Bose QuietComfort vs Sennheiser - HD 660S2

Every tracked fact about the two, side by side - prices, history lows, ratings and measured tuning. No verdict: which one to buy is the visitor's decision, always.

Bose QuietComfort Headphones - Noise Cancellation Wireless Headphones (Lunar Blue) Bose Now ₹27,900 at AV Shack At its lowest recorded price Full prices & history

Sennheiser - HD 660S2 Open-Back Wired Headphone Sennheiser Now ₹27,990 at Headphone Zone At its lowest recorded price ★★★★★ 4.8 4.8 · 34 reviews Full prices & history

What is being compared

Both sides are headphones. The rows below are the facts each store publishes for this shelf - driver setup, impedance, sensitivity, back design and connectivity. A dash means the listing does not state that spec.

Spec Bose Sennheiser

Impedance — 300Ω

Connectivity Wireless Wired

Back design — Open-back

Active noise cancelling ANC / noise cancelling —

Measured tuning, side by side

Both curves are real community measurements (gold: Bose · ink: Sennheiser). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

Bose Sennheiser

Tuning distance ±4.75 dB RMS 72% match - Close. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.

Bass · 20–250 Hz Bose +4.9 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Bose plays louder there on the measured files; minus means Sennheiser does.

Mids · 250–2,000 Hz Bose +0.5 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Bose plays louder there on the measured files; minus means Sennheiser does.

Treble · 2,000–10,000 Hz Bose +3.5 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Bose plays louder there on the measured files; minus means Sennheiser does.

What a curve cannot seeBuild, driver QC unit-to-unit, comfort, isolation, accessories, warranty and resale value sit outside the graph - usually what the pricier one is charging for.

Price over the last 30 days

Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.

Bose QuietComfort Headphones - Noise Cancellation Wireless Headphones (Lunar Blue) Now ₹27,900 at its 30-day median Lowest on record ₹27,900 on Monday, 21st Sept, 2026 In stock at 1 tracked store

Sennheiser - HD 660S2 Open-Back Wired Headphone Now ₹27,990 at its 30-day median Lowest on record ₹27,990 on Wednesday, 7th Oct, 2026 In stock at 7 tracked stores

Price gap right now ₹90 0% of the dearer one's price.

Stores with it in stock 1 vs 7 Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.

The decision, factually

Cheaper right now Bose QuietComfort Headphones - Noise Cancellation Wireless Headphones (Lunar Blue) Lowest current price across all tracked stores - ₹27,900 vs ₹27,990.

Deepest discount ever seen Bose QuietComfort Headphones - Noise Cancellation Wireless Headphones (Lunar Blue) From each product's own recorded price history.

This page reports facts and expresses no opinion on which to purchase.

Keep going

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