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EPZ K9 vs Hisenior Mega5EST: which should you buy?

On aggregated review scores the Hisenior Mega5EST comes out ahead with a HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Hisenior Mega5EST - Outstanding overall at around $649.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Hisenior Mega5EST leads on 3 of 4 measures.

  • EPZ K9
  • Hisenior Mega5EST
HearWiki score
72
84
Sound
7.6
9.1
Value
6.9
8.3
Price (USD)
$350
$650

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

The EPZ K9 is 2 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

  • K920252 yr newer
  • Mega5EST2023

Specifications

K9Mega5EST
Type
Wired IEMs
Wired IEMs
Price (USD)
$350
$650
HearWiki score
72
84
Released
2025
2023
Availability
Sold new
Still sold new
Driver
1DD + 8BA hybrid
1DD + 2BA + 2EST tribrid
Driver type
hybrid
tribrid
Driver configuration
1DD + 8BA
1DD + 2BA + 2EST
Driver size
8 mm
10 mm
Drivers per side
9
5
Impedance
-
25 Ω
Active noise cancelling
No
-
Weight
-
6 g
Connector
2-pin 0.78 mm
2-pin 0.78 mm

What reviewers said

EPZ K9

The EPZ K9 is a wired hybrid IEM that pairs a single dynamic driver with eight balanced armatures to deliver a smooth, warm, and musical signature. It offers strong detail retrieval, a wide soundstage, and a versatile balance that suits a broad range of genres, all wrapped in a distinctive design with quality accessories. While its treble sparkle and spatial precision aren't class-leading, it stands out as a refined, coherent listen for the price.

  • Pro:Warm, balanced, and highly versatile tuning
  • Pro:Strong detail and airy presentation with good bass impact
  • Pro:Wide staging and lush mids
  • Con:Treble sparkle is not its strongest trait
  • Con:Spatial cleanliness could be better
  • Con:May not suit listeners seeking aggressive or bright signatures

Hisenior Mega5EST

The Hisenior Mega5EST is a premium wired tribrid IEM that pairs a dynamic driver, dual balanced armatures, and dual electrostatic drivers for a cohesive, engaging sound. Its tuning leans toward musical enjoyment rather than clinical analysis, wrapped in a lightweight, well-built shell with a generous accessory set. The overall presentation is balanced and easy to listen to, making it a versatile choice for those seeking high-end performance without fatigue.

  • Pro:Engaging, pleasure-oriented tuning that remains balanced and cohesive
  • Pro:Premium build quality with a lightweight, comfortable fit
  • Pro:Includes a robust accessory set and quality cable
  • Con:Shell color may not perfectly match the faceplates aesthetically
  • Con:Tuning favors broad appeal over extreme technical precision
  • Con:No active noise cancellation, limiting isolation to passive means

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

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New comparisonEPZ K9Hisenior Mega5EST