Epz K9 VS Dunu Vulkan 2

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EPZ K9 brings a flashy spec sheet and premium feel: a 9-driver hybrid (1DD+8BA) dressed in a world-class shell that fits securely, vents properly, and looks gorgeous with its blue-white case. The stock cable offers swappable 3.5↔4.4 termination and a steady chin slider, though the fabric sheathing and barely visible L/R markers are quirks. Originally teased near $300 and now closer to $400, the package screams polish more than compromise.

Sonically, this is a V-shaped tuning with rich bass, thick lower mids, and extra energy in the 3–6 kHz band that can make stick hits and sibilants feel a touch sharp. The midrange clarity is only decent and the upper-air/treble extension is just okay, but staging comes across pleasantly open. Graph comparisons paint the picture: versus EPZ’s own P50 (safer, flatter upper mids) and the more majestic, warm-lean V of the EPZ 530, K9 pushes that presence region a few dB higher. Sets like Afu Dawn X flatten that band while extending air; Softears Volume offers a very similar profile but even more 5–6 kHz energy; and options around this price—Magic Top Pro, Yu9 Chua—show alternate takes with either dipped presence or stronger bass/1 kHz support.

In practice, K9 aims for excitement: weighty bass, a forward upper-mid/low-treble bite, and a lively stage. Listeners craving a crisp, energetic V will find plenty to enjoy, while those sensitive to brightness or seeking mid clarity and airy refinement may prefer the P50, 530, or similarly priced competitors. Stunning build and respectable performance, but the tuning choices make it a taste-dependent recommendation rather than a universal pick.

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The Dunu Vulkan 2 boasts exceptional build quality and comfort. Its shell design is praised as extremely nice at any price, fitting securely with a flat two-pin connector, metal nozzle, and helpful anti-tragus catch. The comprehensive accessory package is a major plus, including a pocketable case, 6.3mm and 3.5mm connectors, a cleaning brush, IEM booties, two sets of tips, and a particularly supple cable featuring a screw-lock termination for easy swapping. Everything about the physical presentation feels solid and well-executed.

Sonically, the Vulkan 2 represents an improvement over the original, offering a presentation focused on detail retrieval and a well-done upper mid-range and treble. The overall signature is slightly bright and energetic, leaning towards a treble-focused tonality while still providing sufficient bass to feel rich and supported, though it lacks a thunderous low-end impact. This results in a slightly lean sound that some might find a touch brittle, but the tactful tuning delivers great detail, nice mids, and a presence region comparable to sets like the Moondrop Meteor. Comparisons reveal it has less bass than the DUNU Brain Dance (especially with an impedance adapter) or the Kiwi Ears Astral, but its mid-range and treble presentation are standout strengths.

Despite the slightly lean bass response, the Vulkan 2 emerges as a strong package at its price point. The combination of its superb build, comfort, excellent accessory set, and a detailed, engaging sound signature focused on mids and treble makes it highly compelling. It's recommended for listeners seeking a studio-monitor style presentation rather than a bass-heavy experience. While not a perfect one-and-done for everyone, and a bass adjustment feature like a rumble switch or impedance adapter would be welcome, it stands as a near-endgame option offering great value and quality within the $300-$400 range.

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EPZ K9 lands as a sweet, balanced all-rounder with a tasteful, slightly V-shaped tilt. Bass is snappy and well-controlled, with a mid-bass fill that adds natural note weight to vocals and drums without muddying the mids. Treble extends cleanly with a hint of air, steering clear of both dullness and sharpness, while imaging is a touch sharper than entry peers. Think EM6L’s vibe but less shouty up top, a bit more resolving, and a clear upgrade path from sets like the Clean/EW300.

Against rivals, K9 takes a more vocal-centric approach: fuller mid-bass, smoother presence, and better slam/body on drums. Astral counters with stronger sub-bass texture, extra air, and a tamer upper-mid for high-energy genres; both trade blows on detail with K9 edging imaging. Versus Odyssey, K9 offers cleaner treble extension and forward vocals, while Odyssey is bassier, with deeper sub-bass texture and louder-volume scaling. Overall technicals sit around Pilgrim/Dusk level, which is solid for the price, especially with the nicer cable, case, and a black color option.

Usability is largely easygoing—tip-rolling is flexible and the stock clears keep things smooth—though the shell edge can feel uncomfortable over long sessions. Best at mid-volume listening (around 60–65 dB); push higher and upper mids/treble can get lively on K-pop/EDM, while R&B/indie scales sweetly up to ~75 dB. Compared with bass-tilted sets (Tea Pro/Hype 4/Estrella/Punch/Martello), K9 is cleaner, tighter, and more mid-range focused; versus neutral leaners (Pilgrim/Dusk/Canon Pro/“5+2”), it has a more complete upper-mid for vocals. Not a market-breaker in pure price/perf, but as a refined, musical package with balanced tonality and comfort-adjacent caveats, K9 is a very solid all-rounder.

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Initial skepticism about the Dunu Vulkan 2's significant scoop in the 150-200Hz range quickly faded upon listening. This scoop typically kills rhythmic intensity, slam, and weight, making genres like hip-hop or EDM sound anemic. However, the Vulkan 2 makes it work through a tamer upper midrange compared to Harman targets and a filled-in lower midrange past 200Hz. This creates a smaller contrast (around 7dB difference between peak and mid-bass) than expected, preventing the sound from becoming overly thin or shouty. The result is a surprisingly balanced, neutral, and vocal-centric tonality that excels with artists like SZA, Frank Ocean, or Lana Del Rey on genres such as indie rock, ballads, and acoustic tracks.

