Dayton Audio RSS315HO-4
subwoofer · EBP 79 → suits either box · nominal (full) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/295-466-dayton-audio-rss315ho-4-specifications-46175.pdf)
Thiele/Small parameters
| Fs (resonance) | 26.2 Hz |
| Qts | 0.31 |
| Qes / Qms | 0.33 / 3.63 |
| Vas | 53.7 L |
| Re / nominal Z | 3.2 Ω / 4 Ω |
| Xmax | 12.3 mm |
| Sensitivity | 86.5 dB (1 W/1 m, calc); 90.5 dB (2.83 V/1 m, mfr) |
| Power handling | 700 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 12.8 L |
| Sealed — Fc / F3 | 59.8 / 59.8 Hz |
| Ported (suggested) — Vb | 22.5 L |
| Ported — Fb / F3 | 34.3 / 37.7 Hz |
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About this driver
The Dayton Audio RSS315HO-4 is a 12.5″ subwoofer with a free-air resonance of 26.2 Hz and a total Q (Qts) of 0.31. Its efficiency-bandwidth product (EBP) of 79 points toward either alignment. In a 12.8 L sealed box it reaches an F3 of 59.8 Hz (Qtc 0.707); a suggested 22.5 L box tuned to 34.3 Hz extends to about 37.7 Hz. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the Dayton Audio RSS315HO-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.
- Tang Band W8-2314Good match· 92/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band 75-1558SHGood match· 90/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas MR18REX-XFGood match· 87/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Eminence ALPHA-4-4Good match· 84/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Eminence ALPHA-4-8Good match· 84/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W4-1749SGood match· 84/100
Suggested crossover 643 Hz (4th-order, Linkwitz-Riley)
Build this pair →
Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.