Dayton Audio UMII12-22
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 31 Hz |
| Qts | 0.564 |
| Qes | 0.71 |
| Qms | 2.75 |
| Vas | 53 L |
| Sd | 528 cm² |
| Xmax | 10 mm |
| Re | 4.2 Ω |
| Bl | 15 T·m |
| Mms | 194.4 g |
| Pe | 800 W |
| Sensitivity | 88.2 dB |
Alignment hint
| EBP | 44 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 92.7 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 T1D212 | 28 -3 | 0.522 -0.04 | 55.8 +2.8 | 10.9 +0.9 | 89.1 +0.9 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Rockford Fosgate T1D412 | 29.2 -1.8 | 0.613 +0.05 | 55.8 +2.8 | 10.9 +0.9 | 85.8 -2.4 | close | + | |
| Sound Storm Labs CR12D | 30.7 -0.3 | 0.522 -0.04 | 66.9 +13.9 | 10.3 +0.3 | 87.5 -0.7 | close | 600 W vs 800 W: lower power handling | + |
| JBL GT5-12 vp | 29 -2 | 0.582 +0.02 | 54.2 +1.2 | 6.7 -3.3 | 88.1 -0.1 | close | 275 W vs 800 W: lower power handling · Xmax 6.7 mm < 10 mm: lower excursion-limited SPL | + |
| Alpine SWE-1241 | 31 = | 0.653 +0.09 | 61 +8 | 11.3 +1.3 | 89.6 +1.4 | close | 4 Ω vs 8 Ω: amp load changes · 600 W vs 800 W: lower power handling | + |
| JBL W12GTI | 31.8 +0.8 | 0.508 -0.06 | 44.8 -8.2 | 9.9 -0.1 | 90.1 +1.9 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
| JBL W12GTi MKII | 31.8 +0.8 | 0.508 -0.06 | 44.8 -8.2 | 9.9 -0.1 | 90.1 +1.9 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
| JBL W12GTIe | 31.8 +0.8 | 0.508 -0.06 | 44.8 -8.2 | 9.9 -0.1 | 90.1 +1.9 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
| Powerbass S-1204D | 31 = | 0.5 -0.06 | 65 +12 | 9.5 -0.5 | 87.2 -1 | close | 4 Ω vs 8 Ω: amp load changes · 300 W vs 800 W: lower power handling · Xmax 9.5 mm < 10 mm: lower excursion-limited SPL | + |
| Dayton Audio UM12-22 v2017 | 26.2 -4.8 | 0.594 +0.03 | 46.8 -6.2 | 9.9 -0.1 | 86.7 -1.5 | close | 4 Ω vs 8 Ω: amp load changes · 600 W vs 800 W: lower power handling · Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the UMII12-22 →
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.