Tanchjim Fission VS Artti T10

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The Tanchjim Fission is an absolutely spectacular IEM that feels and performs far beyond its $129 price tag. It comes loaded with a ridiculous amount of customization, featuring three interchangeable nozzles (stainless steel, titanium, and brass) and a four-way tuning switch, creating a potential 12 different sound combinations. The entire package feels flagship-tier, boasting an excellent interchangeable cable system with 3.5mm, 4.4mm, and USB-C terminations, a waterproof bag, and even a keychain tool for adjustments.

After extensive testing, the definitive "cheat code" for the best sound is using the brass nozzles with the tuning switch set to Pop mode, which seemingly bypasses internal circuitry for a pure, direct sound. This configuration delivers exceptional clarity and a surprisingly wide soundstage, though they are not bass monsters. The fit is excellent, passing the "pinky test," and the build quality on everything from the IEMs themselves to the accessories is exceptional.

While not every combination of nozzles and switches is a winner, the sheer number of options ensures you can find a sound you love. For the price, the value is unmatched, feeling like a product that should cost $279. It comes as a full recommendation, offering a premium, highly tunable experience that is arguably one of the best deals in the IEM market, cementing Tanchjim's reputation for making no bad gear.

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The Artti T10 is a 14.2 mm planar dressed in an unapologetically industrial shell—textured, raw, almost “1980s test-gear” chic. In the box: case and a solid cable with a 3.5 mm or 4.4 mm choice at checkout (no modular tips to swap later). The shocker is the price: $69 with a 15% coupon, a package that feels like it should sit closer to the $200–$250 crowd. One big knock: a paper insert from the retailer pushing incentivized 5-star posts for $10—hard pass on that practice. Aesthetics aside, the overall presentation screams “budget done right” without pretending to be luxury.

Sonically, this set hits like a grown-up S12: wide staging, crisp detail, and a sweet, forward treble that stays exciting without turning glassy. Bass comes in clean and controlled, vocals land with satisfying color, and the tuning keeps tracks engaging across genres—laid-back when the mix calls for it, energetic when it gets heavy. It scales with source (surprisingly happy on tubes like WA7), and tip-rolling pays off—deep-seal options (Render, Dunu SS, XELASTEC-style) add presence and grip. Under $100, it’s easily a top-five contender on sonics alone. Final word: 9/10 for sound; would edge closer to perfect with a modular plug system and a better tip spread, but as a wide, detailed, insanely good-value planar, the T10 absolutely delivers.

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The Tanchjim Fission presents fantastic value right out of the box, largely thanks to its inclusion of a high-quality USB-C DAC cable with 3.5mm and 4.4mm terminations. The all-metal build feels premium, and the included cable is extremely silky and pleasant to use. A standout feature is the set of interchangeable nozzles that allow for sound tuning; the gold nozzle is the clear winner, providing the best balance, while others can make the bass less impactful. However, the fit can be a challenge for some as the shell lacks a pronounced lip, and the nozzles can be tricky to remove and replace.

Sonically, the Fission is extremely close to the more expensive and beloved Tanchjim Origin, offering a smooth, energetic sound with a tonality that is highly enjoyable. It provides a touch of warmth, pristine detail, and good air, making it a set that is easy to recommend and daily drive. When compared to other sets in its price range, it holds its own against competitors like the Dunu Kima (which has better fit and accessories) and the Kiwi Ears Quintet (which offers more bass), though the choice ultimately comes down to personal preference for tonality and the value placed on its tunable nature.

While it doesn't break the so-called "curse of the $150 IEM," the Fission is a strong contender and gets a full recommendation. Its few cons include a fit that may not work for all ears and a bass quantity that some may wish was greater. For those who value its specific sonic qualities, the excellent build, and the incredible package value with the included DAC cable, the Tanchjim Fission is a fantastic and competitive option that is very easy to enjoy.

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Tanchjim Fission follows the brand's long-arc approach with a full bass arc and upper mids set just under Harman, yielding natural lower mids and balanced male/female vocal weight. A four-way switch plus three swappable, clearly labeled nozzles alter geometry subtly and nudge treble/texture, so cycling nozzles matters; in total there are up to twelve tuning combinations that stay coherent rather than gimmicky.

Compared with Origin, bass sits lower/back on the stage, freeing space for vocals and instruments; presentation is bigger and airier with better imaging and layering. Mids are more neutral in weight and closer to the open “Oxygen” style than the thicker, in-head feel of Origin, which helps EDM and mixed-genre playlists sound cleaner while avoiding mid-bass bloat.

