Seas MCA15RCY
midrange · EBP 170 → suits a ported box · nominal (full) — Seas datasheet (https://www.seas.no/images/stories/prestige/pdfdatasheet/H1262_MCA15RCY_Datasheet.pdf)
Thiele/Small parameters
| Fs (resonance) | 51 Hz |
| Qts | 0.25 |
| Qes / Qms | 0.3 / 1.57 |
| Vas | 12.0 L |
| Re / nominal Z | — / 8 Ω |
| Xmax | — |
| Sensitivity | 89.1 dB (1 W/1 m, calc) |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
This is a midrange; Thiele/Small box parameters are not used for enclosure design.
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About this driver
The Seas MCA15RCY is a midrange with a free-air resonance of 51 Hz and a total Q (Qts) of 0.25. Its efficiency-bandwidth product (EBP) of 170 points toward a ported alignment. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThese tweeters could pair with the Seas MCA15RCY 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.
- Dayton Audio AMT-Mini-8Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair → - Dayton Audio AMT2-4Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair → - Dayton Audio AMT3-4Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair → - Dayton Audio AMTPOD-4Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair → - Dayton Audio AMTPRO-4Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair → - Dayton Audio AN25F-4Insufficient data to grade
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair →
Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.