Pioneer TS-W1200PRO
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 40 Hz |
| Qts | 0.376 |
| Qes | 0.39 |
| Qms | 10.7 |
| Vas | 45.6 L |
| Sd | 530.9 cm² |
| Xmax | 5.8 mm |
| Re | 7 Ω |
| Bl | 24.9 T·m |
| Mms | 137.2 g |
| Pe | 450 W |
| Sensitivity | 91.3 dB |
Alignment hint
| EBP | 103 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 18 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 |
|---|---|---|---|---|---|---|---|---|
| PHL Audio 4021 vp kaz1 | 40.4 +0.4 | 0.354 -0.02 | 46.3 +0.7 | 5.5 -0.3 | 92.8 +1.5 | close | Xmax 5.5 mm < 5.8 mm: lower excursion-limited SPL | + |
| Faital PRO 12RS550 | 42 +2 | 0.37 -0.01 | 45.4 -0.2 | 9.25 +3.45 | 93 +1.7 | close | + | |
| PD PDN 12SB40 | 47.2 +7.2 | 0.382 +0.01 | 45.1 -0.5 | 6 +0.2 | 94.2 +2.9 | close | + | |
| Precision Devices PDN 12SB40 | 47.2 +7.2 | 0.382 +0.01 | 45.1 -0.5 | 6 +0.2 | 94.2 +2.9 | close | + | |
| PHL Audio 4021 | 35.4 -4.6 | 0.367 -0.01 | 55.2 +9.6 | 6.5 +0.7 | 91.6 +0.3 | close | + | |
| Eminence DEFINIMAX 4012ULF-8 | 40 = | 0.31 -0.07 | 41.342 -4.26 | 6.7 +0.9 | 91 -0.3 | close | + | |
| Gladen SQX12 | 36.7 -3.3 | 0.405 +0.03 | 40.9 -4.7 | 7 +1.2 | 92.6 +1.3 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 12 BG 100 | 39 -1 | 0.333 -0.04 | 41 -4.6 | 7.8 +2 | 92.4 +1.1 | close | + | |
| B&C 12 FG 100 | 34 -6 | 0.362 -0.01 | 49 +3.4 | 9.5 +3.7 | 91 -0.3 | close | + | |
| Focal 33K | 38.4 -1.6 | 0.415 +0.04 | 51.1 +5.5 | 5.9 +0.1 | 93.5 +2.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the TS-W1200PRO →
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.