Stored Category Comparison

Noble Audio Onyx vs Thieaudio Monarch MKIII

This page compares two published iems profiles using stored summaries, source-attributed scoring, and a single lines-only radar for fast visual difference checks.

Back to Noble Audio OnyxOpen Thieaudio Monarch MKIII

Sound Profile Radar

Hover any axis point to see both stored scores for that exact category edge.

Noble Audio Onyx
Thieaudio Monarch MKIII

Category Scores

Stored score comparison

Every score is pulled from the stored product intelligence snapshot for this category pair.

AxisOnyxMonarch MKIIIDelta
Bass
8.8
8.4
-0.4
Mids
8.7
8.5
-0.2
Treble
8.6
8.4
-0.2
Technicalities
9
8.7
-0.3
Soundstage
8.9
8.8
-0.1
Value
7.3
8
+0.7

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Noble Audio Onyx can only be compared against published iems profiles.

Quick Read

Noble Audio Onyx

Across Headfonia and Bloom’s approved coverage, the Onyx comes through as a premium, neutral-warm quadbrid that majors on polish, immersion, and textured low-end power rather than exaggerated V-shape theatrics. The bass is repeatedly described as strong and controlled, the mids clear and full, and the stage spacious enough to give flagship material a convincing sense of scale. The Onyx is also framed as an endgame-style listen with upscale build and presentation. Its compromises are predictable for the class: price is steep, and its character leans more toward refined fullness and immersive richness than aggressive excitement.

Thieaudio Monarch MKIII

The Monarch MKIII kept ThieAudio's kilobuck crown relevant: a $999 tribrid whose consensus reputation is built on exceptional spatial imaging and superbly textured, balanced delivery. Headfonics rates it an excellent multi-driver IEM with power, clear vocals, and very resolving staging; MajorHiFi hears the series' best refinement yet, with placement more concise than any prior Monarch and one of the best thousand-dollar packages overall: comfort, design, and stock cable included. The debates that follow it: the MKII remains on sale at the same price with a different (warmer) signature, unit fit is large-ish, and the energetic top end rewards clean sources.

Noble Audio • IEMs

Noble Audio Onyx

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Across Headfonia and Bloom’s approved coverage, the Onyx comes through as a premium, neutral-warm quadbrid that majors on polish, immersion, and textured low-end power rather than exaggerated V-shape theatrics. The bass is repeatedly described as strong and controlled, the mids clear and full, and the stage spacious enough to give flagship material a convincing sense of scale. The Onyx is also framed as an endgame-style listen with upscale build and presentation. Its compromises are predictable for the class: price is steep, and its character leans more toward refined fullness and immersive richness than aggressive excitement.

Strengths

  • Controlled, textured low end with real flagship scale
  • Clear, full mids with strong spatial placement
  • Premium build, cable, and overall presentation

Weaknesses

  • Very expensive even in the flagship segment
  • Less overtly thrilling than more aggressive V-shaped competitors
  • Best value depends on already shopping at the endgame tier

Thieaudio • IEMs

Thieaudio Monarch MKIII

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The Monarch MKIII kept ThieAudio's kilobuck crown relevant: a $999 tribrid whose consensus reputation is built on exceptional spatial imaging and superbly textured, balanced delivery. Headfonics rates it an excellent multi-driver IEM with power, clear vocals, and very resolving staging; MajorHiFi hears the series' best refinement yet, with placement more concise than any prior Monarch and one of the best thousand-dollar packages overall: comfort, design, and stock cable included. The debates that follow it: the MKII remains on sale at the same price with a different (warmer) signature, unit fit is large-ish, and the energetic top end rewards clean sources.

Strengths

  • Exceptional spatial imaging and resolving, layered staging
  • Superbly textured, balanced tuning across the spectrum
  • Complete kilobuck package: comfort, design, and quality stock cable

Weaknesses

  • MKII coexists at the same price with a different signature, complicating choice
  • Larger shells demand fit tolerance
  • Energetic treble rewards, and punishes, source quality