Thieaudio Oracle MKIII VS Symphonium Audio Meteor

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Thieaudio Oracle MKIII (2024) pushes hard into the “fun road” of audio: a 2DD + 2BA + 2EST stack tuned for huge, holographic soundstage and pinpoint stereo placement that feels like a room with “37 speakers.” It’s less about textbook FR and more about phase tricks, imaging, and “sounds coming from impossible places.” On well-produced tracks—Amon Tobin, Pink Floyd, cinematic scores—it throws a trippy, room-filling panorama that makes familiar songs pop with new cues. Gritty recordings don’t get “fixed,” but the set stays surprisingly tolerable given the grunge.

Chain matters: keep it solid-state or a warm hybrid tube to soften the edges—there’s bite up top that benefits from a touch of warmth. It’s not the easiest to drive (quoted 99 dB sensitivity; impedance unspecified), so a bit of gain is welcome; pure tubes flirted with distortion. Low end is a highlight: the dual-DD “Impact 2 subwoofer” delivers chesty sub-bass without smothering the stage. This isn’t built to chase Harman or “serious, linear” targets; it’s for the wild soundstage & placement crowd who want to re-experience their library.

Build and box are lightweight and comfy with a flashy faceplate; the stock swappable-plug cable (2.5/3.5/4.4) and case are adequate. Tip synergy favors Render-style silicones/foams used during testing. At under $600 (~$589) the value pitch is simple: the weirdest, most entertaining staging you can add to a collection without going crazy on price. Verdict: a 10/10 “experience piece”—not for spec sheet comparers, but for listeners who want music to leap out and orbit their head.

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Packaging and accessories go hard: a wild Nightjar cable that actually behaves, a tiny waterproof case, foam and silicone tips, even a burlap sack. The shells are much smaller than other Symphoniums and easy to fit with the right tips (xElastic/SpinFit helped). Build and unboxing feel premium and the cable ergonomics are spot-on.

Tonally, this is a U-shaped, boombastic, in-your-face tuning—big bass, crisp treble, recessed mids—designed to shove the music right into the bubble. It’s energetic and aggressive, doesn’t change much with amplification, but can get prickly with some tips and then oddly dull up top with others. The treble lacks excitement, mid clarity feels veiled, and soundstage is limited; “bass-bass-bass” dominates while detail and air don’t keep up.

At $600, the value proposition is the sticking point. Back-to-back swaps against cheaper sets reveal clearer vocals, cleaner highs, and even better bass texture elsewhere, which makes this Meteor hard to justify. For those chasing slam, sparkle, and space, there are multiple sub-$200 options that do more with less. Verdict: stylish presentation and fun punch, but too pricey for the performance—many alternatives simply outshine it.

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Build & accessories impress: a chunky yet comfortable shell with a secure 2-pin connection and a nozzle lip that holds tips firmly. The faceplate design looks premium, and the stock cable feels good in hand with a chin slider and swappable 4.4 / 2.5 mm terminations (though the modular plug can loosen under tug). The familiar Thieaudio case and standard tip set round out a solid unboxing.

On the graph and in practice, the Oracle MKIII takes a more neutral approach than MKII—less bass, tamer upper-mids. It shares territory with sets like Hype 4 (trading blows: better upper air here vs. stronger upper-mid presence there) and recalls the Pilgrim with added EST sparkle. There’s extra 4–6 kHz bite and energy in the 10–15 kHz region that can become fatiguing over longer, mixed-content sessions. In context, similarly priced options—Supernova, Noir, and Hisenior Mega5 EST—offer comparable performance with different tonal priorities, while budget picks like Hidizs MP145/MP43 or curve-match contenders such as Juzear 61T and the upcoming Binary Dino Quattro complicate the value equation where many ~$300–$400 IEMs trade blows.

Verdict: gorgeous build, good extension and upper air from the ESTs, and a generally chill-neutral tonality—yet the emphasized presence/treble bands make it a fatiguing neutral for sensitive ears. Rated a solid A for quality, but not a universal pick or a clear recommendation over peers; those who loved the Pilgrim are the most likely match, while others may prefer alternatives with either fuller bass or smoother upper-mid/treble energy.

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Thieaudio Oracle MKIII brings the Oracle line back on track with a refined 2DD + 2BA + 2EST tribrid at $590. Packaging is handsome and complete, though the large carry case is overkill. The stock cable’s swappable terminations (3.5/4.4/2.5) are convenient but the connector is bulky and a bit memory-prone; recessed 2-pin sockets play nicer with plugs that have a slight protrusion. Build is classic Thieaudio: a tasteful faceplate on a semi-custom shell that sits medium-large in the ear, secure and comfortable if the shape agrees. Fit stability is excellent.

Tonally it’s neutral with a bass boost, with the lift starting earlier than a strict Harman rise for a more consistent low-end presence—kick drums have punch without mid-bass bloat. Bass is tight and well-defined if not the last word in rumble texture. A mild lower-treble emphasis adds bite to strings and vocal edges without tipping into sibilance, though it can make the midrange feel a touch lean versus warmer sets. Where it truly shines is imaging and separation: a clean, organized stage with above-average width and standout delineation on busy tracks.

Against peers, Oracle MKIII feels like a more engaging riff on neutral-with-bass compared to sets like AFUL Performer 8, and proves tighter and more resolute than softer, warmer competitors (e.g., Symphonium Meteor), though those can offer richer midrange micro-contrast. Versus the Oracle MKII, it’s a clear course correction toward the original Oracle’s livelier balance. It may not be the most distinctive flavor at its price, and options like the Crinacle Dusk undercut it on value for bass texture, but as an all-rounder with excellent technical cleanliness the MKIII is an easy recommendation. Rating: 4/5.

