Sine Design

Tang Band W8-740M

subwoofer · nominal (partial) — Tang Band datasheet (https://www.tb-speaker.com/uploads/files/a7a6935f1d322510883304f2a655c2ee.pdf)

Thiele/Small parameters

Fs (resonance)30 Hz
Qts0.34
Qes / Qms— / 4.29
Vas14.7 L
Re / nominal Z3.2 Ω / 4 Ω
Xmax12.0 mm
Sensitivity82 dB (2.83 V/1 m, mfr)
Power handling150 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

T/S are partial — fetch the datasheet for the full parameters to model a box.

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About this driver

The Tang Band W8-740M is a 8″ subwoofer with a free-air resonance of 30 Hz and a total Q (Qts) of 0.34. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Tang Band W8-740M 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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