Sine Design

Dayton Audio AMTHR-4

woofer · nominal (partial) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/275-096--dayton-audio-amthr-4-spec-sheet.pdf)

Thiele/Small parameters

Fs (resonance)
Qts
Qes / Qms— / —
Vas
Re / nominal Z4.06 Ω / 4 Ω
Xmax
Sensitivity94 dB (2.83 V/1 m, mfr)
Power handling25 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 Dayton Audio AMTHR-4 is a woofer. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

These tweeters could pair with the Dayton Audio AMTHR-4 in a two-way design, but the seed Thiele/Small data is too thin to grade the match yet — add or measure T/S (Fs, Sd, Xmax) to compute a real compatibility grade. You can still open a pair in the guided builder.

Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.

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