Tannoy DC 3139 D900 SYSTEM
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 16 Ω |
| Fs | 35 Hz |
| Qts | 0.368 |
| Qes | 0.421 |
| Qms | 2.892 |
| Vas | 103.3 L |
| Sd | 510.7 cm² |
| Xmax | 3.7 mm |
| Re | 9.76 Ω |
| Bl | 19.3 T·m |
| Mms | 73.2 g |
| Pe | 75 W |
| Sensitivity | 91.3 dB |
Alignment hint
| EBP | 83 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 38.4 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 12BR70 vp jp | 33.7 -1.3 | 0.365 = | 104 +0.7 | 4.4 +0.7 | 93.1 +1.8 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Beyma 12BR70 v2 | 35 = | 0.355 -0.01 | 100 -3.3 | 4.1 +0.4 | 93.4 +2.1 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Focal 13 WX | 33.6 -1.4 | 0.366 = | 89 -14.3 | 6 +2.3 | 92.1 +0.8 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Beyma 12BR70 vp n4 | 35.1 +0.1 | 0.388 +0.02 | 95.7 -7.6 | 4.5 +0.8 | 93.9 +2.6 | close | 8 Ω vs 16 Ω: amp load changes | + |
| GRS 12PT-8 | 35 = | 0.387 +0.02 | 112 +8.7 | 7.8 +4.1 | 93 +1.7 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Davis 39RCA15 v2024 | 32.8 -2.2 | 0.346 -0.02 | 99.5 -3.8 | 5.8 +2.1 | 93.4 +2.1 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Audax PR300T4 vp série | 36 +1 | 0.349 -0.02 | 114 +10.7 | 4 +0.3 | 94.7 +3.4 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Ciare HSB322 4-4 | 36 +1 | 0.363 -0.01 | 83 -20.3 | 5.4 +1.7 | 93 +1.7 | close | 8 Ω vs 16 Ω: amp load changes | + |
| MCM Electronics 55-2952 | 38 +3 | 0.338 -0.03 | 108 +4.7 | 3.8 +0.1 | 94.3 +3 | close | 8 Ω vs 16 Ω: amp load changes | + |
| McCauley 6232 | 35 = | 0.411 +0.04 | 106.2 +2.9 | 8.4 +4.7 | 93.6 +2.3 | close | 8 Ω vs 16 Ω: amp load changes | + |
Compare the closest 3 against the DC 3139 D900 SYSTEM →
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.