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Side-by-side comparison — scores, specs and which one fits your setup.
Specs comparison
Analysis
The Audeze LCD-2 scores 9.1/10 with 70Ω impedance and 101dB sensitivity. At 70Ω, 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.
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.