Sine Design

Tang Band W4-2315

tweeter · EBP 210 → suits a ported box · nominal (full) — Tang Band datasheet (https://www.tb-speaker.com/uploads/files/09a7d38537ec0a6c9f3d32e50f2ca20d.pdf)

Thiele/Small parameters

Fs (resonance)65 Hz
Qts0.29
Qes / Qms0.31 / 3.68
Vas5.0 L
Re / nominal Z3.6 Ω / 4 Ω
Xmax2.8 mm
Sensitivity88.3 dB (1 W/1 m, calc); 88 dB (2.83 V/1 m, mfr)
Power handling30 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

This is a tweeter; Thiele/Small box parameters are not used for enclosure design.

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About this driver

The Tang Band W4-2315 is a 4.5″ tweeter with a free-air resonance of 65 Hz and a total Q (Qts) of 0.29. Its efficiency-bandwidth product (EBP) of 210 points toward a ported alignment. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The woofers and midranges below pair well with the Tang Band W4-2315 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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