Wired IEMs
64 Audio U4S
73Great
$1,100
Full review data64 Audio U4S 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.
Wired IEMs
Hisenior Mega5EST
84Outstanding
$650
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Hisenior Mega5EST leads on 4 of 4 measures.
- 64 Audio U4S
- Hisenior Mega5EST
HearWiki score
73
84
Sound
8.5
9.1
Value
6.6
8.3
Price (USD)
$1,100
$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
Both shipped in 2023. These are 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.
- U4S2023
- Mega5EST2023
Specifications
U4SMega5EST
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $1,100
- $650
- HearWiki score
- 73
- 84
- Released
- 2023
- 2023
- Availability
- Discontinued
- Still sold new
- Driver
- 1DD + 3BA hybrid
- 1DD + 2BA + 2EST tribrid
- Driver type
- hybrid
- tribrid
- Driver configuration
- 1DD + 3BA
- 1DD + 2BA + 2EST
- Driver size
- -
- 10 mm
- Drivers per side
- 4
- 5
- Impedance
- 11 Ω
- 25 Ω
- Sensitivity
- 107 dB/mW
- -
- Active noise cancelling
- No
- -
- Weight
- -
- 6 g
- Connector
- -
- 2-pin 0.78 mm
What reviewers said
64 Audio U4S
The 64 Audio U4S is a premium hybrid universal IEM that blends a dynamic driver with three balanced armatures to deliver a lively, well-rounded sound. Its tuning strikes a balance between engaging bass and clear treble, offering solid resolution and layering for a versatile listening experience. With an 11-ohm impedance and 107 dB sensitivity, it is easy to drive from most sources.
- Pro:Energetic and punchy bass response
- Pro:Smooth lower mids with fast treble
- Pro:Solid technical performance with good layering
- Con:Lower mids can feel slightly recessed
- Con:Price may be steep for some buyers
- Con:No included cable options for balanced use
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.
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