Symphonium Helios VS Symphonium Titan

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Positioned as a $1,100 4BA set with a proprietary “sub-woofer” armature, Helios promises consistency via FLAT (Filtered Linear Attenuation Tuning). In practice, the claimed impedance immunity proves fickle: desktop gear can skew the treble and dynamics, and tube amps are a no-go. Performance clicks on the right solid-state portable (e.g., a Violectric unit), where the presentation opens up with striking clarity, tactile microdetail, and pinpoint imaging. The stage doesn’t just spread left–right; there’s convincing presence—sounds pop in and around the head with tidy placement. Low end is tight and clean rather than head-rattling; it accommodates bass, it doesn’t chase it.

Ergonomics dampen the honeymoon. The shell is big and oddly shaped, the stock cable has poor ear retention, and the included tips feel thick and overdamp the voicing. Tip rolling (e.g., Xelastec, foam-hybrids, or Dunu SS) helps restore balance and bass grip, but fit remains fussy. Once settled, Helios delivers a smooth, near-tame signature that’s detailed without harshness—more refinement than fireworks. Verdict: a highly capable, clear and composed monitor for source- and tip-savvy listeners; brilliant when the chain is right, but the overall package—from fit to amp matching—can be annoying enough to test patience.

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Symphonium Titan shows up with a big box, a blue theme, and a cable that feels too soft for a $1,000 set, plus a hefty metal case that could double as a tiny sarcophagus. The shell styling reads plain, almost like a stickered faceplate, and the accessory pile is fine-but-forgettable. The headline spec, though, is the eyebrow-raising 3Ω impedance—a choice that can stress amps, make cable impedance matter far more than it should, and generally feels needlessly risky when series/parallel options and crossover tweaks exist. Swapping cables doesn’t fundamentally rescue it; the blue stock wire is comfy but uninspiring in hand, and tip-rolling doesn’t unlock anything magical.

Sonically, Titan delivers a tidy, punchy kick drum and then coasts. It comes across as an all-BA tuning that’s overly polite: narrow soundstage, very neutral demeanor, vocals that sedate rather than seduce, and detail that never reaches “crystalline.” The sensation is like a go-kart with a limiter—foot down, waiting for excitement that never arrives—leaving the set short on engagement or a defining “thing” that justifies the price. Across amps—tube pre, solid-state, speaker-ish outputs—the character stays the same: controlled bass thump surrounded by music that refuses to wake up. In a world where a $21 budget set can spark a grin, Titan’s ultra-safe tuning and 3Ω quirk make it more “why?” than “wow.”

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Symphonium Helios hits the kilobuck arena with a 4-BA flagship co-developed with Subtonic, priced around $1,100. The unboxing is minimal: a waterproof, aluminum “hockey-puck” case (cool but gritty threading), assorted tips, and a standard 0.78 mm cable without ear guides. The shell is surprisingly large—reportedly to house bigger capacitors and wider tubing for the desired treble extension—and the wide nozzle plus stick-out fit will be the biggest hurdle for many ears. Comfort varies; demoing first is wise.

Sonically, Helios tracks Harman-ish through the lower mids, then diverges for a more relaxed ear-gain and a showpiece treble. Bass is sub-bass focused with near-zero mid-bass, staying impeccably clean of the mids; for BA, it slams impressively—competitive with U12t—though a touch light on texture. Mids read lean/clean (200 Hz dip), while the top end is remarkably linear with huge air; with AZLA SednaEarfit tips it can verge on abrasive, but the included silicone tips smooth things out to a class-leading treble at this price. Technicals are excellent: incisive imaging (even occasional “backwards” cues), strong macro & micro-dynamics, and lively transients; ultimate resolving edges still nod to sets like Annihilator and U12t. Taken as a whole, Helios stands as a top-tier kilobuck pick on sound quality—its fit is the make-or-break.

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Symphonium Titan delivers a bass-centric tuning that keeps its house in order. The mid-bass is tactile and textured with satisfying slam, while the sub-bass reaches deep, rumbly, and clean. Crucially, vocals remain clear and the treble is well-extended without harsh peaks; there’s a small 5–8 kHz rise that adds excitement and “snap,” yet overall control prevents bleed into the mids. The stage feels big and open, and the set avoids excessive warmth, making it a genuinely balanced bassy IEM.

There is a caveat: that 5–8 kHz lift can come off a bit sharp on forward-snare or energetic K/J-pop and hip-hop tracks, so the Titan shines best at mid volume rather than cranking it. Even so, it stays smoother than options like Maestro/Scarlet Minis, offering better extension and less fatigue while keeping the fun. Scaling is above average, and the overall presentation remains engaging and authoritative.

In comparisons, Titan reads as a direct upgrade to Monarch Minis (bigger stage, less fatiguing), more balanced than Scarlet Minis (which chase sheer slam), and a far better value play than Grand Maestro or EVOs for low-end lovers, thanks to cleaner bass and tamer upper mids. For warmer, smoother needs, DUNU’s take is fuller but not as rumble-clean or open. Under $1,000, Titan sets a new benchmark for bass-heads who still want clarity, air, and control.