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Side-by-side comparison — scores, specs and which one fits your setup.
Specs comparison
Analysis
The Master & Dynamic MH40 scores 7.8/10 with 64Ω impedance and 94dB sensitivity. At 64Ω, it drives well from most phones without an external amp.
The AKG K845BT scores 7.8/10 with 32Ω impedance and 98dB sensitivity. At 32Ω, it can be driven directly without extra hardware.
Both headphones score equally. The best choice depends on your full audio chain — use our analyzer to find your actual bottleneck.
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.