Dayton Audio UM12-22 v2017
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 26.2 Hz |
| Qts | 0.594 |
| Qes | 0.71 |
| Qms | 3.62 |
| Vas | 46.8 L |
| Sd | 490.9 cm² |
| Xmax | 9.9 mm |
| Re | 3.2 Ω |
| Bl | 14.1 T·m |
| Mms | 266.4 g |
| Pe | 600 W |
| Sensitivity | 86.7 dB |
Alignment hint
| EBP | 37 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 112.2 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 |
|---|---|---|---|---|---|---|---|---|
| Rockford Fosgate T1D412 | 29.2 +3 | 0.613 +0.02 | 55.8 +9 | 10.9 +1 | 85.8 -0.9 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Rockford Fosgate T0D412 | 26 -0.2 | 0.529 -0.06 | 55.1 +8.3 | 10.7 +0.8 | 85.3 -1.4 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Rockford Fosgate P2D4-12 | 27 +0.8 | 0.581 -0.01 | 70.3 +23.5 | 10.1 +0.2 | 86.8 +0.1 | close | 8 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling | + |
| Dayton Audio UMII12-22 | 31 +4.8 | 0.564 -0.03 | 53 +6.2 | 10 +0.1 | 88.2 +1.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Alpine SWX-1243D Type-X | 29 +2.8 | 0.59 = | 38 -8.8 | 10.8 +0.9 | 84.2 -2.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Rockford Fosgate P3D4-12 | 27.7 +1.5 | 0.517 -0.08 | 57.7 +10.9 | 9.4 -0.5 | 86.3 -0.4 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 9.4 mm < 9.9 mm: lower excursion-limited SPL | + |
| Alpine SWR-12D2 vp | 27 +0.8 | 0.441 -0.15 | 46 -0.8 | 10 +0.1 | 87.8 +1.1 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| JL Audio 12TW3-D4 | 26.5 +0.3 | 0.531 -0.06 | 48.7 +1.9 | 7.9 -2 | 83.4 -3.3 | usable | 16 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 7.9 mm < 9.9 mm: lower excursion-limited SPL | + |
| American Bass DX 12 | 35.6 +9.4 | 0.6 +0.01 | 41.5 -5.3 | 12 +2.1 | 86.2 -0.5 | usable | 400 W vs 600 W: lower power handling | + |
| Dayton Audio UM12-22 | 24.9 -1.3 | 0.589 -0.01 | 71.6 +24.8 | 12.5 +2.6 | 87.7 +1 | usable | + |
Compare the closest 3 against the UM12-22 v2017 →
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.