RCF LF 12N401
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 48 Hz |
| Qts | 0.205 |
| Qes | 0.21 |
| Qms | 9.1 |
| Vas | 50 L |
| Sd | 531 cm² |
| Xmax | 5.2 mm |
| Re | 5.5 Ω |
| Bl | 26.2 T·m |
| Mms | 86.9 g |
| Pe | 800 W |
| Sensitivity | 97.8 dB |
Alignment hint
| EBP | 229 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 4.6 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 |
|---|---|---|---|---|---|---|---|---|
| Sica 12 F 4 CP | 46 -2 | 0.2 = | 52 +2 | 6 +0.8 | 97.8 = | close | + | |
| RCF MB 12N407 | 48 = | 0.194 -0.01 | 50 = | 4.7 -0.5 | 98.4 +0.6 | close | Xmax 4.7 mm < 5.2 mm: lower excursion-limited SPL | + |
| RCF MB12N407 | 48 = | 0.194 -0.01 | 50 = | 4.7 -0.5 | 98.4 +0.6 | close | Xmax 4.7 mm < 5.2 mm: lower excursion-limited SPL | + |
| RCF LF 12X401 | 45 -3 | 0.211 +0.01 | 50 = | 6.1 +0.9 | 97 -0.8 | close | + | |
| B&C 12CL76 | 48 = | 0.21 +0.01 | 59 +9 | 6 +0.8 | 98.5 +0.7 | close | 350 W vs 800 W: lower power handling | + |
| RCF MB 12N405 | 52 +4 | 0.203 = | 53 +3 | 5.7 +0.5 | 99.5 +1.7 | close | + | |
| Beyma 12"P80/Fe V2 | 48 = | 0.21 +0.01 | 61 +11 | 7.5 +2.3 | 99 +1.2 | close | + | |
| RCF CX12N351 | 58 +10 | 0.2 = | 47 -3 | 6 +0.8 | 98.2 +0.4 | close | 90 W vs 800 W: lower power handling | + |
| Sica 12 K 4 PL | 48.5 +0.5 | 0.25 +0.05 | 47.4 -2.6 | 7 +1.8 | 97.1 -0.7 | close | + | |
| B&C 12 NW 100 | 42 -6 | 0.198 -0.01 | 44 -6 | 5.6 +0.4 | 95.8 -2 | close | + |
Compare the closest 3 against the LF 12N401 →
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.