GR Research SW-12-04
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 21 Hz |
| Qts | 0.279 |
| Qes | 0.298 |
| Qms | 4.308 |
| Vas | 137 L |
| Sd | 490 cm² |
| Xmax | 8.3 mm |
| Re | 3 Ω |
| Bl | 13.7 T·m |
| Mms | 141.1 g |
| Pe | 200 W |
| Sensitivity | 92.5 dB |
Alignment hint
| EBP | 70 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 25.3 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 |
|---|---|---|---|---|---|---|---|---|
| Pioneer TS-W304C | 22.3 +1.3 | 0.274 -0.01 | 134 -3 | 9.8 +1.5 | 93.5 +1 | close | + | |
| Pioneer TS-W 304 C | 21 = | 0.307 +0.03 | 136 -1 | 11 +2.7 | 92.2 -0.3 | close | + | |
| Pioneer TS-W1201C | 20 -1 | 0.291 +0.01 | 118 -19 | 9.2 +0.9 | 91.2 -1.3 | close | + | |
| Helix P12 | 21.4 +0.4 | 0.302 +0.02 | 118.6 -18.4 | 9.9 +1.6 | 91.4 -1.1 | close | + | |
| Visaton TIW300 | 25 +4 | 0.282 = | 160 +23 | 9.7 +1.4 | 92.9 +0.4 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Pioneer TSW 304 C | 21 = | 0.342 +0.06 | 146 +9 | 11 +2.7 | 92 -0.5 | close | + | |
| Eminence LAB 12 C | 22.9 +1.9 | 0.33 +0.05 | 128.3 -8.7 | 11 +2.7 | 92.6 +0.1 | close | + | |
| Infinity TWEELVE vp | 22 +1 | 0.242 -0.04 | 158 +21 | 10 +1.7 | 93.3 +0.8 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Peerless XXLS12-8+8 | 21.8 +0.8 | 0.357 +0.08 | 144.2 +7.2 | 9.7 +1.4 | 93.1 +0.6 | usable | + | |
| STX W.32.500.8.MC | 25 +4 | 0.299 +0.02 | 155 +18 | 7.5 -0.8 | 92.1 -0.4 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.5 mm < 8.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the SW-12-04 →
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.