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Thieaudio Monarch Mk2 vs Sennheiser Momentum 4

Side-by-side comparison — scores, specs and which one fits your setup.

HIGHER SCORE
Thieaudio Monarch Mk2
9.3
/ 10
IEMReference
Sennheiser Momentum 4
8.1
/ 10
Over-earHigh end

Specs comparison

9.3/10
SCORE
8.1/10
15Ω
IMPEDANCE
18Ω
98dB
SENSITIVITY
107dB
No
NEEDS AMP
No

Analysis

The Thieaudio Monarch Mk2 scores 9.3/10 with 15Ω impedance and 98dB sensitivity. At 15Ω, it drives well from most phones without an external amp.

The Sennheiser Momentum 4 scores 8.1/10 with 18Ω impedance and 107dB sensitivity. At 18Ω, it can be driven directly without extra hardware.

Based on our scoring, the Thieaudio Monarch Mk2 scores higher overall. However, the right choice depends on your full audio chain — use our analyzer to see which fits your actual setup.

Own one of these headphones?

A high headphone score doesn't mean your audio sounds great. Your DAC, amp or source might be the real bottleneck.

Analyze my setup →Monarch Mk2 details →Momentum 4 details →

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