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Warm-tilted and unapologetically bassy, Symphonium’s 4BA Meteor aims for a thick, relaxed presentation that still feels refined up top. The bass carries notable mid-bass weight—authoritative for BA, if not as tactile or tight as the best DD sets—while the overall picture favors cohesion over knife-edge separation. What elevates it is the treble: impressively extended, smooth, and free of glare, adding micro-contrast and vocal texture that keeps the warmth from turning soupy. Imaging is only so-so, headstage feels enveloping rather than wide, and tonal clarity takes a back seat to body—but the tuning “hits different” in an inviting way.

Build and ergonomics mark a clear step up from Helios: a smaller, medium-sized metal shell with comfortable ingress/egress and generally easy fit, though security is merely average and the faceplate print/finish can look a bit rough under certain light. Accessory details may vary, but the package shown included a nice pocketable case and a well-behaved cable (watch polarity on 2-pin). At $600, it positions itself as Symphonium’s most approachable entry, boutique quirks and all.

Against peers, Dunu’s SA6 reads cleaner and more neutral with crisper imaging (its bass can be hit-or-miss), while Shuoer EJ07M “Kind of Lava” feels the most technical here—superb DD bass and slightly tame treble with a narrower stage. The Meteor carves its own lane: a warm-neutral, meaty signature with standout treble quality and a cozy stage that’s easy to live with. Verdict: a confident 4/5—not for clarity chasers, but a uniquely satisfying alternative for those who want rich warmth done right.

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Thieaudio Oracle MKIII pushes the Oracle line into its most refined form yet: an all-rounder that’s slightly airy but remains smooth and balanced. The big story is the bass—the new dual-DD with an isobaric chamber adds tighter texture, greater tactility, and cleaner control than the MKII, and it handily outclasses the OG’s notably lean low end. Mid-range balance, layering, and separation see a small but audible step up; vocals are fuller and more natural than the thin, floaty presentation of the OG, while avoiding the MKII’s bright, wispy timbre. In the treble, MKIII strikes the best equilibrium of refinement and detail—where MKII can sound sharp, fatiguing, and poor at scaling, MKIII stays composed and nuanced.

Within the family, the OG Oracle still charms as the most natural and “pure” vocal set thanks to its 3 kHz lift and low fatigue, but it’s less resolving and less exciting overall. The MKII brings more low-end fun than OG yet trails MKIII in texture and control; its treble will mainly suit treble-heads or those needing extra upper-energy. Against peers, Mega5 EST shares the balanced, laid-back ethos but feels too neutral and light down low; MKIII hits harder and engages more without smearing the mids. Versus Hype 4, MKIII is cleaner, tighter, and more separated, though Hype 4’s bigger bass and forwardness can feel more fun. Compared with Hype 10, technical footing is similar, but Hype 10 is fuller, more dynamic, and sharper in imaging, while MKIII stays airier and more relaxed.

If stretching the budget, Monarch MKIII becomes the favorite all-rounder: more dynamic with more detailed, “popping” vocals yet still carrying the air and smoothness MKIII fans want. The truest step-up in the same vibe is Prestige LTD—larger stage, better layering, and higher detail—though MKIII actually retains better bass tactility. Verdict: a much-needed update over MKII and a strong $500 benchmark for a balanced, airy listen that stays engaging, controlled, and easy to live with.

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Thick, meaty mid-bass steals the spotlight here: kick drums and bass guitars hit with authoritative punch, driving songs forward with head-bobbing momentum. Despite being BA, the low end doesn’t sound like BA—impact is heavy, rumble is extended, and separation/texturing are fantastic, especially on instrumental tracks and Western artists with rhythm-heavy mixes. The treble surprises too: airy cymbal strikes cut through the warmth, violins/flutes glow with a smooth, non-fatiguing shine, and overall dynamics/scale impress—turn it up and it gets better.

Trade-offs show up in the midrange. That generous mid-bass can mask vocals on busier tracks, pushing them a bit distant and making textures harder to pick out versus cleaner sets like OG Monarch or QKZ x HBB’s DSP-tuned rivals. Note weight is more natural (never thin), but the set is warm-tilted rather than neutral, so vocal-centric ballads and mid-forward mixes can feel too cozy. As a targeted recommendation: for poly-rhythmic, low-end-driven genres it can be a grand slam; for all-rounder use, consider a slight EQ dip to the mid-bass to unmask vocals and open the mids—doing so keeps the Meteor’s energy intact while restoring clarity.

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Thieaudio Oracle MK3 brings a spacious, slightly pushed soundscape that can place effects a touch farther out than expected. That extra air and separation pays off in Fortnite where the game’s echo-y weapon tails and environmental cues read cleanly with excellent verticality and depth perception—a strong A- to B+ performer there. In Call of Duty, positional info stays clear and reliable for a solid B. But in tighter mixes like Valorant and Apex, some cues don’t punch through with the needed emphasis, settling closer to a B to B- range.

As a hybrid daily driver, Oracle MK3 doubles as a highly enjoyable music set: the brand’s signature F-Audio bass hits with satisfying weight and control—especially for rap—making it a kickass listen off the clock. For competitive play, it doesn’t outpace its big sibling Monarch MK3, but for players who split time between COD/Fortnite and music, Oracle MK3 is a compelling choice; pure Valorant/Apex grinders will find better-focused options higher on the WallHack list.