Sennheiser HD 660S2

Audiophile detail. Human price.

★★★★★ 4.7 out of 5 • 734 reviews

£379.00 25% OFF
£284.25

In stock • Free UK delivery

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🔍 Our Take

Audiophile detail without the audiophile price tag. The bass extension is noticeably improved over the original 660S — you no longer feel like you're missing the bottom octave. Pair with a decent DAC/amp (see our FiiO K7) and you'll understand why people obsess over open-back headphones.

⚙️ Specifications

type

Open-back, Over-ear

cable

Detachable, 4.4mm balanced + 6.3mm

weight

260g

frequency

8Hz - 41.5kHz

impedance

300Ω

sensitivity

104dB SPL

📋 About this product

The HD 660S2 is Sennheiser's refined open-back reference headphone, featuring a redesigned acoustic system with improved bass response while maintaining the legendary HD 6XX series midrange clarity.