Eminence Kappa Pro-12A
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 37 Hz |
| Qts | 0.24 |
| Qes | 0.25 |
| Qms | 6.93 |
| Vas | 121 L |
| Sd | 519.5 cm² |
| Xmax | 4.8 mm |
| Re | 5.46 Ω |
| Bl | 17.3 T·m |
| Mms | 59 g |
| Pe | 500 W |
| Sensitivity | 97.1 dB |
Alignment hint
| EBP | 148 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 15.8 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 |
|---|---|---|---|---|---|---|---|---|
| Eminence KAPPA PRO 12 | 37 = | 0.241 = | 121 = | 4.8 = | 97.5 +0.4 | close | + | |
| RCF L 12P400K | 34 -3 | 0.241 = | 130 +9 | 6 +1.2 | 96.3 -0.8 | close | 200 W vs 500 W: lower power handling | + |
| RCF L12/554K | 40.3 +3.3 | 0.23 -0.01 | 130 +9 | 5 +0.2 | 97.5 +0.4 | close | 150 W vs 500 W: lower power handling | + |
| AE Speakers TD12M | 38.1 +1.1 | 0.25 +0.01 | 140 +19 | 6 +1.2 | 97.3 +0.2 | close | + | |
| Dayton Audio APOLLO 12N | 38 +1 | 0.261 +0.02 | 128.1 +7.1 | 6.8 +2 | 96.4 -0.7 | close | + | |
| Beyma 12CXA400FE | 42 +5 | 0.251 +0.01 | 119 -2 | 6 +1.2 | 98.1 +1 | close | + | |
| RCF L 12/544 | 40 +3 | 0.224 -0.02 | 130 +9 | 4.9 +0.1 | 98.7 +1.6 | close | 150 W vs 500 W: lower power handling | + |
| Fane FC-123F01 | 34 -3 | 0.235 -0.01 | 110 -11 | 7.8 +3 | 96.1 -1 | close | + | |
| Precision Devices PD912 | 41.29 +4.29 | 0.25 +0.01 | 97.87 -23.13 | 5 +0.2 | 97 -0.1 | close | 300 W vs 500 W: lower power handling | + |
| Beyma SM112/N | 38 +1 | 0.27 +0.03 | 138 +17 | 7.3 +2.5 | 97.2 +0.1 | close | + |
Compare the closest 3 against the Kappa Pro-12A →
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.