Altec 414 Z
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 16 Ω |
| Fs | 32 Hz |
| Qts | 0.219 |
| Qes | 0.23 |
| Qms | 4.39 |
| Vas | 263 L |
| Sd | 511 cm² |
| Xmax | 4 mm |
| Re | 11.4 Ω |
| Bl | 18.5 T·m |
| Mms | 34.4 g |
| Pe | 150 W |
| Sensitivity | 96.2 dB |
Alignment hint
| EBP | 139 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 27.9 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 |
|---|---|---|---|---|---|---|---|---|
| Great Plains Audio 414-8B (16B) | 25.6 -6.4 | 0.22 = | 263.1 +0.1 | 4 = | 95.3 -0.9 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Altec 414-8C | 30.2 -1.8 | 0.204 -0.02 | 230.2 -32.8 | 4 = | 97.5 +1.3 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Audax PR330M0 | 28 -4 | 0.269 +0.05 | 264 +1 | 4 = | 96.5 +0.3 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Altec 414-8E | 30.3 -1.7 | 0.195 -0.02 | 224 -39 | 4 = | 97.9 +1.7 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Monacor SP-330PAX | 33 +1 | 0.238 +0.02 | 190 -73 | 4.5 +0.5 | 97.4 +1.2 | usable | 8 Ω vs 16 Ω: amp load changes | + |
| Audax LFP502 | 24 -8 | 0.208 -0.01 | 267 +4 | 3.5 -0.5 | 95.4 -0.8 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 3.5 mm < 4 mm: lower excursion-limited SPL | + |
| Audax PR33SM150 | 24 -8 | 0.208 -0.01 | 267 +4 | 3.5 -0.5 | 95.4 -0.8 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 3.5 mm < 4 mm: lower excursion-limited SPL | + |
| EMS LB12 | 34 +2 | 0.214 -0.01 | 200 -63 | 3 -1 | 95.8 -0.4 | usable | 40 W vs 150 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL | + |
| EMS LB12 MKII | 34 +2 | 0.214 -0.01 | 200 -63 | 3 -1 | 95.8 -0.4 | usable | 40 W vs 150 W: lower power handling · Xmax 3 mm < 4 mm: lower excursion-limited SPL | + |
| Audax PR330M0 v2014 | 26 -6 | 0.203 -0.02 | 208 -55 | 4 = | 95.6 -0.6 | usable | 8 Ω vs 16 Ω: amp load changes | + |
Compare the closest 3 against the 414 Z →
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.