Sphynx SP-W12-BK
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 28 Hz |
| Qts | 0.417 |
| Qes | 0.483 |
| Qms | 3.05 |
| Vas | 258 L |
| Sd | 530 cm² |
| Xmax | 4 mm |
| Re | 6 Ω |
| Bl | 10.4 T·m |
| Mms | 49.3 g |
| Pe | 100 W |
| Sensitivity | 93.9 dB |
Alignment hint
| EBP | 58 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 137.6 L |
EBP 50-100: works in either a sealed or ported alignment.
Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.
Substitute candidates
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| Sphynx SP-W12 | 28 = | 0.415 = | 258 = | 4 = | 93.9 = | close | + | |
| Celestion T1600 vp 2 | 30.3 +2.3 | 0.44 +0.02 | 264.7 +6.7 | 4 = | 94.3 +0.4 | close | + | |
| Ciare HW320 | 27 -1 | 0.445 +0.03 | 293 +35 | 4.1 +0.1 | 93.4 -0.5 | close | + | |
| JBL 125A | 25 -3 | 0.433 +0.02 | 235 -23 | 4.8 +0.8 | 92.9 -1 | close | 50 W vs 100 W: lower power handling | + |
| JBL 127A | 25 -3 | 0.433 +0.02 | 235 -23 | 4.8 +0.8 | 92.9 -1 | close | 50 W vs 100 W: lower power handling | + |
| Audax PR300M0 vp AP | 26.9 -1.1 | 0.448 +0.03 | 231 -27 | 4.4 +0.4 | 92.2 -1.7 | close | + | |
| Philips AD12250W8 vp doum1 | 29.5 +1.5 | 0.404 -0.01 | 216 -42 | 6 +2 | 93.2 -0.7 | close | + | |
| Philips AD12240/W8 | 29 +1 | 0.392 -0.02 | 215.7 -42.3 | 7.4 +3.4 | 93.6 -0.3 | close | + | |
| AE Speakers LO12-D8 | 27.5 -0.5 | 0.431 +0.01 | 273 +15 | 9 +5 | 97.1 +3.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Davis 31TK12-M vp | 27.8 -0.2 | 0.416 = | 376 +118 | 5 +1 | 94.5 +0.6 | close | + |
Compare the closest 3 against the SP-W12-BK →
Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.
Used in enclosures (0)
No enclosure in the catalog uses this driver yet.