Argento Audio Flow Ultima Cables Review

Silver Surprise

Alan Taffel

Full disclosure: When it comes to cables, I’m not a silver kind of guy. I’ve just never liked the sound—and in my experience, there is a sound—of that metal. To me, silver cables and cords have always come off as cold and analytical. When I’ve had the chance to compare silver and copper cables, all other things being equal, I’ve invariably preferred copper.

So, when Robert Harley approached me with an offer to re-view some new silver cables from the 32-year-old Danish company Argento, I politely begged off. Given my past experience with silver, I explained, such a project would hardly be fair to the manufacturer. But Robert persisted. People whose ears he trust-ed had told him that these were no ordinary silver cables. I agreed to give them a listen, with no commitment to do a full review.

Well, the fact that you are reading this gives away the punch-line. I tried the Argento Flow Ultima cables and power cords, and I liked them. I really liked them. In fact, I preferred them to my longtime Empirical Design reference cables—and that’s saying a lot.

Preparation

My honeymoon with the Argentos did not begin immediately. In fact, at first I disliked them quite a bit. Compared to the energy and extension of my reference cables, the Flow Ultimas were initially soft, polite, and closed in. The only silver lining, so to speak, was that they didn’t sound like silver. In a bizarre way, that was encouraging.

In speaking with Argento, I learned that their cables re-quire a lot of break-in. I had already submitted them to about 50 hours, but that, they told me, wasn’t enough. The interconnects and speaker wire needed about 100 hours, while the power cords re-quired several times that.

Sure enough, in reasonably short order the interconnects and speaker wire began to flourish. On the other hand, the power cords stubbornly refused to open up. Eventually I ran out of time and patience, at which point I asked Argento to simply send me some broken-in power cords. They complied, and when I put them in my system the difference was immediate and dramatic. The sound I’ll describe below applies to the broken-in interconnects, speaker cable, and power cords. They all have the same sonic imprint, so there’s no need to describe them separately.

Once broken in, the sound of the Argento Flow Ultimas not only excelled but came as a complete surprise to me. They did not sound like any silver cable I’d ever heard. Rather than sounding cold, they were as warm as my copper references. Nor were they the slightest bit analytical. Instead, the Flow Ultimas delivered the same organic musicality as my references. This would have been news enough for me, but the fact is that the Flow Ultimas go well beyond upending expectations about silver. They are simply superior cables and in a multitude of ways.

The greatest asset of the Flow Ultimas is an uncanny level of resolution. They achieve this not by etching details, but rather by affording the signal an unobstructed path—no connections, no material or impedance changes, minimized crystalline defects—through the cable. (How did they do that? Please see the sidebar. )

In this way, the Argentos can deliver resolution without the usually attendant exaggerated detail.

You can hear this resolution easily in the way the Argentos handle decays and reverb. Listen, for example, to the percussion on the opening of London Grammar’s “Hey Now.” The decays ebbed and ebbed for far longer than I’m used to. And on Neil Young’s peerless Live at Massey Hall, 1971, the hall reverb was far more evident than it is without the Argentos in the system.

The latter recording revealed another area of the Flow Ultima’s superiority: dimensionality. Through these cables, both the acoustic guitar and Neil’s voice took on a 3-D character I’d not previously heard on this LP. On orchestral recordings, the soundstage itself also became more 3-D, with significantly great-er depth. In addition to this resolution in the spatial domain, the Flow Ultimas also better resolved timbres, making it easier to hear the difference between instruments.

At this price point, a cable’s ergonomics should be as excellent as its sound quality. This brings up another admirable quality of the Flow Ultima cables, and one that is far from universal within high-end cables: They’re easy to work with. The Argentos aren’t overly stiff, and their terminations are robust. I must say that I also appreciated the beautiful leather cases that enshroud the cables when they’re delivered. The user experience here is as elevated as you could ask for.

Another area where the Argentos distinguished themselves—even beyond the already superb capabilities of my reference cables—was in transients. Bass, for example, took a leap in tautness. On a really dynamic track like “Los” by Rammstein, the Argento cables served up a formidable “pow” on the drums.

Which brings us to the matter of price. There is no question that the Flow Ultima cables are expensive. However, if you pe-ruse the cable terrain, you’ll see that they are nowhere near the outrageous end of the spectrum; they’re more in the middle. Further, the Flow Ultimas contain a lot of pure silver—no alloy conductors or non-silver terminations here—and silver is expensive.

With the Flow Ultima, you are getting what you pay for.

For anyone who has internalized a concept of how silver cables sound, the Argento Flow Ultima will come as a surprise. They sound nothing like typical silver cables. They are warm, resolved, dynamic, dimensional, articulate, and highly musical.

