Seas C18EN002-A
tweeter · EBP 114 → suits a ported box · nominal (full) — Seas datasheet (https://www.seas.no/images/stories/excel/pdfdataheet/E0060-08_06_C18EN002_A_Datasheet.pdf)
Thiele/Small parameters
| Fs (resonance) | 98 Hz |
| Qts | 0.62 |
| Qes / Qms | 0.86 / 2.16 |
| Vas | 3.7 L |
| Re / nominal Z | 6.2 Ω / 8 Ω |
| Xmax | — |
| Sensitivity | 87.9 dB (1 W/1 m, calc); 87 dB (2.83 V/1 m, mfr) |
| Power handling | 100 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
This is a tweeter; Thiele/Small box parameters are not used for enclosure design.
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About this driver
The Seas C18EN002-A is a 6.5″ tweeter with a free-air resonance of 98 Hz and a total Q (Qts) of 0.62. Its efficiency-bandwidth product (EBP) of 114 points toward a ported alignment. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe woofers and midranges below pair well with the Seas C18EN002-A 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.
- Peerless by Tymphany TC9FD18-08Good match· 96/100
Suggested crossover 2.42 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Peerless by Tymphany SLS-P830668Good match· 93/100
Suggested crossover 784 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W6-1139SIFGood match· 92/100
Suggested crossover 1.25 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio CE65W-8Good match· 92/100
Suggested crossover 3.26 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio DA135-8Good match· 92/100
Suggested crossover 1.68 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio DA175-8Good match· 92/100
Suggested crossover 1.27 kHz (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.