystal Cable Diamond Series 2
- Power cords: Siltech Royal Single Crown, Audience FrontRow, Nordost Vishnu, Audioquest Thunder
- Power conditioners: Quantum QBase QB8 Mk II, AudioQuest Niagara 5000
- Accessories: Little Fwend tonearm lift, VPI Cyclone record-cleaning machine, IsoAcoustics Gaia III Neo loudspeaker isolation footer
Engström Sound Arne integrated amplifier
Price: US$38,400, €32,000
Warranty: Three years, parts and labor; five years on Emission labs tubes, six months on driver tubes
Engström
Clemenstorget 6
SE-222 21 Lund
Sweden
Phone: +46 (0)733 70 51 51
Website: www.engstromsound.com
