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Thieaudio Monarch Mk2 vs 64 Audio U12t

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

Thieaudio Monarch Mk2
9.3
/ 10
IEMReference
HIGHER SCORE
64 Audio U12t
9.5
/ 10
IEMReference

Specs comparison

9.3/10
SCORE
9.5/10
15Ω
IMPEDANCE
12Ω
98dB
SENSITIVITY
108dB
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 64 Audio U12t scores 9.5/10 with 12Ω impedance and 108dB sensitivity. At 12Ω, it can be driven directly without extra hardware.

Based on our scoring, the 64 Audio U12t 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 →Audio U12t details →

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