JBL CS1214
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 28 Hz |
| Qts | 0.536 |
| Qes | 0.57 |
| Qms | 8.85 |
| Vas | 76.7 L |
| Sd | 551 cm² |
| Xmax | 6.1 mm |
| Re | 3.6 Ω |
| Bl | 14.1 T·m |
| Mms | 179.3 g |
| Pe | 250 W |
| Sensitivity | 90.2 dB |
Alignment hint
| EBP | 49 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 103.6 L |
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 |
|---|---|---|---|---|---|---|---|---|
| MTX Audio RT12-04 | 28 = | 0.535 = | 68 -8.7 | 7.5 +1.4 | 90.1 -0.1 | close | + | |
| Focal 33V2 | 28.7 +0.7 | 0.537 = | 76.2 -0.5 | 7.5 +1.4 | 92.5 +2.3 | close | + | |
| Phoenix Gold RYVAL V12D | 30 +2 | 0.552 +0.02 | 81.9 +5.2 | 6.4 +0.3 | 91.4 +1.2 | close | 150 W vs 250 W: lower power handling | + |
| Rockford Fosgate S2-124 | 27 -1 | 0.498 -0.04 | 77 +0.3 | 10.7 +4.6 | 89.9 -0.3 | close | + | |
| Wavecor SW310WA02 | 27.5 -0.5 | 0.52 -0.02 | 64.5 -12.2 | 7.4 +1.3 | 89.9 -0.3 | close | + | |
| Alpine SWS-1241 | 30 +2 | 0.563 +0.03 | 65 -11.7 | 6.7 +0.6 | 90.1 -0.1 | close | + | |
| Pyle Audio PLPW12D | 32.9 +4.9 | 0.534 = | 84.1 +7.4 | 6 -0.1 | 89.4 -0.8 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 6 mm < 6.1 mm: lower excursion-limited SPL | + |
| Tymphany LAT 500-04 | 28 = | 0.474 -0.06 | 81 +4.3 | 7.7 +1.6 | 91.6 +1.4 | close | + | |
| JBL CS-1214 | 28 = | 0.492 -0.04 | 76.7 = | 6.3 +0.2 | 86.2 -4 | close | 16 Ω vs 4 Ω: amp load changes | + |
| MTX Audio T5512-04 | 29.3 +1.3 | 0.583 +0.05 | 66.9 -9.8 | 7.3 +1.2 | 89.8 -0.4 | close | + |
Compare the closest 3 against the CS1214 →
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.