Sound impressions
The Grand Oriveti Supremacy IEM lands firmly in that “do no harm” category, and in some cases, that’s exactly what you want. It’s a mostly balanced W-shaped tuning that plays it safe – no outlandish bass, no searing treble, and no overbearing midrange.
But “safe” doesn’t mean bland. Supremacy does some neat tricks with vocals, staging, and imaging, and I’ll dig into those in a second. Let’s walk through how it handles the various tonal and technical elements, using some well-chosen tracks to illustrate the highs, the lows, and everything in between.
Bass: subtle and classy (but not explosive)
Starting off with Elements by A Fine Frenzy, the bass here is soft and, let’s say, politely bouncy. It’s not the type of bass that will punch you in the chest, but it doesn’t let the sound feel flimsy either. The opening drum impact is present but diffused, not punching hard but giving the sound a foundation.
When we bring out James Blake’s Limit to Your Love – a track designed to test sub-bass, that floor-rattling low rumble – Supremacy’s bass goes gentle on us. There’s a slight sub-bass roll-off, so it won’t shake your seat, but it’s still nuanced. The bass is more about finesse here than fury.
This IEM isn’t geared toward the bassheads out there, but if you appreciate quality over quantity, Supremacy should feel like a comfortable fit. It balances midbass and sub-bass with finesse, not letting any one note overpower the soundscape.
Midrange: the heart of Supremacy
Now here’s where Supremacy truly shines. Vocals and mids are comfortably forward and clear, breathing life into every word. On Heart’s Under the Sky, vocals are clearly rendered, with high-frequency detail that lends a sparkle without veering into sibilance.
They’re not too thin, not too lush – just a nice, even tone that feels very lifelike. Similarly, Brandi Carlile’s The Story comes through with her signature emotive timbre that manages to avoid any glassiness or harshness that lesser IEMs sometimes add to her voice.
On busier tracks, though, the upper mids can feel a touch intense, bordering on shouty if the recording is already high-energy. For instance, on Def Leppard’s Love Bites, the upper midrange gets a bit tizzy, especially when cymbals start hitting.
And there’s an occasional dryness – listen to Heidi Talbot’s Cathedrals and you might sense a bit of that airiness lifting some of the warmth out of her vocals. It’s not harsh, but there’s a delicate upper-treble presence that brings a touch of bite to the sound, which can be a mixed bag depending on the track.
Treble: sparkle, not fireworks
The treble is bright and airy but without the overly edgy presence that can turn fatigue into a real issue on some IEMs. Supremacy is careful to avoid any harsh peaks, staying smooth but still sparkling.
Elements shows this up close – the high notes are bright yet remain comfortably smooth. However, on denser tracks, such as this, the treble can get a tad chaotic, lacking the absolute control you might find on pricier models.
Treble-heads might find it a little tame since the upper treble isn’t bringing out extreme levels of detail, but for those who prefer a refined approach to the higher end, Supremacy nails it. Even Def Leppard’s cymbal-heavy Love Bites doesn’t feel overly harsh or brittle – there’s a bit of upper-mid emphasis, but it stays in check.
Soundstage and imaging: a precision ensemble
If you’re after a massively wide soundstage, Supremacy may not be the one. But what it lacks in size, it makes up for in proportion and imaging.
Meiko’s Crush, for example, is an excellent test of soundstage precision, and Supremacy excels here. Each instrument has its spot – kick drums to the left, guitar strings to the right, with Meiko placed just so in the middle. It’s a very pleasant and cohesive layout, making the most of the modest space available without crowding.
Max Richter’s recomposed version of Vivaldi’s Winter 1 also reveals Supremacy’s imaging strengths: while the stage may not be massive, every element feels intentionally placed, allowing the music to flow harmoniously. The bass is subtle here, allowing strings to float with a pleasing softness that highlights their sweetness rather than their sharpness. Supremacy’s imaging really does bring this music to life in a sophisticated, balanced way.
Resolution and separation: good but not show-stopping
Supremacy’s resolution is up to par with its price tier, handling detail with a deft touch but not necessarily the jaw-dropping transparency seen in higher-end sets. Cathedrals, for instance, has enough separation to let the vocals and strings coexist without blending into a muddy mess, yet there’s a slight sense of dryness that holds back a little realism.
Supremacy does best on relatively simple, well-spaced tracks. Complex tracks can stretch its separation and clarity to their limits. Take the Eagles’ live rendition of Hotel California: there’s a good sense of instrument placement and decent imaging with the crowd sounds, but when the energy builds up, you’ll start to notice a bit of smearing. The ‘room’ sound isn’t as distinct, and some of that live magic doesn’t fully translate.
However, with more controlled arrangements, like Heart’s Under the Sky, you’re treated to clear detail and just enough separation to make each sound pop, especially those tiny atmospheric effects scattered across the stage.
On the whole, Supremacy doesn’t aim to be a bass monster, treble powerhouse, or midrange marvel – but it does deliver an elegant balance of all three.
Its vocals are the show-stealers here, bringing a rich, slightly forward sound that’s ideal for vocal-centric music. In more complex mixes, you might find the occasional shoutiness or smearing, but Supremacy never loses its composure entirely. Its imaging and separation are strengths, making tracks like Crush an immersive experience. Even if the soundstage is more intimate than expansive, it’s well-proportioned, so you never feel crammed into a sonic box.
In short, the Supremacy is for listeners who want a refined, enjoyable listen that doesn’t overdo it. It’s for those who appreciate tonal balance and smoothness over big, bold statements, and who value a pleasant, if not mind-blowing, level of technical proficiency.
Supremacy is not out to dethrone pricier flagship models, but it confidently carves its niche as a reliable all-rounder that knows its audience. It’s classy, restrained, and perfect for those who want a bit of everything – without too many frills, other than those jaw-droppingly beautiful wooden shells, of course.
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