Sine Design

Faital Pro 8HX150

woofer · EBP 177 → suits a ported box · nominal (full) — Faital Pro datasheet (https://faitalpro.com/products/files/8HX150/8/8HX150_datasheet_8.pdf)

Thiele/Small parameters

Fs (resonance)76 Hz
Qts0.41
Qes / Qms0.43 / 9.5
Vas13.0 L
Re / nominal Z— / 8 Ω
Xmax4.9 mm
Sensitivity93.1 dB (1 W/1 m, calc)
Power handling250 W

Published (nominal) values, params full — verify by measurement (DATS/REW) before building.

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb6.6 L
Sealed — Fc / F3131.1 / 131.1 Hz
Ported (suggested) — Vb13.7 L
Ported — Fb / F374.8 / 72.4 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The Faital Pro 8HX150 is a 8″ woofer with a free-air resonance of 76 Hz and a total Q (Qts) of 0.41. Its efficiency-bandwidth product (EBP) of 177 points toward a ported alignment. In a 6.6 L sealed box it reaches an F3 of 131.1 Hz (Qtc 0.707); a suggested 13.7 L box tuned to 74.8 Hz extends to about 72.4 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Faital Pro 8HX150 in a two-way design — each grade is a modeled estimate of the crossover match, with a suggested crossover point. Open any pair in the guided builder to design the crossover and total the parts.

Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.

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