Dayton Audio PA255-8
woofer · EBP 77 → suits either box · nominal (full) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/295-030-dayton-audio-pa255-8-specifications-46882.pdf)
Thiele/Small parameters
| Fs (resonance) | 50.5 Hz |
| Qts | 0.61 |
| Qes / Qms | 0.66 / 8.49 |
| Vas | 41.2 L |
| Re / nominal Z | 5.5 Ω / 8 Ω |
| Xmax | 5.0 mm |
| Sensitivity | 90.9 dB (1 W/1 m, calc); 92.6 dB (2.83 V/1 m, mfr) |
| Power handling | 300 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 120.0 L |
| Sealed — Fc / F3 | 58.5 / 58.5 Hz |
| Ported (suggested) — Vb | 161.3 L |
| Ported — Fb / F3 | 33.1 / 28.6 Hz |
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About this driver
The Dayton Audio PA255-8 is a 10.5″ woofer with a free-air resonance of 50.5 Hz and a total Q (Qts) of 0.61. Its efficiency-bandwidth product (EBP) of 77 points toward either alignment. In a 120.0 L sealed box it reaches an F3 of 58.5 Hz (Qtc 0.707); a suggested 161.3 L box tuned to 33.1 Hz extends to about 28.6 Hz. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the Dayton Audio PA255-8 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.
- Tang Band W8-2314Good match· 89/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas M64F001Good match· 86/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Eminence ALPHA-4-4Good match· 84/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Eminence ALPHA-4-8Good match· 84/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Visaton BG13P-8Good match· 84/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Visaton FR10HM-8Good match· 84/100
Suggested crossover 784 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.