Sennheiser HD 660 S2
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Sennheiser HD 660 S2
Type:full size (over-ear)
Connection:3.5 mm, 6.35 mm
Frequencies:8 – 41500 Hz
Sensitivity:104 dB
Impedance - 300 Ohms, wide frequency range, rich equipment.
All specifications
Specifications HD 660 S2
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The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Sennheiser 2026 - new arrivals, bestsellers, and the most relevant models Sennheiser.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Sennheiser 2026 - new arrivals, bestsellers, and the most relevant models Sennheiser.
Everything You Need to Know About Headphones: A Complete Technical GuideThe choice begins with understanding the design and features.
What characteristics should good headphones have?Guide to key features of headphones
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Series Sennheiser HD (overhead)Compare using chart →
overhead, open, wired, detachable cable, 3.5 mm, 4.4 mm (Pentaconn), 6.35 mm, 1.8 m, no microphone, 8 – 41500 Hz, 300 Ohm
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 10 – 39500 Hz, 300 Ohm
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 1.8 m, no microphone, 6 – 38000 Hz, 120 Ohm, 200 mW, battery: with case + maximum
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 12 – 38500 Hz, 50 Ohm, battery: with case + 1.2 m — cable with microphone
overhead, closed, combined, detachable cable, 3.5 mm, USB-C, 1.2 m, Bluetooth v5.2, AAC, aptX, active noise cancellation, 6 – 40000 Hz, 480 Ohm, battery: 700 mAh, up to 60 h
студийные, overhead, closed, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, foldable, 8 – 25000 Hz, 64 Ohm
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 12 – 40500 Hz, 300 Ohm
overhead, closed, combined, detachable cable, 3.5 mm, 1.5 m, Bluetooth v5.0, AAC, aptX, active noise cancellation, voice assistant, foldable, 18 – 22000 Hz, L-plug, battery: 600 mAh, up to 30 h
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, no microphone, 12 – 38500 Hz, 50 Ohm
overhead, closed, wired, detachable cable, 2.5 mm (micro-Jack), 1.4 m, foldable, 18 – 20000 Hz, 18 Ohm
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 10 – 41000 Hz, 150 Ohm
студийные, overhead, closed, wired, 3.5 mm, 6.35 mm, 1.8 m, no microphone, 6 – 30000 Hz, 150 Ohm
overhead, closed, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, 10 – 28000 Hz, 23 Ohm, battery: with case + 1.2 m — cable with microphone
overhead, closed, wired, detachable cable, 6.35 mm, 3 m, no microphone, 12 – 43800 Hz, 300 Ohm
for DJ, overhead, closed, wired, detachable cable, 3.5 mm, 6.35 mm, 1.5 m, no microphone, 16 – 22000 Hz, 70 Ohm
студийные, overhead, closed, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, foldable, 6 – 25000 Hz, 64 Ohm
overhead, closed, wireless, Bluetooth v5.0, AAC, aptX, foldable, 18 – 22000 Hz, battery: 320 mAh, up to 30 h
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 6 – 38000 Hz, 120 Ohm
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We recommendCompare using chart →
overhead, open, wired, detachable cable, 6.35 mm, 1.5 m, no microphone, 8 – 65000 Hz, 35 Ohm
студийные, overhead, open, wired, detachable cable, 4.4 mm (Pentaconn), 6.35 mm, no microphone
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, foldable, 12 – 34000 Hz, 120 Ohm, 1000 mW, battery: with case + maximum
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 5 – 40000 Hz, 30 Ohm, 30 mW, battery: with case + 100 мВт maximum
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 1.8 m, no microphone, 20 – 22000 Hz, 26 Ohm, 45 degree angle plug
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 10 – 39800 Hz, 62 Ohm, 200 mW, battery: with case + maximum
студийные, overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, no microphone, 5 – 50000 Hz, 60 Ohm
in-ear, wireless, true wireless, Bluetooth v5.3, AAC, LDAC, active noise cancellation, voice assistant, waterproof, 20 – 40000 Hz, battery: up to 8 h, with case + only LDAC
overhead, open, wired, detachable cable, 3.5 mm, 6.35 mm, 3 m, no microphone, 10 – 39500 Hz, 300 Ohm
студийные, overhead, open, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, 5 – 35000 Hz, 250 Ohm, 100 mW
студийные, overhead, closed, wired, 3.5 mm, 6.35 mm, 3 m, no microphone, 15 – 20000 Hz, 47 Ohm, 700 mW, battery: with case + maximum
overhead, closed, combined, detachable cable, 2.5 mm (micro-Jack), 1.2 m, Bluetooth v5.2, AAC, aptX, active noise cancellation, voice assistant, 10 – 22000 Hz, 560 Ohm, L-plug, battery: 800 mAh, up to 50 h, with case + active mode / 95 Ohm - passive mode