Sine Design

Seas 19TFF1

tweeter · nominal (partial) — Seas datasheet (https://www.seas.no/images/stories/prestige/pdfdatasheet/h0737_19tff1_datasheet.pdf)

Thiele/Small parameters

Fs (resonance)1700 Hz
Qts
Qes / Qms— / —
Vas
Re / nominal Z6.2 Ω / 8 Ω
Xmax
Sensitivity88 dB (2.83 V/1 m, mfr)
Power handling90 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 19TFF1 is a 1″ tweeter with a free-air resonance of 1700 Hz. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The woofers and midranges below pair well with the Seas 19TFF1 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.

Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.

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