Sine Design

Eminence NSW6021-6

subwoofer · EBP 94 → suits either box · nominal (full) — Eminence datasheet (https://cdn.shopify.com/s/files/1/0270/8665/1462/files/NSW6021_6.pdf)

Thiele/Small parameters

Fs (resonance)29 Hz
Qts0.31
Qes / Qms0.31 / 15.35
Vas224.6 L
Re / nominal Z3.8 Ω / —
Xmax21.0 mm
Sensitivity—

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 Eminence NSW6021-6 is a 22.5″ subwoofer with a free-air resonance of 29 Hz and a total Q (Qts) of 0.31. Its efficiency-bandwidth product (EBP) of 94 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 Eminence NSW6021-6 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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