DLS OA12D
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 37.8 Hz |
| Qts | 0.49 |
| Qes | 0.57 |
| Qms | 3.47 |
| Vas | 48 L |
| Sd | 452.3 cm² |
| Xmax | 5.2 mm |
| Re | 3.55 Ω |
| Bl | 12.5 T·m |
| Mms | 105.9 g |
| Pe | 210 W |
| Sensitivity | 92.1 dB |
Alignment hint
| EBP | 66 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 44.3 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 |
|---|---|---|---|---|---|---|---|---|
| Dayton Audio TITANIC | 36.3 -1.5 | 0.506 +0.02 | 44 -4 | 7.4 +2.2 | 92 -0.1 | close | + | |
| Fountek FW300DV | 39 +1.2 | 0.49 = | 39.6 -8.4 | 4.6 -0.6 | 92.1 = | close | Xmax 4.6 mm < 5.2 mm: lower excursion-limited SPL | + |
| Fountek FW322 - 8 Ohms | 40.1 +2.3 | 0.461 -0.03 | 53 +5 | 5 -0.2 | 91 -1.1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 5 mm < 5.2 mm: lower excursion-limited SPL | + |
| Focal 33K | 38.4 +0.6 | 0.415 -0.08 | 51.1 +3.1 | 5.9 +0.7 | 93.5 +1.4 | close | + | |
| Focal 30A1 | 37.4 -0.4 | 0.42 -0.07 | 53 +5 | 5.2 = | 93.9 +1.8 | close | + | |
| Focal ACCESS 30 A1 | 37.4 -0.4 | 0.42 -0.07 | 53 +5 | 5.2 = | 93.9 +1.8 | close | + | |
| Scan-Speak 30W/4552-01 | 34 -3.8 | 0.525 +0.04 | 52.9 +4.9 | 6.6 +1.4 | 90.7 -1.4 | close | + | |
| Celestion FTR12-4080DL/4 | 35.3 -2.5 | 0.428 -0.06 | 51.4 +3.4 | 8 +2.8 | 92.5 +0.4 | close | + | |
| Pioneer TS-W307D4 | 34.8 -3 | 0.52 +0.03 | 40.9 -7.1 | 7.4 +2.2 | 91.3 -0.8 | close | + | |
| JBL 1200 GTI | 37 -0.8 | 0.47 -0.02 | 56.7 +8.7 | 8 +2.8 | 94.5 +2.4 | close | + |
Compare the closest 3 against the OA12D →
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.