Powersoft 30''-4MM M-FORCE 02 STRAIGHT
Thiele-Small parameters
| Nominal size | 31.5" |
|---|---|
| Impedance | 0.25 Ω |
| Fs | 32 Hz |
| Qts | 0.153 |
| Qes | 0.156 |
| Qms | 8.367 |
| Vas | 170 L |
| Sd | 3420 cm² |
| Xmax | 3.8 mm |
| Re | 0.19 Ω |
| Bl | 24.2 T·m |
| Mms | 2382.8 g |
| Pe | 5000 W |
| Sensitivity | 113.8 dB |
Alignment hint
| EBP | 205 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 8.3 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 |
|---|---|---|---|---|---|---|---|---|
| Powersoft 30''-4MM M-FORCE 02 REVERSED | 32 = | 0.153 = | 170 = | 3.8 = | 113.8 = | close | + | |
| Powersoft 30''-4MM M-FORCE 02 SHORT | 32 = | 0.153 = | 170 = | 3.8 = | 113.8 = | close | + | |
| Powersoft 30''-3MM M-FORCE 01 STRAIGHT | 30 -2 | 0.167 +0.01 | 230 +60 | 4.8 +1 | 112.5 -1.3 | usable | 0.5 Ω vs 0.25 Ω: amp load changes | + |
| Powersoft 30''-4MM M-FORCE 01 REVERSED | 32 = | 0.207 +0.05 | 170 = | 4.6 +0.8 | 111.1 -2.7 | usable | 0.5 Ω vs 0.25 Ω: amp load changes | + |
| Powersoft 30''-4MM M-FORCE 01 SHORT | 32 = | 0.207 +0.05 | 170 = | 4.6 +0.8 | 111.1 -2.7 | usable | 0.5 Ω vs 0.25 Ω: amp load changes | + |
| Powersoft 30''-4MM M-FORCE 01 STRAIGHT | 32 = | 0.207 +0.05 | 170 = | 4.6 +0.8 | 111.1 -2.7 | usable | 0.5 Ω vs 0.25 Ω: amp load changes | + |
| Powersoft 30''-3MM M-FORCE 02 STRAIGHT | 30 -2 | 0.124 -0.03 | 230 +60 | 4 +0.2 | 115.2 +1.4 | usable | + | |
| Fluxmag 2950-Sono | 27.8 -4.2 | 0.761 +0.61 | 869 +699 | 5.5 +1.7 | 96.9 -16.9 | risky | 8 Ω vs 0.25 Ω: amp load changes · 350 W vs 5000 W: lower power handling | + |
| Fluxmag 2950-Hifi | 24.4 -7.6 | 0.589 +0.44 | 1313 +1143 | 5.5 +1.7 | 98.2 -15.6 | risky | 8 Ω vs 0.25 Ω: amp load changes · 200 W vs 5000 W: lower power handling | + |
| Electro-Voice 30W vp | 16 -16 | 0.269 +0.12 | 5947.2 +5777.2 | 3.8 = | 104.1 -9.7 | risky | 8 Ω vs 0.25 Ω: amp load changes · 60 W vs 5000 W: lower power handling | + |
Compare the closest 3 against the 30''-4MM M-FORCE 02 STRAIGHT →
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)
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