Monacor SPA-12PA
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 47 Hz |
| Qts | 0.435 |
| Qes | 0.5 |
| Qms | 3.33 |
| Vas | 67 L |
| Sd | 530 cm² |
| Xmax | 3.8 mm |
| Re | 6.3 Ω |
| Bl | 15.8 T·m |
| Mms | 67.4 g |
| Pe | 150 W |
| Sensitivity | 94.5 dB |
Alignment hint
| EBP | 94 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 40.8 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 |
|---|---|---|---|---|---|---|---|---|
| Eminence DELTA-12LFA | 51 +4 | 0.47 +0.03 | 67.9 +0.9 | 4.8 +1 | 94.6 +0.1 | close | + | |
| DAS Audio 12P | 46.2 -0.8 | 0.459 +0.02 | 73.6 +6.6 | 6 +2.2 | 94.6 +0.1 | close | + | |
| Monacor SPA-30PA | 49 +2 | 0.45 +0.02 | 67 = | 3 -0.8 | 94.9 +0.4 | close | Xmax 3 mm < 3.8 mm: lower excursion-limited SPL | + |
| Faital PRO 12FE300 | 47 = | 0.44 +0.01 | 81.4 +14.4 | 5.47 +1.67 | 95 +0.5 | close | 4 Ω vs 8 Ω: amp load changes | + |
| SICA 12 S 3 CP | 44 -3 | 0.405 -0.03 | 67.5 +0.5 | 6 +2.2 | 95 +0.5 | close | + | |
| Monacor SP-12A/300PA | 50 +3 | 0.416 -0.02 | 73 +6 | 3.8 = | 96 +1.5 | close | + | |
| Eminence DELTA-12LFC | 52 +5 | 0.44 +0.01 | 63.7 -3.3 | 4.8 +1 | 93.1 -1.4 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Eminence DELTA 12 LF v2 | 51 +4 | 0.477 +0.04 | 67.9 +0.9 | 4.6 +0.8 | 95.7 +1.2 | close | + | |
| Eminence DELTA 12 LFA | 51 +4 | 0.477 +0.04 | 67.9 +0.9 | 4.8 +1 | 95.7 +1.2 | close | + | |
| P.Audio SN-12LF | 48 +1 | 0.399 -0.04 | 67.9 +0.9 | 7.2 +3.4 | 96 +1.5 | close | + |
Compare the closest 3 against the SPA-12PA →
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.