Campfire Audio Supermoon 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.

Wired IEMs

Score breakdown

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

THIEAUDIO Monarch MKIV leads on 4 of 4 measures.

Campfire Audio Supermoon
THIEAUDIO Monarch MKIV

HearWiki score

Sound

8.6

9.4

Value

7.5

7.6

Price (USD)

$1,300

$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 3 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. For 3 years between them, that is a thin return - treat this as a restyle rather than a new platform.

Supermoon2022
Monarch MKIV20253 yr newer

Specifications

SupermoonMonarch MKIV

Type: Wired IEMs; Wired IEMs
Price (USD): $1,300; $1,150
HearWiki score: 71; 84
Released: 2022; 2025
Availability: Discontinued; Sold new
Driver: 14 mm planar magnetic; 2DD + 6BA + 2EST tribrid
Driver type: planar; tribrid
Driver configuration: -; 2DD + 6BA + 2EST
Driver size: 14 mm; 8 mm
Drivers per side: 1; 10
Frequency response: 5 Hz - 20 kHz; -
Impedance: 15.5 Ω; -
Sensitivity: 94 dB/mW; -
Active noise cancelling: No; -
Weight: 9 g; -
Detachable cable: Yes; -
Connector: 4.4 mm balanced; -

Specification comparison of Campfire Audio Supermoon vs THIEAUDIO Monarch MKIV
Spec	Campfire Audio Supermoon	THIEAUDIO Monarch MKIV
Type	Wired IEMs	Wired IEMs
Price (USD)	$1,300	$1,150
HearWiki score	71 / 100 Good	84 / 100 Outstanding
Released	2022	2025
Audio
Driver	14 mm planar magnetic	2DD + 6BA + 2EST tribrid
Driver type	planar	tribrid
Driver configuration	-	2DD + 6BA + 2EST
Driver size	14 mm	8 mm
Drivers per side	1	10
Frequency response	5 Hz - 20 kHz	-
Impedance	15.5 Ω	-
Sensitivity	94 dB/mW	-
Features
Active noise cancelling	No	-
Design
Weight	9 g	-
Detachable cable	Yes	-
Connector	4.4 mm balanced	-

What reviewers said

Campfire Audio Supermoon

The Campfire Audio Supermoon is a premium single-driver planar IEM that delivers a lively, bass-strong, and highly detailed sound signature with impressive clarity and imaging. While its low impedance and moderate sensitivity mean it benefits from a quality source or amplifier, its lightweight build, excellent resolution, and energetic treble make it a standout technical performer in the high-end category.

Pro:Excellent resolution and detail retrieval
Pro:Engaging, bass-strong sound with clear vocals
Pro:Lightweight and well-built with detachable cable

Con:Bright treble may be too energetic for some
Con:Needs extra power despite low impedance
Con:Upper-mid push can cause glare on certain tracks

THIEAUDIO Monarch MKIV

The Monarch MKIV is a flagship in-ear monitor built around a ten-driver tribrid configuration, blending dual 8mm dynamic drivers, six balanced armatures, and two electrostatic tweeters. It offers a studio-neutral sound signature with an additional switchable bass-boost mode for listeners who prefer a more impactful low end.

Pro:Reference-grade neutral tuning with excellent clarity
Pro:Versatile bass boost mode adds flexibility
Pro:Detailed and extended treble from electrostatic tweeters

Con:High price point limits accessibility
Con:Requires a capable source to perform at its best
Con:Large shell may not suit smaller ears

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

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