Yet these are not simply better silver cables; they’re better cables altogether. The Flow Ultima outperformed what I’ve come to feel are the best copper cable out there. I’m backing that up by making the first change in my reference cables in well over a decade. The Flow Ultimas are my new references.

Specs and Pricing
MUSICAL ARTISANS (U.S.
Distributor)
4826 Main St.
Skokie, IL
(847) 877-2791
rreyes@musicalartisans.com
musicalartisans.com

Prices:
1m interconnect, $6850;
1.2m phono cable, $7750;
1m speaker cable, $10,250;
2m power cord, $6850

Associated Equipment
Analog source: Lyra Etna Lambda Edition cartridge, Goldmund Studietto turntable, Graham 2.2 tonearm
Digital source: Bryston BCD-3 CD player Electronics: CH Precision I1 integrated amplifier (phonostage, DAC, streamer, linestage, power amplifier), Goldmund Telos 800 stereo power amp Speaker: Wilson Audio Sasha V, Estelon Forza Cables and cords (except Ethernet): Empirical Design Network switch: Reiki Audio Ethernet cable: Reiki Audio

The Argento Extreme Edition

AS SOPHISTICATED AS the Flow Ultima
is, it’s not Argento’s range-topper. That
would be the Extreme Edition Series. Whereas
the Flow Ultima’s single-conductor per polarity
construction is a departure for Argento, the
EE cables can be thought of as the company’s
standard multi-conductor design on steroids.
For instance, the EE interconnects have over
a hundred conductors, and the speaker cable
contains 1.7 miles of wire.


With so much raw silver, it’s no wonder that
the EE cables weigh a ton and cost four times
the price of the Flow Ultima. At that price, they should sound better. But do they?

I had the opportunity to find out when I visited Euphoria Audio, a high-end dealer in Dallas. Along with Argento cables, Euphoria carries all kinds of audio goodies, like the latest Soulution electronics and a range of Stenheim speakers. When I was there,

the top system on the floor consisted of said
Soulution electronics, a Taiko Olympus music
server, the impressive (and new to me) Kroma
Atelier Turandot speakers ($318k), and the Argento EE cables.

Comparing the Extreme Edition with the Flow Ultima was a simple matter of swapping. Did the Extreme Editions sound better? Yes. And clearly so. The Flow Ultima couldn’t quite match the EE in terms of top-end openness and the speed of transients. On the other hand, both had the same dynamics and bass authority, and the less expensive cable was every bit as resolved as its more expensive sibling.

I’m not sure how apparent these differences would be without the benefit of a direct A/B comparison. However, based on what I heard, if I had the means, I’d definitely opt for the Extreme Edition cables, despite their costing a small fortune. They’re that good.

How Did They Do It?

IF YOU’RE LIKE me, with an inquiring—though not always fully astute—mind, you hear something like the Flow Ultima and wonder how Argento managed to break the silver-cable paradigm. To understand that, I spoke with Ulrik Madsen, the founder, CEO, owner, and chief designer of Argento. I haven’t studied physics like he has, but I think I got the gist of what he told me. Be it known that Ulrik is a die-hard silver evangelist. Yet he agrees that most silver cables sound lousy. The reason, he says, is that “most of them do not actually contain much silver.” He elaborates, “Silver is expensive, so manufacturers take shortcuts like using alloy conductors or brass terminators to keep costs down.” With such cables, he says, you’re not really hearing the full potential of silver.


But there are plenty of expensive silver cables out
there that don’t take such shortcuts. How come they don’t sound like the Argentos? The difference, according to Ulrik, is in the way the silver is treated. Usually, in silver cables, the goal is to create
one long crystal for each conductor that spans the
length of the cable (excluding terminators).
That goal is admirable, says Ulrik, because “it is silver’s ability to form long crystal strands that accounts for its sonic superiority over copper.”
Unfortunately, he warns, “There are inevitable defects in those strands that arise from the normal manufacturing process, and these defects are audible.” To get around this conundrum—you want long strands without the inevitable unwanted crystalline defects—Argento takes a novel approach. They increase the size of the single crystal. This process is called vacuum recrystallization, and it’s done by mildly
heating the conductor in a vacuum. The result is “our conductors contain as large a crystal as possible after vacuum recrystallization.

