Dayton Audio EC30-4
tweeter · EBP 602 → suits a ported box · nominal (partial) — Dayton Audio datasheet (https://www.daytonaudio.com/images/resources/275-500--epique-ec30-4-specification-sheet.pdf)
Thiele/Small parameters
| Fs (resonance) | 700 Hz |
| Qts | 0.8651 |
| Qes / Qms | 1.163 / 3.376 |
| Vas | — |
| Re / nominal Z | 4.03 Ω / 4 Ω |
| Xmax | — |
| Sensitivity | 92 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.
Affiliate disclosure: some links are affiliate links and we may earn a commission on qualifying purchases at no extra cost to you. Prices are estimates at the time of writing; verify on the retailer's site.
About this driver
The Dayton Audio EC30-4 is a tweeter with a free-air resonance of 700 Hz and a total Q (Qts) of 0.8651. Its efficiency-bandwidth product (EBP) of 602 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 Dayton Audio EC30-4 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 → - Dayton Audio RS125-4Good match· 93/100
Suggested crossover 2.01 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band W5-1611SAFGood match· 92/100
Suggested crossover 1.51 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 DS115-8Good match· 92/100
Suggested crossover 1.98 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio DS90-8Good match· 92/100
Suggested crossover 2.61 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.