Sine Design

Dayton Audio RS150-4

woofer · EBP 113 → suits a ported box · nominal (full) — Dayton Audio RS150-4 spec sheet (manufacturer)

Thiele/Small parameters

Fs (resonance)45.1 Hz
Qts0.33
Qes / Qms0.4 / 1.96
Vas16.4 L
Re / nominal Z3.1 Ω / 4 Ω
Xmax4.4 mm
Sensitivity87.6 dB (1 W/1 m, calc); 91.8 dB (2.83 V/1 m, mfr)
Power handling40 W

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

Recommended enclosures

Sealed (Qtc 0.707) — Vb4.6 L
Sealed — Fc / F396.6 / 96.6 Hz
Ported (suggested) — Vb8.5 L
Ported — Fb / F355.4 / 59.2 Hz
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About this driver

The Dayton Audio RS150-4 is a 6″ woofer with a free-air resonance of 45.1 Hz and a total Q (Qts) of 0.33. Its efficiency-bandwidth product (EBP) of 113 points toward a ported alignment. In a 4.6 L sealed box it reaches an F3 of 96.6 Hz (Qtc 0.707); a suggested 8.5 L box tuned to 55.4 Hz extends to about 59.2 Hz. See the sealed vs ported guide for how to choose.

NOMINAL/manufacturer (Dayton spec sheet). Fs 45.1 Hz; Vas 16.4 L; Sd 85 cm2; BL 4.1 Tm; Mms 7.7 g; sensitivity 91.8 dB (2.83V/1m); usable 48-4000 Hz; Xmax 4.4 mm; 40 W. Aluminum Reference cone (sharp metal breakup above the passband - cross >=2 oct below; datasheet prints no breakup-peak Hz). Earlier seed (Fs 45, 87 dB, 80 W) was headline - corrected to datasheet.

Recommended partners

modeled estimate

The tweeters below pair well with the Dayton Audio RS150-4 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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