Any piece of silver that starts out as a single crystal will not be that once the silver is drawn out into a conductor.” Argento also pays unusual attention to the mechanical side of its designs, the goal being to eliminate resonances within the cable. The company conducted an extensive search for a dielectric material that not only did its job well but also had low resonance. Eventually, Argento hit on the idea of an injected mass. That substance is called VDM, for Vibration Damping Material. Ulrik claims
that the use of VDM minimizes mechanical resonances, and, additionally, the VDM material becomes the dielectric once it is injected into the cable. In another departure from cable norms, Argento avoids all magnetic parts in its power cords. That means no steel or iron, so screws are made of either ceramics or titanium. The conductors
and blades are, of course, pure silver.
Argento takes the above steps in all its silver cables, including the Flow Ultima. However, in one key way, the Flow Ultima diverges radically from its brothers: It eschews the company’s usual practice of employing multiple conductors per polarity. Instead, the strategy with the Flow Ultima Interconnects is to form a single large conductor per polarity
from one end of the cable—including terminators—to the other, with no electrical or mechanical breaks.
This approach, says Ulrik, “allows the possibility to have no standard terminator whatsoever on the cable. The terminator merely holds the end
of the conductor in place.” In other words, unlike virtually all other cable terminators, the Flow Ultima terminator has no breaks, no connections,
no changes in metal, and no variation in thickness between the conductor and the terminator.
Ulrik claims several benefits to this approach. First, the signal sees only one path, which, as mentioned in the review, permits resolution without edge or loss of musicality. Next, it lowers capacitance.
The technique also eliminates variations in impedance that typically arise when different thicknesses of metal are joined. Obviously, a single-conductor cable is also less expensive to build
than multi-conductor cables. (The Flow Ultima line is about one fourth the cost of the higher Extreme Edition line.) Finally, from a musical perspective, Ulrik hears “a level of intimacy and performance
that wouldn’t otherwise be possible.” My listening bears that out.

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The Role of 6N Purity Silver

At the heart of every Argento Extreme Edition cable is a simple conviction: the signal should encounter nothing but the purest possible path. That’s why we use 6N purity silver—99.9999% pure, with exceptionally long crystal structures—for every conductor and every contact point in the chain. This level of purity isn’t a luxury flourish; it’s the foundation for consistent, unbroken signal flow.

In high-end audio, you’ll often see bold claims about “single-crystal” conductors. The truth is more nuanced. While silver can begin as a single crystal, the drawing process required to form a usable conductor inevitably creates microscopic fractures. What actually matters is maximizing crystal length and structural continuity—an engineering goal Argento pursues relentlessly. Our long-crystal 6N silver reduces boundaries that can introduce grain noise, micro-distortion, and tonal irregularities.

Just as critical is what happens at the connectors, the overlooked bottleneck in many premium cables. It makes little sense to feed ultra-pure conductors into brass or copper-alloy terminations, yet this is standard practice throughout the industry. Argento refuses that compromise. Every EE connector—whether spade, XLR pin, RCA contact, or IEC blade—is made from the same annealed 6N silver as the conductors themselves. This creates one continuous metallurgical chain from source to destination, eliminating the mismatches in resistance and energy transfer that often occur at junction points.

Annealing plays a crucial role. By softening the silver rather than leaving it cold-worked and brittle, we achieve higher contact pressure, more stable long-term interfaces, and lower resistance at the physical connection. The result is a more coherent, unrestrained signal—preserving microdetail, dynamics, and tonal integrity without relying on exotic coatings or marketing fantasy.

In the Extreme Edition line, the commitment to pure, long-crystal 6N silver is not an embellishment. It’s the engineering backbone that allows the rest of the design—the VDM insulation, carbon-loaded housings, and custom CNC-machined architecture—to reveal what your system is truly capable of.

VDM: The anti-vibration solution from Argento Audio

Today, virtually all cables use some kind of polymer for insulation because it is very cheap and there is a general belief that as long as the dielectric constant is low, everything is good. Of course there is some truth — but only some — since air does sound better than Teflon and Teflon does sound better than PVC.

VDMTM — short For Vibration Damping Material — is the Argento answer to address two well known yet insufficiently covered problems in cable design.

  • How should a cable be insulated to avoid shorts and corrosion?
  • How can one avoid the small air and structural-born vibrations that affect cable performance?

During our long years of exploration in various solutions, we found that all polymer dielectrics share the same sort of characteristic sound with more or less slightly raised highs and a slight thinness in the midrange. This could to some degree be relieved by choosing copper instead of silver and thicker conductors, but both these “cures” decrease the sound quality in several other ways, making the sound heavy, closed-in and a lot less dynamic.

The conclusion is that none of the usual “solutions” — plastic, air, teflon, composite materials, etc. — were the correct answer to the problem, either because they were simply inoperable or they created other issues when removing the problems caused by the vibrations.

Furthermore, we concluded that the artifacts usually heard in the high frequencies with polymer and air insulated cables were caused both by vibrations and the use of polymers.

The result of this search is VDMTM, a proprietary compound of mixed materials presenting unique elasticity and damping characteristics at room temperature as well as optimal dielectric properties.

Finding an efficient way to apply the VDMTM proved as difficult a task as inventing the material, which we overcame with a multi-stage process involving heating and injecting stages among other technical steps.

As a result of our efforts, we are proud to offer our new VDMTM in every Argento Audio cable, making available to you the true epitome of perfect electrical insulation and mechanical damping.