Sine Design

Wavecor SW270WA01

subwoofer · EBP 53 → suits either box · nominal (full) — Wavecor datasheet (http://www.wavecor.com/Driver%20specifications%20PDF/SW270WA01_specifications.pdf)

Thiele/Small parameters

Fs (resonance)28 Hz
Qts0.49
Qes / Qms0.53 / 8.1
Vas51.0 L
Re / nominal Z3.2 Ω / 4 Ω
Xmax11.0 mm
Sensitivity85.1 dB (1 W/1 m, calc); 88 dB (2.83 V/1 m, mfr)
Power handling150 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb47.1 L
Sealed — Fc / F340.4 / 40.4 Hz
Ported (suggested) — Vb96.9 L
Ported — Fb / F322.9 / 20.7 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The Wavecor SW270WA01 is a 10″ subwoofer with a free-air resonance of 28 Hz and a total Q (Qts) of 0.49. Its efficiency-bandwidth product (EBP) of 53 points toward either alignment. In a 47.1 L sealed box it reaches an F3 of 40.4 Hz (Qtc 0.707); a suggested 96.9 L box tuned to 22.9 Hz extends to about 20.7 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Wavecor SW270WA01 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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