Monacor SP-30A/250PA
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 52 Hz |
| Qts | 0.239 |
| Qes | 0.25 |
| Qms | 5.55 |
| Vas | 62 L |
| Sd | 530 cm² |
| Xmax | 3.4 mm |
| Re | 5.4 Ω |
| Bl | 20.5 T·m |
| Mms | 59.5 g |
| Pe | 250 W |
| Sensitivity | 99.1 dB |
Alignment hint
| EBP | 208 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 8 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 |
|---|---|---|---|---|---|---|---|---|
| Monacor SP-30A/300NEO | 52 = | 0.239 = | 60 -2 | 3.5 +0.1 | 99.2 +0.1 | close | + | |
| B&C 12 CLA 76 | 52 = | 0.247 +0.01 | 56 -6 | 3.9 +0.5 | 98.7 -0.4 | close | + | |
| Monacor SP-12/300NEO | 53 +1 | 0.252 +0.01 | 68 +6 | 3.5 +0.1 | 99.5 +0.4 | close | + | |
| Monacor SP-12A/300NEO | 53 +1 | 0.252 +0.01 | 68 +6 | 3.5 +0.1 | 99.5 +0.4 | close | + | |
| B&C 12 CXN 88 | 50 -2 | 0.224 -0.01 | 59 -3 | 4 +0.6 | 99.1 = | close | + | |
| Beyma 12MC700Nd | 51 -1 | 0.24 = | 58 -4 | 7 +3.6 | 99 -0.1 | close | + | |
| 18 Sound 12ND830 | 58 +6 | 0.24 = | 63 +1 | 6.5 +3.1 | 99 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 12CLA76 | 52 = | 0.25 +0.01 | 56 -6 | 5.3 +1.9 | 98.5 -0.6 | close | + | |
| RCF MB 12N301 | 54 +2 | 0.24 = | 71 +9 | 4.9 +1.5 | 99.7 +0.6 | close | + | |
| 18 Sound 12CX800 | 53 +1 | 0.253 +0.01 | 73 +11 | 4.7 +1.3 | 99.4 +0.3 | close | + |
Compare the closest 3 against the SP-30A/250PA →
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.