SB Acoustics SB15CRC30-8
midwoofer · EBP 87 → suits either box · nominal (full) — SB Acoustics datasheet (https://sbacoustics.com/wp-content/uploads/2020/03/5in-SB15CRC30-8.pdf)
Thiele/Small parameters
| Fs (resonance) | 40 Hz |
| Qts | 0.41 |
| Qes / Qms | 0.46 / 3.52 |
| Vas | 14.9 L |
| Re / nominal Z | — / — |
| Xmax | — |
| Sensitivity | 86 dB (2.83 V/1 m, mfr) |
| Power handling | 50 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building.
Datasheet (PDF) ↗ — manufacturer-hosted
Recommended enclosures
T/S are full — fetch the datasheet for the full parameters to model a box.
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About this driver
The SB Acoustics SB15CRC30-8 is a 5″ midwoofer with a free-air resonance of 40 Hz and a total Q (Qts) of 0.41. Its efficiency-bandwidth product (EBP) of 87 points toward either alignment. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the SB Acoustics SB15CRC30-8 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 27TBFC/G H1212-06Good match· 92/100
Suggested crossover 1.61 kHz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SB29RDC-C000-4Good match· 92/100
Suggested crossover 1.61 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio RS28F-4Good match· 92/100
Suggested crossover 1.61 kHz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SATORI TW29BGood match· 92/100
Suggested crossover 1.61 kHz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SATORI TW29B-BGood match· 92/100
Suggested crossover 1.61 kHz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SATORI TW29D-BGood match· 92/100
Suggested crossover 1.61 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.