EMS LB12 MKII
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 16 Ω |
| Fs | 34 Hz |
| Qts | 0.214 |
| Qes | 0.221 |
| Qms | 6.325 |
| Vas | 200 L |
| Sd | 498.1 cm² |
| Xmax | 3 mm |
| Re | 11.7 Ω |
| Bl | 20.8 T·m |
| Mms | 38.1 g |
| Pe | 40 W |
| Sensitivity | 95.8 dB |
Alignment hint
| EBP | 154 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 20.2 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 |
|---|---|---|---|---|---|---|---|---|
| EMS LB12 | 34 = | 0.214 = | 200 = | 3 = | 95.8 = | close | + | |
| EMS LB12EX_14V | 34 = | 0.207 -0.01 | 200 = | 3 = | 96 +0.2 | close | + | |
| EMS LB12EX | 34 = | 0.207 -0.01 | 200 = | 3 = | 96 +0.2 | close | + | |
| EMS LB12EX_12V | 34 = | 0.232 +0.02 | 200 = | 3 = | 95.5 -0.3 | close | + | |
| Beyma 12XA30/ND | 35 +1 | 0.21 = | 172 -28 | 4 +1 | 97.2 +1.4 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Goodmans AXIOM 150 MK2 | 37.5 +3.5 | 0.231 +0.02 | 177.6 -22.4 | 3 = | 95.8 = | close | + | |
| Fostex L 345 | 34 = | 0.242 +0.03 | 197 -3 | 5.7 +2.7 | 97.3 +1.5 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Monacor SP-330PAX | 33 -1 | 0.238 +0.02 | 190 -10 | 4.5 +1.5 | 97.4 +1.6 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Altec 414 Z | 32 -2 | 0.219 +0.01 | 263 +63 | 4 +1 | 96.2 +0.4 | close | + | |
| Fostex LS 362 | 35 +1 | 0.211 = | 152.9 -47.1 | 4 +1 | 97.4 +1.6 | close | 8 Ω vs 16 Ω: amp load changes | + |
Compare the closest 3 against the LB12 MKII →
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.