Sine Design

SB Acoustics SB42FHCL75-6

subwoofer · nominal (partial) — SB Acoustics datasheet (https://sbacoustics.com/wp-content/uploads/2020/03/15in-SB42FHCL75-6.pdf)

Thiele/Small parameters

Fs (resonance)18.4 Hz
Qts0.31
Qes / Qms— / 7.4
Vas462.0 L
Re / nominal Z— / 6 Ω
Xmax—
Sensitivity93 dB (2.83 V/1 m, mfr)
Power handling300 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 SB Acoustics SB42FHCL75-6 is a 16″ subwoofer with a free-air resonance of 18.4 Hz and a total Q (Qts) of 0.31. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the SB Acoustics SB42FHCL75-6 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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