Eminence ALPHA 3-8
Thiele-Small parameters
| Nominal size | 3" |
|---|---|
| Impedance | 8 Ω |
| Fs | 118 Hz |
| Qts | 0.5 |
| Qes | 0.53 |
| Qms | 7.94 |
| Vas | 0.95 L |
| Sd | 28.6 cm² |
| Xmax | 2.4 mm |
| Re | 5.12 Ω |
| Bl | 3.93 T·m |
| Mms | 2 g |
| Pe | 30 W |
| Sensitivity | 88.6 dB |
Alignment hint
| EBP | 223 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 0.9 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 |
|---|---|---|---|---|---|---|---|---|
| LaVoce WSF030.70 | 112 -6 | 0.61 +0.11 | 0.89 -0.06 | 3.3 +0.9 | 85.5 -3.1 | usable | + | |
| Eminence ALPHA 3-32 | 117 -1 | 0.74 +0.24 | 0.98 +0.03 | 2.6 +0.2 | 88 -0.6 | usable | 32 Ω vs 8 Ω: amp load changes | + |
| Faital PRO 3FE22 | 110 -8 | 0.47 -0.03 | 1.3 +0.35 | 1.83 -0.57 | 91 +2.4 | usable | 20 W vs 30 W: lower power handling · Xmax 1.83 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE25 | 110 -8 | 0.52 +0.02 | 1.3 +0.35 | 1.73 -0.67 | 91 +2.4 | usable | 4 Ω vs 8 Ω: amp load changes · 20 W vs 30 W: lower power handling · Xmax 1.73 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE22 | 110 -8 | 0.56 +0.06 | 1.4 +0.45 | 1.83 -0.57 | 91 +2.4 | usable | 16 Ω vs 8 Ω: amp load changes · 20 W vs 30 W: lower power handling · Xmax 1.83 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE25 | 110 -8 | 0.66 +0.16 | 1.3 +0.35 | 1.83 -0.57 | 91 +2.4 | usable | 20 W vs 30 W: lower power handling · Xmax 1.83 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE26 | 150 +32 | 0.79 +0.29 | 0.9 -0.05 | 2 -0.4 | 90 +1.4 | usable | 20 W vs 30 W: lower power handling · Xmax 2 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE22 | 110 -8 | 0.36 -0.14 | 1.3 +0.35 | 1.73 -0.67 | 91 +2.4 | usable | 4 Ω vs 8 Ω: amp load changes · 20 W vs 30 W: lower power handling · Xmax 1.73 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE25 | 110 -8 | 0.83 +0.33 | 1.3 +0.35 | 1.83 -0.57 | 90 +1.4 | risky | 16 Ω vs 8 Ω: amp load changes · 20 W vs 30 W: lower power handling · Xmax 1.83 mm < 2.4 mm: lower excursion-limited SPL | + |
| Faital PRO 3FE26 | 150 +32 | 1.08 +0.58 | 0.9 -0.05 | 2 -0.4 | 90 +1.4 | risky | 16 Ω vs 8 Ω: amp load changes · 20 W vs 30 W: lower power handling · Xmax 2 mm < 2.4 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the ALPHA 3-8 →
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.