Sine Design

SB Acoustics SATORI MW13P-8

fullrange · EBP 126 → suits a ported box · nominal (full) — SB Acoustics datasheet (https://sbacoustics.com/wp-content/uploads/2021/01/5in-SATORI-MW13P-8.pdf)

Thiele/Small parameters

Fs (resonance)41.5 Hz
Qts0.3
Qes / Qms0.33 / 3.55
Vas15.0 L
Re / nominal Z6 Ω / 8 Ω
Xmax—
Sensitivity86.9 dB (1 W/1 m, calc); 87 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) — Vb3.3 L
Sealed — Fc / F397.8 / 97.8 Hz
Ported (suggested) — Vb5.6 L
Ported — Fb / F356.2 / 62.8 Hz
Open in designer →Use my measured parameters →Buy at Parts Express →

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About this driver

The SB Acoustics SATORI MW13P-8 is a 4.5″ fullrange with a free-air resonance of 41.5 Hz and a total Q (Qts) of 0.3. Its efficiency-bandwidth product (EBP) of 126 points toward a ported alignment. In a 3.3 L sealed box it reaches an F3 of 97.8 Hz (Qtc 0.707); a suggested 5.6 L box tuned to 56.2 Hz extends to about 62.8 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the SB Acoustics SATORI MW13P-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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