FiiO - FA9 vs TENHZ P4 Pro IEM Earphones
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.
FiiO - FA9
FiiO
Out of stock at every tracked store
Lowest ever ā¹42,499 on Saturday, 12th Sept, 2026
ā
ā
ā
ā
ā 4.3 4.3 Ā· 4 reviews
Full prices & history
TENHZ P4 Pro IEM Earphones
tenhz
Out of stock at every tracked store
Lowest ever ā¹14,371 on Thursday, 24th Sept, 2026
Full prices & history
Measured tuning, side by side
Both curves are real community measurements (gold: FiiO - FA9 Ā· ink: TENHZ P4 Pro IEM Earphones). Each is level-aligned to its own 200 Hzā1 kHz mean, so rig offsets don't skew the comparison.
FiiO - FA9
TENHZ P4 Pro IEM Earphones
Tuning distance±1.70 dB RMS90% match - Very close. Computed on a shared 40-point log grid, 20 Hzā10 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 nown/aLowest current price across all tracked stores.
Deepest discount ever seenTENHZ P4 Pro IEM EarphonesFrom each product's own recorded price history.
This page reports facts and expresses no opinion on which to purchase.