Tang Band W8-670T
subwoofer · nominal (partial) — Tang Band datasheet (https://www.tb-speaker.com/uploads/files/eb084c1179533e88d34a4fb9a6a9c7d4.pdf)
Thiele/Small parameters
| Fs (resonance) | 40 Hz |
| Qts | 0.45 |
| Qes / Qms | — / 5.87 |
| Vas | 23.3 L |
| Re / nominal Z | 3.6 Ω / 4 Ω |
| Xmax | 7.8 mm |
| Sensitivity | 86 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
T/S are partial — fetch the datasheet for the full parameters to model a box.
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About this driver
The Tang Band W8-670T is a 8″ subwoofer with a free-air resonance of 40 Hz and a total Q (Qts) of 0.45. See the sealed vs ported guide for how to choose.
Recommended partners
modeled estimateThe tweeters below pair well with the Tang Band W8-670T 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 984 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas L12RE-XFCGood match· 92/100
Suggested crossover 984 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas M64F001Good match· 92/100
Suggested crossover 984 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas MR18REX-XFGood match· 92/100
Suggested crossover 984 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas T18REX-XFCGood match· 92/100
Suggested crossover 984 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Tang Band 75-1558SHGood match· 92/100
Suggested crossover 984 Hz (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.