Eminence KAPPA 18
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 28 Hz |
| Qts | 0.32 |
| Qes | 0.33 |
| Qms | 10.38 |
| Vas | 493.2 L |
| Sd | 1188 cm² |
| Xmax | 4.8 mm |
| Re | 5.3 Ω |
| Bl | 19.1 T·m |
| Mms | 129.6 g |
| Pe | 500 W |
| Sensitivity | 98.9 dB |
Alignment hint
| EBP | 85 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 127 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 PRO 18 A | 26 -2 | 0.32 = | 493.2 = | 6.7 +1.9 | 98 -0.9 | close | + | |
| Eminence JAY7010 | 28.1 +0.1 | 0.314 -0.01 | 546.6 +53.4 | 9.1 +4.3 | 99.2 +0.3 | close | + | |
| Eminence DELTA PRO 18 (Prodance) | 26.6 -1.4 | 0.301 -0.02 | 533.6 +40.4 | 6.7 +1.9 | 98.8 -0.1 | close | + | |
| Eminence SIGMA PRO-18A | 28 = | 0.29 -0.03 | 441.2 -52 | 6.1 +1.3 | 99 +0.1 | close | + | |
| Eminence SIGMA PRO 18 (prodance) | 26 -2 | 0.301 -0.02 | 523 +29.8 | 6.1 +1.3 | 98.4 -0.5 | close | + | |
| Eminence DELTA PRO 18 | 26 -2 | 0.301 -0.02 | 523 +29.8 | 6.7 +1.9 | 98.4 -0.5 | close | + | |
| Eminence SIGMA PRO 18 | 28 = | 0.29 -0.03 | 441.2 -52 | 6.1 +1.3 | 98.1 -0.8 | close | + | |
| Eminence OMEGA PRO 18 A | 25 -3 | 0.308 -0.01 | 548.7 +55.5 | 4.8 = | 98.1 -0.8 | close | + | |
| B&C 18 PS 46 | 28 = | 0.316 = | 386 -107.2 | 6 +1.2 | 97.9 -1 | close | + | |
| Dayton Audio PA460-8 v2015 | 28.3 +0.3 | 0.33 +0.01 | 402 -91.2 | 6 +1.2 | 97.8 -1.1 | close | + |
Compare the closest 3 against the KAPPA 18 →
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.