This tuning comes with clear trade-offs. The lack of sub-bass is the most significant limitation, making the Vulkan 2 unsuitable for hip-hop, EDM, rap, or movies where rumble and slam are essential. Boosting the sub-bass wasn't feasible without creating an even bigger scoop or ruining the intended neutral, clean vocal focus. Technically, it offers good layering, separation, and a slight bite in transients, with detail and resolution comparable to sets like the Dusk, though not class-leading for its price. It scales well with volume on its preferred genres (around 75-80dB), sounding clearer and more engaging, but falls flat at lower volumes or on energetic pop/EDM where the missing low end hurts balance.

Compared to other neutral/vocal sets like the P50 or Studio 4, the Vulkan 2 is less all-rounded due to its bass deficiency, though it offers slightly better scaling and vocal focus. Bass-centric IEMs like the Odyssey are far superior for low-end engagement. While the vocal presentation is clean and enjoyable within its niche, the $360 retail price is hard to justify. Alternatives like the Volume S (for male vocals) or the Arcanis (for a more immersive, special vocal experience) are better all-rounders that also excel with vocals. The Vulkan 2 becomes a more interesting proposition only if found significantly discounted around $200 as a specialty set for vocal-forward, less bass-dependent genres.

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Opening the serious business packaging reveals the Dunu Vulkan 2 IEMs and a mountain of accessories, including the praised SS tips and the excellent gunmetal gray cable with its satisfying connection mechanism. The build quality screams premium, easily suggesting a price tag of $300-$400 minimum just on looks and feel. The shock comes when discovering these eight-driver hybrids (two dynamics, six BAs) actually cost only $359.99, a fraction of the expected $800-$900 based purely on the sonic experience.

Listening reveals something truly special. The Vulkan 2 delivers an unrestricted sound with a huge soundstage where instruments have ample space and separation, like moving from a cramped elevator to a vast freight elevator. Bass is unapologetically real, not boosted or artificial, while detail retrieval is exceptional across the board. Critically, they achieve this with remarkable sensitivity, sounding fantastic even at whisper-quiet volumes, unlike many complex multi-driver IEMs. They create an incredibly immersive and effortless listening experience, transporting you into the music itself. This performance immediately puts them in direct competition with the previously crowned best-of-year, the Kiwi Ears Astral, despite costing nearly $100 more.

These are declared god tier IEMs. They sound phenomenal regardless of source gear, performing brilliantly on both high-end stacks and budget $200 DAC/amp combos. The Vulkan 2 is deemed absolutely worth $700-$800 in sound quality alone, making its sub-$400 price an incredible value proposition. They are so good they instantly become the pair pulled out to show people what a good IEM sounds like. For anyone saving their pennies for a top-tier in-ear experience, the Dunu Vulkan 2 is presented as an essential, nutty purchase.

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Vulkan 2 is an 8-driver hybrid (2DD+6BA) tuned for a mids-forward presentation, echoing the EJ07 approach but with DUNU's brighter, more present upper range. A modest 5 dB bass shelf and a mid-bass dip keep the low end clean and quick while pushing attention to the heart of the mix. Vocals come through emotive, textured and open; female voices gain extra energy from the upper-mids, while male vocals can pick up a touch of BA edge. This is not aimed at V-shaped preferences—engagement is built around the mids rather than big bass or treble fireworks.

Bass focuses on quality and control—tight hits, fast decay, no lingering bloom—building clear layers into the midrange. The treble is polished and natural with a gentle upper-treble roll-off: no fake air, no grain, and enough presence to surface detail without harshness. Resolution presents as resolving in a natural way and is source-revealing; added warmth or EQ tends to detract from the coherence of the stock tuning.

Stage is neat and three-dimensional with clean separation, good depth and stable imaging, though a bit more intimate than EJ07. Overall it reads as a refined, slightly brighter spin on that recipe: standout mids, disciplined and speedy bass, and a tasteful top end that favors realism over spectacle—engaging for mid-centric listeners, but genre-dependent if heavy mid-bass is required.

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Dunu takes a swing with Vulkan 2’s “Delicate” concept: a hybrid with two DD + six BA tuned for a neutral, midrange-forward presentation. Accessories are generous (modular cable with 3.5/4.4, piles of tips, huge case, famously plush microfiber) and the medium shell fits comfortably, if a bit generic in styling. The snag is the tuning—there’s a pronounced upper-bass/lower-mid dip that strips warmth and weight, making much of the music feel thin; treble is relatively even and not harsh, but the overall result comes off light, bright-by-absence-of-bass, and oddly lifeless.

Stacked against peers, Vulkan 2 feels outgunned. The original Vulkan sounds fuller in the mids even if its treble is drier; Blessing 3 can be lean but isn’t as extreme and actually presents brighter with more treble energy; Softears Volume S brings the tactility and engagement this one lacks while staying broadly neutral. For listeners explicitly seeking very low bass and a forward mid focus, this is a curiosity; for most, the tuning pushes past “lean” into unsatisfying. Verdict: a bold anti-meta idea that misses the mark, roughly a two-star experience in this bracket.