Sine Design

Dayton Audio PS220-8

fullrange · EBP 116 → suits a ported box · nominal (full) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/PS220-8%208_%20Point%20Source%20Full-Range%20Neo%20Driver%20Specification%20Sheet.pdf)

Thiele/Small parameters

Fs (resonance)46.4 Hz
Qts0.38
Qes / Qms0.4 / 5.73
Vas90.2 L
Re / nominal Z6.2 Ω / 8 Ω
Xmax4.8 mm
Sensitivity95.4 dB (1 W/1 m, calc); 96.5 dB (2.83 V/1 m, mfr)
Power handling40 W

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

Sealed (Qtc 0.707) — Vb36.6 L
Sealed — Fc / F386.3 / 86.3 Hz
Ported (suggested) — Vb74.0 L
Ported — Fb / F349.3 / 49.4 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The Dayton Audio PS220-8 is a 8″ fullrange with a free-air resonance of 46.4 Hz and a total Q (Qts) of 0.38. Its efficiency-bandwidth product (EBP) of 116 points toward a ported alignment. In a 36.6 L sealed box it reaches an F3 of 86.3 Hz (Qtc 0.707); a suggested 74.0 L box tuned to 49.3 Hz extends to about 49.4 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Dayton Audio PS220-8 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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