Technical resolve is modest for the class: detail retrieval trails the stage/imaging strengths, and treble extension is good but not top-tier for a dynamic driver. Value is price-appropriate; pick the most resolving nozzle and consider lowering bass via the switch. The modular USB-C DSP connector and app add five sensible warm U-shaped presets—this brings real versatility—whereas a CS43198 “Luna”-type dongle tends to flatten depth, making the DSP path the preferable pairing.

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The Tanchjim Fission presents a neutral, balanced, and clean sound signature that is also described as smooth and full. It offers a very natural and laid-back listening experience, making it a strong option for those seeking a safe, non-fatiguing tuning. The technical performance is solid for its price, with good detail retrieval and instrument separation, though it isn't the most dynamic or sparkly set available.

Tip selection is crucial, with recommendations for the Tri Clear or Final E tips to open up the sound, while the Spinfit CP155 can add a touch more bass. The included tuning switches are largely seen as a gimmick; only the middle silver setting is recommended, as the others introduce a significant sub-bass roll-off. The Fission excels with genres like rock, indie, acoustics, and classical at moderate volumes, but its lack of sub-bass rumble and extension makes it a weak choice for hip-hop, EDM, or rap.

Its greatest strength is its value proposition, as it is essentially a cheaper version of the Tanchjim Origin, sharing the same driver and sound profile for a lower cost. This makes competitors like the Moondrop Kato seem less relevant. However, when compared to other all-rounders like the Juzear 4U or Simgot EW300, the Fission faces stiff competition. The EW300, in particular, offers more bass, tuning variety, and similar technicalities for half the price, making the Fission a tougher sell unless its specific brand of smooth, neutral tonality is exactly what you're after.

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Tanchjim Fission comes in at $130 with a quirky onboard tuning dial that offers four bass positions—but every setting trends toward modest bass anyway, making the adjuster more novelty than necessity. The default “bass-max” profile presents that familiar single-DD contrastiness with a bit of dynamic punch, a slightly bright/forward tilt, and overall inoffensive treble. It never tips into harshness or sibilance, but the bass attack reads a touch pillowy and the whole presentation stops short of truly incisive.

In direct comparison, it’s more comfortable tonally than the spikier sets yet less engaging and less tight than the standouts, settling into a solid C-tier alongside other “fine but unremarkable” options. Resolution and imaging are serviceable, treble stays safe, and the included cable is surprisingly nice, but there’s not enough slam or bite to push it up the chart. Net result: a competent, easy-listen single-DD for those who value smoothness over excitement, with limited payoff from that bass dial.

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Artti T10 hits the budget planar brief with a thoughtful package: a sturdy hard carry case, six pairs of tips (S/M/L in both standard and wide-bore), and a supple 4-wire cable offered in 3.5mm or 4.4mm. The cable behaves well, but the chin slider is frustratingly stiff. Build is reassuring—polycarbonate shells with a UV treatment, metal mesh at the nozzle, and sensible venting—while remaining exceptionally light. It asks for a bit more juice than a phone; a small dongle DAC is recommended. Comfort is solid for average ears, though the “tiny ears test” fails as jaw movement can break seal. Styling leans retro hearing-aid; the “Council of Ladies” gave it a unanimous thumbs-down.

Tonally, this is a mild V-shape with excellent sub-bass extension and punch, speedy planar bass that stays clean, and mids that are accurate with a hint of female-vocal forwardness. Treble is clean, smooth, and non-fatiguing, walking the harmonics tightrope without glare. Technicals impress across the range: clear microdetail, crisp transients, confident separation, and a stage that places instruments naturally with good stereo imaging. It handles electronic bass drops, rock kick drums, complex vocals, and fast acoustic picking with equal ease—planar speed without the usual edge.

Against peers, T10 reads like a slightly more relaxed Letshuoer S12 at a fraction of the cost; brighter and more energetic than Letshuoer S08 and Hidizs MP145, and more lively than the more neutral NiceHCK F1 Pro. It’s a clear step up from the budget Luna, especially when found on sale. Accessory parity is strong, ceding only to sets with modular cables (S08/S12 Pro). Verdict: at $75 MSRP this earns “This is brilliant” on the Audio Amigo scale, with a standing upgrade to “You should buy this” if available around $50. A top-tier value pick for anyone wanting a mature, engaging planar—so long as small-ear fit and the looks aren’t deal-breakers.