Siare 31SPCT vp jmp repar
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 23.4 Hz |
| Qts | 0.371 |
| Qes | 0.43 |
| Qms | 2.71 |
| Vas | 204 L |
| Sd | 461 cm² |
| Xmax | 4 mm |
| Re | 6.9 Ω |
| Bl | 12.6 T·m |
| Mms | 67.6 g |
| Pe | 120 W |
| Sensitivity | 90.5 dB |
Alignment hint
| EBP | 54 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 77.5 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 |
|---|---|---|---|---|---|---|---|---|
| Dayton Audio DC300-8 v2018 | 22.9 -0.5 | 0.332 -0.04 | 181.5 -22.5 | 4.3 +0.3 | 90.4 -0.1 | close | 80 W vs 120 W: lower power handling | + |
| Gradient GCP 312/8 | 26 +2.6 | 0.395 +0.02 | 194 -10 | 4.8 +0.8 | 90.9 +0.4 | close | + | |
| HiVi F12 | 25 +1.6 | 0.37 = | 173.9 -30.1 | 6 +2 | 90.7 +0.2 | close | + | |
| TVM ARN 312-00/8 | 22 -1.4 | 0.335 -0.04 | 203 -1 | 6.3 +2.3 | 90.8 +0.3 | close | + | |
| Aurum Cantus AC300/75C2C | 22 -1.4 | 0.352 -0.02 | 232 +28 | 8 +4 | 90.3 -0.2 | close | + | |
| Peerless 315SWR | 24 +0.6 | 0.433 +0.06 | 210 +6 | 8 +4 | 91.3 +0.8 | close | + | |
| Peerless 831857 | 24 +0.6 | 0.433 +0.06 | 210 +6 | 9 +5 | 91.3 +0.8 | close | + | |
| MCM Electronics 55-1465 DVC 8 Ohms en série 16 Oh | 25 +1.6 | 0.29 -0.08 | 203.8 -0.2 | 5 +1 | 90.3 -0.2 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Peerless SLS315 | 24.4 +1 | 0.452 +0.08 | 205.2 +1.2 | 7.8 +3.8 | 91.4 +0.9 | usable | + | |
| Audax 180040A | 22.4 -1 | 0.392 +0.02 | 239.6 +35.6 | 8 +4 | 88.7 -1.8 | usable | 16 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 31SPCT vp jmp repar →
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.