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Fosi Audio i5 Open-Back Planar Magnetic Headphones vs STAX SR-L500 MKII Electrostatic Earspeaker 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.

Fosi Audio i5 Open-Back Planar Magnetic Headphones Fosi Audio i5 Open-Back Planar Magnetic Headphones fosi Now ₹53,327 at Bloom Audio Lowest ever ₹52,568 on Sunday, 13th Sept, 2026 ★★★★★ 4.9 4.9 · 74 reviews Full prices & history

Measured tuning, side by side

Both curves are real community measurements (gold: Fosi Audio i5 Open-Back Planar Magnetic Headphones · ink: STAX SR-L500 MKII Electrostatic Earspeaker Headphone). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

201001k10k14-3-21
Fosi Audio i5 Open-Back Planar Magnetic Headphones STAX SR-L500 MKII Electrostatic Earspeaker Headphone
Tuning distance±2.91 dB RMS83% 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 nowFosi Audio i5 Open-Back Planar Magnetic HeadphonesLowest current price across all tracked stores.
Deepest discount ever seenFosi Audio i5 Open-Back Planar Magnetic HeadphonesFrom each product's own recorded price history.

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