RCF LF 12G301
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 43 Hz |
| Qts | 0.219 |
| Qes | 0.23 |
| Qms | 4.6 |
| Vas | 97 L |
| Sd | 530 cm² |
| Xmax | 5.9 mm |
| Re | 5.8 Ω |
| Bl | 19.5 T·m |
| Mms | 55.6 g |
| Pe | 450 W |
| Sensitivity | 98.6 dB |
Alignment hint
| EBP | 187 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 10.3 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| RCF L 12P301 | 43 = | 0.219 = | 97 = | 7.8 +1.9 | 98.6 = | close | + | |
| RCF LF12G301 | 43 = | 0.22 = | 97 = | 7 +1.1 | 97 -1.6 | close | + | |
| RCF LF12G801 | 43 = | 0.22 = | 97 = | 7 +1.1 | 97 -1.6 | close | + | |
| RCF LF12P901 | 43 = | 0.22 = | 97 = | 7 +1.1 | 97 -1.6 | close | + | |
| RCF LF12Y308 | 43 = | 0.22 = | 97 = | 7 +1.1 | 97 -1.6 | close | + | |
| Fane COLOSSUS 12BM | 43 = | 0.211 -0.01 | 89 -8 | 5.3 -0.6 | 98.8 +0.2 | close | Xmax 5.3 mm < 5.9 mm: lower excursion-limited SPL | + |
| 18 Sound 12ND730 | 45 +2 | 0.23 +0.01 | 90 -7 | 6.5 +0.6 | 98 -0.6 | close | + | |
| PHL Audio 4130 | 42 -1 | 0.208 -0.01 | 92 -5 | 5.2 -0.7 | 98.5 -0.1 | close | Xmax 5.2 mm < 5.9 mm: lower excursion-limited SPL | + |
| RCF L 12G301 | 48 +5 | 0.219 = | 97 = | 5.6 -0.3 | 100.1 +1.5 | close | Xmax 5.6 mm < 5.9 mm: lower excursion-limited SPL | + |
| PHL Audio B303-8 4230 | 40 -3 | 0.22 = | 87.2 -9.8 | 5.8 -0.1 | 97.3 -1.3 | close | Xmax 5.8 mm < 5.9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the LF 12G301 →
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.