Sine Design

Faital Pro 18FX600

subwoofer · EBP 103 → suits a ported box · nominal (full) — Faital Pro datasheet (https://faitalpro.com/products/files/18FX600/8/18FX600_datasheet_8.pdf)

Thiele/Small parameters

Fs (resonance)32 Hz
Qts0.3
Qes / Qms0.31 / 9.8
Vas257.3 L
Re / nominal Z5 Ω / 8 Ω
Xmax11.3 mm
Sensitivity96.2 dB (1 W/1 m, calc); 99 dB (2.83 V/1 m, mfr)
Power handling700 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb56.5 L
Sealed — Fc / F375.4 / 75.4 Hz
Ported (suggested) — Vb96.8 L
Ported — Fb / F343.3 / 48.4 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The Faital Pro 18FX600 is a 19.5″ subwoofer with a free-air resonance of 32 Hz and a total Q (Qts) of 0.3. Its efficiency-bandwidth product (EBP) of 103 points toward a ported alignment. In a 56.5 L sealed box it reaches an F3 of 75.4 Hz (Qtc 0.707); a suggested 96.8 L box tuned to 43.3 Hz extends to about 48.4 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Faital Pro 18FX600 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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