Sennheiser HD 4.40 BT - Wireless Headphone vs ZMF - Auteur (B-Stock)
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 4.40 BT - Wireless Headphone
Sennheiser
Out of stock at every tracked store
Lowest ever ₹7,490 on Saturday, 12th Sept, 2026
★★★★★ 4.8 4.8 · 470 reviews
Full prices & history
Measured tuning, side by side
Both curves are real community measurements (gold: Sennheiser HD 4.40 BT - Wireless Headphone · ink: ZMF - Auteur (B-Stock)). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.
Sennheiser HD 4.40 BT - Wireless Headphone
ZMF - Auteur (B-Stock)
Tuning distance±2.17 dB RMS87% match - Very close. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.
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.
The decision, factually
Cheaper right nowZMF - Auteur (B-Stock)Lowest current price across all tracked stores.
Deepest discount ever seenSennheiser HD 4.40 BT - Wireless HeadphoneFrom each product's own recorded price history.
This page reports facts and expresses no opinion on which to purchase.