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FATfreq x Effect Audio: Quantum - Full Set (Batch 3 Special - Black + Blue + SuperStage) / Effect Audio Ares S II (4.4mm Balanced + ConX) vs Open Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US)

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.

Measured tuning, side by side

Both curves are real community measurements (gold: FATfreq x Effect Audio: Quantum - Full Set (Batch 3 Special - Black + Blue + SuperStage) / Effect Audio Ares S II (4.4mm Balanced + ConX) · ink: Open Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US)). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

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FATfreq x Effect Audio: Quantum - Full Set (Batch 3 Special - Black + Blue + SuperStage) / Effect Audio Ares S II (4.4mm Balanced + ConX) Open Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US)
Tuning distance±1.15 dB RMS93% 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 nowFATfreq x Effect Audio: Quantum - Full Set (Batch 3 Special - Black + Blue + SuperStage) / Effect Audio Ares S II (4.4mm Balanced + ConX)Lowest current price across all tracked stores.
Deepest discount ever seenOpen Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US)From each product's own recorded price history.

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