Sine Design

Dayton Audio RS180S-8

woofer · EBP 77 → suits either box · nominal (full) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/295-364--dayton-audio-rs180s-8-reference-woofer-8-ohm-specifications.pdf)

Thiele/Small parameters

Fs (resonance)37.7 Hz
Qts0.36
Qes / Qms0.49 / 1.45
Vas23.0 L
Re / nominal Z6.4 Ω / 8 Ω
Xmax6.0 mm
Sensitivity85.8 dB (1 W/1 m, calc); 86.9 dB (2.83 V/1 m, mfr)
Power handling60 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb8.1 L
Sealed — Fc / F374.0 / 74.0 Hz
Ported (suggested) — Vb15.8 L
Ported — Fb / F342.4 / 43.5 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The Dayton Audio RS180S-8 is a 6″ woofer with a free-air resonance of 37.7 Hz and a total Q (Qts) of 0.36. Its efficiency-bandwidth product (EBP) of 77 points toward either alignment. In a 8.1 L sealed box it reaches an F3 of 74.0 Hz (Qtc 0.707); a suggested 15.8 L box tuned to 42.4 Hz extends to about 43.5 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Dayton Audio RS180S-8 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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