Sennheiser HD 660 S - vs Bowers & Wilkins Px7 S3

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.

Sennheiser HD 660 S - Dynamic Open-Back Stereo Headphone Sennheiser Now ₹39,990 at AVStore Lowest on record ₹33,718 on Sunday, 4th Oct, 2026 ★★★★★ 4.8 4.8 · 470 reviews Full prices & history

Bowers & Wilkins Px7 S3 Over Ear Wireless Noise Cancelling Headphones - Anthracite Black Bowers & Wilkins Now ₹41,347 at ListenUp At its lowest recorded price 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 Sennheiser Bowers & Wilkins

Driver configuration Dynamic (DD) —

Impedance 150Ω —

Connectivity Wired —

Back design Open-back —

Measured tuning, side by side

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

Sennheiser Bowers & Wilkins

Tuning distance ±9.16 dB RMS 45% 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 Sennheiser −11.4 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Sennheiser plays louder there on the measured files; minus means Bowers & Wilkins does.

Mids · 250–2,000 Hz Sennheiser +0.9 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Sennheiser plays louder there on the measured files; minus means Bowers & Wilkins does.

Treble · 2,000–10,000 Hz Sennheiser −1.1 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Sennheiser plays louder there on the measured files; minus means Bowers & Wilkins 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.

Sennheiser HD 660 S - Dynamic Open-Back Stereo Headphone Now ₹39,990 Lowest on record ₹33,718 on Sunday, 4th Oct, 2026 In stock at 1 tracked store

Bowers & Wilkins Px7 S3 Over Ear Wireless Noise Cancelling Headphones - Anthracite Black Now ₹41,347 Lowest on record ₹41,347 on Tuesday, 6th Oct, 2026 In stock at 1 tracked store

Price gap right now ₹1,357 3% of the dearer one's price.

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

The decision, factually

Cheaper right now Sennheiser HD 660 S - Dynamic Open-Back Stereo Headphone Lowest current price across all tracked stores - ₹39,990 vs ₹41,347.

Deepest discount ever seen Sennheiser HD 660 S - Dynamic Open-Back Stereo Headphone From each product's own recorded price history.

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

Keep going

EQ preset: Sennheiser EQ preset: Bowers & Wilkins All Headphones More comparisons