Conrad CPA12-100FR
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 41.7 Hz |
| Qts | 0.436 |
| Qes | 0.496 |
| Qms | 3.631 |
| Vas | 109.5 L |
| Sd | 507 cm² |
| Xmax | 4 mm |
| Re | 7.1 Ω |
| Bl | 13.4 T·m |
| Mms | 48 g |
| Pe | 100 W |
| Sensitivity | 94.5 dB |
Alignment hint
| EBP | 84 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 67.2 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 |
|---|---|---|---|---|---|---|---|---|
| Celestion PULSE12 | 45 +3.3 | 0.42 -0.02 | 104.77 -4.73 | 3.8 -0.2 | 94.7 +0.2 | close | Xmax 3.8 mm < 4 mm: lower excursion-limited SPL | + |
| Beyma SM212 vp Nº2 | 41.7 = | 0.41 -0.03 | 110.7 +1.2 | 7.3 +3.3 | 95.2 +0.7 | close | + | |
| Davis 31TPA vp nº1 dats v2 | 41.7 = | 0.4 -0.04 | 114.9 +5.4 | 4.8 +0.8 | 95.5 +1 | close | + | |
| Celestion PULSE 12 | 45 +3.3 | 0.416 -0.02 | 104.6 -4.9 | 4 = | 96.2 +1.7 | close | + | |
| MCM Electronics 55-2973 | 42 +0.3 | 0.481 +0.04 | 122.6 +13.1 | 5 +1 | 94.5 = | close | + | |
| Celestion BL12-200X | 45 +3.3 | 0.416 -0.02 | 104.6 -4.9 | 4 = | 96.3 +1.8 | close | + | |
| Monacor SP-12 vp nº1 | 45.8 +4.1 | 0.458 +0.02 | 104.3 -5.2 | 3.9 -0.1 | 95.6 +1.1 | close | Xmax 3.9 mm < 4 mm: lower excursion-limited SPL | + |
| Monacor SP-305I | 40 -1.7 | 0.48 +0.04 | 118 +8.5 | 4 = | 93.6 -0.9 | close | + | |
| Conrad PA 12 | 42.9 +1.2 | 0.462 +0.03 | 129.2 +19.7 | 4 = | 95.2 +0.7 | close | + | |
| Beyma SM112/N v2012 | 43 +1.3 | 0.434 = | 94 -15.5 | 7.3 +3.3 | 95.3 +0.8 | close | + |
Compare the closest 3 against the CPA12-100FR →
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.