Monacor SPA-30PA
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 49 Hz |
| Qts | 0.45 |
| Qes | 0.54 |
| Qms | 2.71 |
| Vas | 67 L |
| Sd | 490 cm² |
| Xmax | 3 mm |
| Re | 6 Ω |
| Bl | 13.5 T·m |
| Mms | 53 g |
| Pe | 175 W |
| Sensitivity | 94.9 dB |
Alignment hint
| EBP | 91 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 45.6 L |
EBP 50-100: works in either a sealed or ported 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 SPA-12PA | 47 -2 | 0.435 -0.02 | 67 = | 3.8 +0.8 | 94.5 -0.4 | close | + | |
| Eminence DELTA-12LFA | 51 +2 | 0.47 +0.02 | 67.9 +0.9 | 4.8 +1.8 | 94.6 -0.3 | close | + | |
| Eminence DELTA 12 LF v2 | 51 +2 | 0.477 +0.03 | 67.9 +0.9 | 4.6 +1.6 | 95.7 +0.8 | close | + | |
| Eminence DELTA 12 LFA | 51 +2 | 0.477 +0.03 | 67.9 +0.9 | 4.8 +1.8 | 95.7 +0.8 | close | + | |
| Fane 12-500LF | 50 +1 | 0.495 +0.04 | 66 -1 | 5.5 +2.5 | 95.2 +0.3 | close | + | |
| Fane SOVEREIGN 12-500LF | 50 +1 | 0.495 +0.04 | 66 -1 | 5.5 +2.5 | 95.2 +0.3 | close | + | |
| Monacor SP-12A/300PA | 50 +1 | 0.416 -0.03 | 73 +6 | 3.8 +0.8 | 96 +1.1 | close | + | |
| DAS Audio 12P | 46.2 -2.8 | 0.459 +0.01 | 73.6 +6.6 | 6 +3 | 94.6 -0.3 | close | + | |
| Eminence DELTA-12LFC | 52 +3 | 0.44 -0.01 | 63.7 -3.3 | 4.8 +1.8 | 93.1 -1.8 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Elder Audio 12LB075-U | 50 +1 | 0.472 +0.02 | 72.8 +5.8 | 5.5 +2.5 | 96 +1.1 | close | + |
Compare the closest 3 against the SPA-30PA →
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.