BMS 12CN860
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 52 Hz |
| Qts | 0.219 |
| Qes | 0.23 |
| Qms | 4.5 |
| Vas | 37 L |
| Sd | 449 cm² |
| Xmax | 4.5 mm |
| Re | 5.7 Ω |
| Bl | 24.1 T·m |
| Mms | 71.6 g |
| Pe | 800 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 226 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 3.9 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 |
|---|---|---|---|---|---|---|---|---|
| Faital PRO 12HP1020 | 55 +3 | 0.27 +0.05 | 38.6 +1.6 | 9 +4.5 | 97 = | usable | + | |
| Faital PRO 12FX600 | 48 -4 | 0.24 +0.02 | 44.4 +7.4 | 9.9 +5.4 | 97 = | usable | + | |
| RCF LF 12N401 | 48 -4 | 0.205 -0.01 | 50 +13 | 5.2 +0.7 | 97.8 +0.8 | usable | + | |
| RCF LF 12X401 | 45 -7 | 0.211 -0.01 | 50 +13 | 6.1 +1.6 | 97 = | usable | + | |
| Sica 12 K 4 PL | 48.5 -3.5 | 0.25 +0.03 | 47.4 +10.4 | 7 +2.5 | 97.1 +0.1 | usable | + | |
| RCF MB 12X351 | 55 +3 | 0.258 +0.04 | 46 +9 | 5 +0.5 | 98.2 +1.2 | usable | + | |
| RCF CX12N351 | 58 +6 | 0.2 -0.02 | 47 +10 | 6 +1.5 | 98.2 +1.2 | usable | 90 W vs 800 W: lower power handling | + |
| Audax PR330T4 | 50 -2 | 0.244 +0.02 | 43.9 +6.9 | 3.4 -1.1 | 96.1 -0.9 | usable | 350 W vs 800 W: lower power handling · Xmax 3.4 mm < 4.5 mm: lower excursion-limited SPL | + |
| RCF MB 12N405 | 52 = | 0.203 -0.02 | 53 +16 | 5.7 +1.2 | 99.5 +2.5 | usable | + | |
| SICA 12 K 4 PL 2000W | 48 -4 | 0.24 +0.02 | 46.3 +9.3 | 7 +2.5 | 94.9 -2.1 | usable | + |
Compare the closest 3 against the 12CN860 →
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.