Sine Design

Tang Band W8-2145

fullrange · EBP 66 → suits either box · nominal (full) — Tang Band datasheet (https://www.tb-speaker.com/uploads/files/2191916292e544be41a8692f8c5aae4e.pdf)

Thiele/Small parameters

Fs (resonance)40 Hz
Qts0.45
Qes / Qms0.61 / 1.65
Vas67.7 L
Re / nominal Z— / —
Xmax3.0 mm
Sensitivity90 dB (2.83 V/1 m, mfr)
Power handling40 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

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

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About this driver

The Tang Band W8-2145 is a 8″ fullrange with a free-air resonance of 40 Hz and a total Q (Qts) of 0.45. Its efficiency-bandwidth product (EBP) of 66 points toward either alignment. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Tang Band W8-2145 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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