Seas A26RE4
subwoofer · EBP 58 → suits either box · nominal (full) — Seas datasheet (https://www.seas.no/images/stories/prestige/pdfdatasheet/H1411_A26RE4_Datasheet.pdf)
Thiele/Small parameters
| Fs (resonance) | 25 Hz |
| Qts | 0.39 |
| Qes / Qms | 0.43 / 3.84 |
| Vas | 169.0 L |
| Re / nominal Z | 6.3 Ω / 8 Ω |
| Xmax | — |
| Sensitivity | 89.7 dB (1 W/1 m, calc); 89 dB (2.83 V/1 m, mfr) |
| Power handling | 80 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 73.9 L |
| Sealed — Fc / F3 | 45.3 / 45.3 Hz |
| Ported (suggested) — Vb | 151.2 L |
| Ported — Fb / F3 | 25.9 / 25.6 Hz |
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About this driver
The Seas A26RE4 is a 10.5″ subwoofer with a free-air resonance of 25 Hz and a total Q (Qts) of 0.39. Its efficiency-bandwidth product (EBP) of 58 points toward either alignment. In a 73.9 L sealed box it reaches an F3 of 45.3 Hz (Qtc 0.707); a suggested 151.2 L box tuned to 25.9 Hz extends to about 25.6 Hz. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the Seas A26RE4 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.
- Seas MR18REX-XFGood match· 92/100
Suggested crossover 780 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band 75-1558SHGood match· 92/100
Suggested crossover 780 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W8-2314Good match· 92/100
Suggested crossover 780 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W4-1749SGood match· 89/100
Suggested crossover 780 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W4-2315Good match· 89/100
Suggested crossover 780 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W4-937SFGood match· 89/100
Suggested crossover 780 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.