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Audio-Technica ATH-R70x Headphone - [RED] 1.5m Single-Ended 6.35mm (1/4in) vs Sennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired Headphone

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.

Audio-Technica ATH-R70x Headphone - [RED] 1.5m Single-Ended 6.35mm (1/4in) Audio-Technica ATH-R70x Headphone - [RED] 1.5m Single-Ended 6.35mm (1/4in) Audio-Technica Out of stock at every tracked store Lowest ever ₹33,438 on Thursday, 24th Sept, 2026 Full prices & history
Sennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired Headphone Sennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired Headphone Sennheiser Now ₹29,800 at AV Shack Lowest ever ₹29,800 on Monday, 21st Sept, 2026 ★★★★★ 4.6 4.6 · 10 reviews Full prices & history

Measured tuning, side by side

Both curves are real community measurements (gold: Audio-Technica ATH-R70x Headphone - [RED] 1.5m Single-Ended 6.35mm (1/4in) · ink: Sennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired Headphone). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

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Audio-Technica ATH-R70x Headphone - [RED] 1.5m Single-Ended 6.35mm (1/4in) Sennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired Headphone
Tuning distance±1.58 dB RMS91% 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 nowSennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired HeadphoneLowest current price across all tracked stores.
Deepest discount ever seenSennheiser HD 660S2 - Open‑Back Hi-Res Audiophile Wired HeadphoneFrom each product's own recorded price history.

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