Infinity Kappa 123WDSSI 2Ohm
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 2 Ω |
| Fs | 34.2 Hz |
| Qts | 0.778 |
| Qes | 0.891 |
| Qms | 6.134 |
| Vas | 58.6153 L |
| Sd | 330 cm² |
| Xmax | 10.2 mm |
| Re | 2.33 Ω |
| Bl | 9.44 T·m |
| Mms | 143.8 g |
| Pe | 500 W |
| Sensitivity | 86.0429 dB |
Alignment hint
| EBP | 38 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | Qts too high |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| Alpine SWE-1242 | 31 -3.2 | 0.66 -0.12 | 61 +2.38 | 11.7 +1.5 | 85.9 -0.14 | close | 4 Ω vs 2 Ω: amp load changes · 250 W vs 500 W: lower power handling | + |
| Soundstream STEALTH-124 | 29.98 -4.22 | 0.687 -0.09 | 59.5 +0.88 | 13 +2.8 | 84.8 -1.24 | close | 8 Ω vs 2 Ω: amp load changes · 350 W vs 500 W: lower power handling | + |
| JL Audio 12W0V3-4 | 32.09 -2.11 | 0.67 -0.11 | 71.64 +13.02 | 11.4 +1.2 | 85.64 -0.4 | usable | 4 Ω vs 2 Ω: amp load changes · 300 W vs 500 W: lower power handling | + |
| Ground Zero GZIW 300X | 34.9 +0.7 | 0.69 -0.09 | 53.6 -5.02 | 7.5 -2.7 | 86.6 +0.56 | usable | 4 Ω vs 2 Ω: amp load changes · 350 W vs 500 W: lower power handling · Xmax 7.5 mm < 10.2 mm: lower excursion-limited SPL | + |
| Hertz Audio ES 300.5 | 35 +0.8 | 0.66 -0.12 | 48.5 -10.12 | 9 -1.2 | 86.6 +0.56 | usable | 4 Ω vs 2 Ω: amp load changes · 350 W vs 500 W: lower power handling · Xmax 9 mm < 10.2 mm: lower excursion-limited SPL | + |
| Rockford Fosgate T1D412 | 29.2 -5 | 0.613 -0.17 | 55.8 -2.82 | 10.9 +0.7 | 85.8 -0.24 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| Sphynx SP-W12-GLB | 32 -2.2 | 0.782 = | 65.9 +7.28 | 5.8 -4.4 | 86 -0.04 | usable | 8 Ω vs 2 Ω: amp load changes · 200 W vs 500 W: lower power handling · Xmax 5.8 mm < 10.2 mm: lower excursion-limited SPL | + |
| Alpine SWE-1241 | 31 -3.2 | 0.653 -0.12 | 61 +2.38 | 11.3 +1.1 | 89.6 +3.56 | usable | 4 Ω vs 2 Ω: amp load changes | + |
| Pioneer TS-W251R | 28.9 -5.3 | 0.68 -0.1 | 57.86 -0.76 | 7.8 -2.4 | 84.6 -1.44 | usable | 4 Ω vs 2 Ω: amp load changes · 120 W vs 500 W: lower power handling · Xmax 7.8 mm < 10.2 mm: lower excursion-limited SPL | + |
| Selenium 12SW13ADVC 4+4 | 37 +2.8 | 0.854 +0.08 | 47 -11.62 | 7 -3.2 | 86.2 +0.16 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 7 mm < 10.2 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the Kappa 123WDSSI 2Ohm →
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.