Sine Design

Seas EXOTIC-W8

woofer · EBP 144 → suits a ported box · nominal (full) — Seas datasheet (https://www.seas.no/images/stories/exotic/pdf_datasheet/x2-08_exotic-w8.pdf)

Thiele/Small parameters

Fs (resonance)36 Hz
Qts0.24
Qes / Qms0.25 / 5.1
Vas78.0 L
Re / nominal Z6 Ω / 8 Ω
Xmax
Sensitivity93.5 dB (1 W/1 m, calc); 94 dB (2.83 V/1 m, mfr)
Power handling100 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb10.2 L
Sealed — Fc / F3106.0 / 106.1 Hz
Ported (suggested) — Vb14.1 L
Ported — Fb / F361.2 / 76.3 Hz

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About this driver

The Seas EXOTIC-W8 is a 8″ woofer with a free-air resonance of 36 Hz and a total Q (Qts) of 0.24. Its efficiency-bandwidth product (EBP) of 144 points toward a ported alignment. In a 10.2 L sealed box it reaches an F3 of 106.1 Hz (Qtc 0.707); a suggested 14.1 L box tuned to 61.2 Hz extends to about 76.3 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Seas EXOTIC-W8 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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