Koss - Porta Pro vs Sennheiser HD 650 Open Back Headphones

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.

Koss - Porta Pro Koss Now ₹3,999 at Headphone Zone Lowest ever ₹3,999 on Saturday, 12th Sept, 2026 ★★★★★ 4.5 4.5 · 75 reviews Full prices & history

Sennheiser HD 650 Open Back Headphones Sennheiser Now ₹23,990 at Headphone Zone Lowest ever ₹23,904 on Thursday, 1st Oct, 2026 ★★★★★ 4.9 4.9 · 79 reviews Full prices & history

Measured tuning, side by side

Both curves are real community measurements (gold: Koss - Porta Pro · ink: Sennheiser HD 650 Open Back Headphones). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

Koss - Porta Pro Sennheiser HD 650 Open Back Headphones

Tuning distance±2.65 dB RMS84% match - 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 nowKoss - Porta ProLowest current price across all tracked stores - ₹3,999 vs ₹23,990.

Deepest discount ever seenKoss - Porta ProFrom each product's own recorded price history.

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