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Side-by-side comparison — scores, specs and which one fits your setup.
Specs comparison
Analysis
The HiFiMAN Ananda scores 8.7/10 with 25Ω impedance and 103dB sensitivity. At 25Ω, it benefits significantly from a dedicated amplifier.
The Sennheiser HD 660S2 scores 9.1/10 with 300Ω impedance and 104dB sensitivity. At 300Ω, it also benefits from amplification to perform at its best.
Based on our scoring, the Sennheiser HD 660S2 scores higher overall. However, the right choice depends on your full audio chain — use our analyzer to see which fits your actual setup.
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A high headphone score doesn't mean your audio sounds great. Your DAC, amp or source might be the real bottleneck.