Wavecor SW178WA01
subwoofer · EBP 103 → suits a ported box · nominal (full) — Wavecor datasheet (https://www.wavecor.com/Driver%20specifications%20PDF/SW178WA01_specifications.pdf)
Thiele/Small parameters
| Fs (resonance) | 38 Hz |
| Qts | 0.365 |
| Qes / Qms | 0.37 / 19.3 |
| Vas | 12.2 L |
| Re / nominal Z | 6.4 Ω / 8 Ω |
| Xmax | — |
| Sensitivity | 84.4 dB (1 W/1 m, calc); 85 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
| Sealed (Qtc 0.707) — Vb | 4.4 L |
| Sealed — Fc / F3 | 73.6 / 73.6 Hz |
| Ported (suggested) — Vb | 8.8 L |
| Ported — Fb / F3 | 42.1 / 42.9 Hz |
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About this driver
The Wavecor SW178WA01 is a 6.5″ subwoofer with a free-air resonance of 38 Hz and a total Q (Qts) of 0.365. Its efficiency-bandwidth product (EBP) of 103 points toward a ported alignment. In a 4.4 L sealed box it reaches an F3 of 73.6 Hz (Qtc 0.707); a suggested 8.8 L box tuned to 42.1 Hz extends to about 42.9 Hz. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the Wavecor SW178WA01 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.
- Seas C18EN002-AGood match· 92/100
Suggested crossover 1.28 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Seas L12RE-XFCGood match· 92/100
Suggested crossover 1.28 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Seas M64F001Good match· 92/100
Suggested crossover 1.28 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Seas MR18REX-XFGood match· 92/100
Suggested crossover 1.28 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Seas T18REX-XFCGood match· 92/100
Suggested crossover 1.28 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Seas T25CF002Good match· 92/100
Suggested crossover 1.28 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.