7Hz Eternal VS Epz K9
IEM Comparison: Expert & Community Scores Side-by-Side
7Hz Eternal and Epz K9 use 1DD and 1DD+8BA driver setups respectively. 7Hz Eternal costs $250 while Epz K9 costs $299. Epz K9 is $49 more expensive. Epz K9 holds a decisive 3.3-point edge in reviewer scores (4.3 vs 7.6). Epz K9 has significantly better bass with a 3.9-point edge, Epz K9 has significantly better mids with a 2.8-point edge, Epz K9 has significantly better treble with a 3.3-point edge, Epz K9 has significantly better dynamics with a 4.1-point edge, Epz K9 has significantly better soundstage with a 2.4-point edge, Epz K9 has significantly better details with a 3.5-point edge and Epz K9 has significantly better imaging with a 3.6-point edge.
Insights
| Metric | 7Hz Eternal | Epz K9 |
|---|---|---|
| Bass | 4.5 | 8.4 |
| Mids | 4.3 | 7 |
| Treble | 3.5 | 6.8 |
| Details | 4.3 | 7.7 |
| Soundstage | 5 | 7.4 |
| Imaging | 4.3 | 7.8 |
| Dynamics | 4 | 8.1 |
| Tonality | 4 | 7.7 |
| Technicalities | 4.9 | 7.3 |
7Hz Eternal Aggregated Review Score
Average Reviewer Scores
Epz K9 Aggregated Review Score
Average Reviewer Scores
7Hz Eternal Details
Driver Configuration: 1DD
Tuning Type: V-Shaped
Brand: 7Hz Top 7Hz IEMs
Price (Msrp): $250
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Epz K9 Details
Driver Configuration: 1DD+8BA
Tuning Type: Warm W-Shaped
Price (Msrp): $299
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7Hz Eternal User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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Epz K9 User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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7Hz Eternal Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.6Gaming Grade
CEpz K9 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.1Gaming Grade
A-7Hz Eternal Scorings
Average Technical & Tuning Grades
Average Tunign Grade
C-- Significantly flawed tuning. Noticeable frequency imbalances and unnatural timbre distract from music. Lacks versatility across recordings.
Average Technical Grade
C- Limited resolution; finer nuances are masked. Soundstage feels narrow, and complex passages cause muddiness. Transitions lack finesse.
Epz K9 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
7Hz Eternal Reviews
Reviewed by: Crin
4.5
Reviewer Score
Reviewed by: Shuwa-T
4.3
Reviewer Score
Reviewed by: Precogvision
4.1
Reviewer Score
Precogvision Youtube Channel
Epz K9 Reviews
Reviewed by: Jaytiss
2025-09-21
7.8
Reviewer Score
Jaytiss Youtube Channel
Reviewed by: Jays Audio
7.5
Reviewer Score
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.
Jays Audio Youtube Channel
Reviewed by: IEMRanking AI
2025-09-21
7.6
Reviewer Score
The EPZ K9 is a 9-driver hybrid (1DD+8BA) with a 3-way acoustic/electronic crossover, rated at 14 Ω and 108 dB sensitivity; it also ships with interchangeable 3.5 mm/4.4 mm plugs, making it easy to pair with portable sources. Retail pricing varies by region—seen around $299 at some retailers and into the low-$400s elsewhere—so value will depend on where it’s purchased.
Tonally, K9 presents a warm W-shaped balance with substantive mid-bass and a restrained but present upper-mid/treble rise, aiming for smoothness over bite. Frequency-response sets published by community sources also show insertion-depth sensitivity (deep vs shallow), which helps explain reports of “calmer” treble and broader perceived width with deeper seals.
Technical performance is competent for the segment: macro-dynamics and bass slam are a noted strength, while resolution and imaging sit a touch below the class leaders; stage is more wide than deep, but cohesive for a multi-BA hybrid. Multiple long-form impressions describe it as clean and open yet non-fatiguing, which aligns with a safe-tilt treble and fuller lower mids.
7Hz Eternal User Reviews
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