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Hisenior Mega5EST vs THIEAUDIO Monarch MKIV: which should you buy?

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

Our pick: THIEAUDIO Monarch MKIV - Outstanding overall at around $1149.

Score breakdown

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

Neither pulls ahead overall - they trade wins across the measures.

  • Hisenior Mega5EST
  • THIEAUDIO Monarch MKIV
HearWiki score
80
84
Sound
9.1
9.4
Value
8.3
7.6
Price (USD)
$650
$1,150

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 THIEAUDIO Monarch MKIV 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.

  • Mega5EST2023
  • Monarch MKIV20252 yr newer

Specifications

Mega5ESTMonarch MKIV
Type
Wired IEMs
Wired IEMs
Price (USD)
$650
$1,150
HearWiki score
80
84
Released
2023
2025
Availability
Discontinued
Sold new
Driver
1DD + 2BA + 2EST tribrid
2DD + 6BA + 2EST tribrid
Driver type
tribrid
tribrid
Driver configuration
1DD + 2BA + 2EST
2DD + 6BA + 2EST
Driver size
10 mm
8 mm
Drivers per side
5
10
Impedance
25 Ω
-
Weight
6 g
-
Connector
2-pin 0.78 mm
-

What reviewers said

Hisenior Mega5EST

The Hisenior Mega5EST is a tribrid in-ear monitor that blends a dynamic driver, dual balanced armatures, and dual electrostatic drivers into a smooth, enjoyable tuning. It prioritizes a cohesive and musical listen over clinical precision, wrapped in a premium build with a generous accessory kit. The main letdown is cosmetic, with the shell color not quite matching the faceplates, though performance-wise it's a strong all-rounder for its price.

  • Pro:Enjoyable, well-balanced tuning with broad appeal
  • Pro:High-quality construction and included accessories
  • Pro:Cohesive sound across drivers without harshness
  • Con:Shell color doesn't match the faceplates aesthetically
  • Con:Not aimed at listeners wanting extreme technical detail
  • Con:Lacks noise cancellation features

THIEAUDIO Monarch MKIV

This flagship in-ear monitor packs a ten-driver hybrid setup—pairing dual 8mm dynamics with six balanced armatures and two electrostatic tweeters—to deliver a reference-grade, studio-neutral signature. It also offers a switchable RUMBLE mode for those who prefer a more pronounced low-end, catering to both purists and bass enthusiasts. The wired-only design focuses on audiophile-grade sound without active noise cancellation.

  • Pro:Reference-neutral tuning with optional bass boost
  • Pro:Layered, detailed treble from dual electrostats
  • Pro:Solid build and premium fit for long sessions
  • Con:No wireless or ANC options
  • Con:Large shell may not suit smaller ears
  • Con:Requires a quality source to shine fully

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

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