Monacor SP-30A/300NEO
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 52 Hz |
| Qts | 0.239 |
| Qes | 0.25 |
| Qms | 5.36 |
| Vas | 60 L |
| Sd | 530 cm² |
| Xmax | 3.5 mm |
| Re | 5.1 Ω |
| Bl | 20.2 T·m |
| Mms | 61.5 g |
| Pe | 300 W |
| Sensitivity | 99.2 dB |
Alignment hint
| EBP | 208 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 7.7 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/250PA | 52 = | 0.239 = | 62 +2 | 3.4 -0.1 | 99.1 -0.1 | close | Xmax 3.4 mm < 3.5 mm: lower excursion-limited SPL | + |
| B&C 12 CLA 76 | 52 = | 0.247 +0.01 | 56 -4 | 3.9 +0.4 | 98.7 -0.5 | close | + | |
| B&C 12 CXN 88 | 50 -2 | 0.224 -0.01 | 59 -1 | 4 +0.5 | 99.1 -0.1 | close | + | |
| Beyma 12MC700Nd | 51 -1 | 0.24 = | 58 -2 | 7 +3.5 | 99 -0.2 | close | + | |
| Monacor SP-12/300NEO | 53 +1 | 0.252 +0.01 | 68 +8 | 3.5 = | 99.5 +0.3 | close | + | |
| Monacor SP-12A/300NEO | 53 +1 | 0.252 +0.01 | 68 +8 | 3.5 = | 99.5 +0.3 | close | + | |
| B&C 12CLA76 | 52 = | 0.25 +0.01 | 56 -4 | 5.3 +1.8 | 98.5 -0.7 | close | + | |
| RCF MB 12N301 | 54 +2 | 0.24 = | 71 +11 | 4.9 +1.4 | 99.7 +0.5 | close | + | |
| 18 Sound 12ND830 | 58 +6 | 0.24 = | 63 +3 | 6.5 +3 | 99 -0.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| RCF L 12P530 | 56 +4 | 0.269 +0.03 | 59 -1 | 3.7 +0.2 | 99.8 +0.6 | close | + |
Compare the closest 3 against the SP-30A/300NEO →
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.