Seas 27TFFNC-CG
tweeter · nominal (partial) — Seas datasheet (https://www.seas.no/images/stories/prestige/pdfdatasheet/h1406_27tffnc_cg_datasheet.pdf)
Thiele/Small parameters
| Fs (resonance) | 1170 Hz |
| Qts | — |
| Qes / Qms | — / — |
| Vas | — |
| Re / nominal Z | 2.7 Ω / 4 Ω |
| Xmax | — |
| Sensitivity | 91 dB (2.83 V/1 m, mfr) |
| Power handling | 80 W |
Published (nominal) values, params partial — 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 27TFFNC-CG is a 1.5″ tweeter with a free-air resonance of 1170 Hz. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe woofers and midranges below pair well with the Seas 27TFFNC-CG 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.
- Dayton Audio CE65W-8Good match· 92/100
Suggested crossover 3.26 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio ND65-4Good match· 92/100
Suggested crossover 3.70 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio ND65-8Good match· 92/100
Suggested crossover 3.59 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio PC68-4Good match· 92/100
Suggested crossover 3.17 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio PC68-8Good match· 92/100
Suggested crossover 3.17 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio RS75-4Good match· 92/100
Suggested crossover 4.21 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.