Home / Headphones / Compare

Abyss AB-1266 Phi TC vs Thieaudio Monarch Mk2

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

Abyss AB-1266 Phi TC
9.2
/ 10
Over-earReference
HIGHER SCORE
Thieaudio Monarch Mk2
9.3
/ 10
IEMReference

Specs comparison

9.2/10
SCORE
9.3/10
64Ω
IMPEDANCE
15Ω
86dB
SENSITIVITY
98dB
Yes
NEEDS AMP
No

Analysis

The Abyss AB-1266 Phi TC scores 9.2/10 with 64Ω impedance and 86dB sensitivity. At 64Ω, it benefits significantly from a dedicated amplifier.

The Thieaudio Monarch Mk2 scores 9.3/10 with 15Ω impedance and 98dB sensitivity. At 15Ω, 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 →Phi TC details →Monarch Mk2 details →

Similar comparisons

Abyss AB-1266 Phi TC vs HiFiMAN Arya StealthCompare →Abyss AB-1266 Phi TC vs Audeze LCD-2Compare →Abyss AB-1266 Phi TC vs Audeze LCD-XCompare →Abyss AB-1266 Phi TC vs Sennheiser HD 800SCompare →