Ground Zero GZRW 30SPL vp
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 33.3 Hz |
| Qts | 0.357 |
| Qes | 0.38 |
| Qms | 5.97 |
| Vas | 52 L |
| Sd | 486.5 cm² |
| Xmax | 9.1 mm |
| Re | 4 Ω |
| Bl | 17.9 T·m |
| Mms | 145.7 g |
| Pe | 750 W |
| Sensitivity | 92 dB |
Alignment hint
| EBP | 88 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 17.8 L |
EBP 50-100: works in either a sealed or ported 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 12 FG 100 | 34 +0.7 | 0.362 +0.01 | 49 -3 | 9.5 +0.4 | 91 -1 | close | + | |
| B&C 12FG100 | 34 +0.7 | 0.36 = | 49 -3 | 10.3 +1.2 | 91 -1 | close | + | |
| B&C 12FG100 | 34 +0.7 | 0.32 -0.04 | 53 +1 | 10.3 +1.2 | 91 -1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 12 FG 100 4 Ohms | 34 +0.7 | 0.32 -0.04 | 53 +1 | 9.2 +0.1 | 94.3 +2.3 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Pioneer TS-W305C | 32.7 -0.6 | 0.34 -0.02 | 51.5 -0.5 | 7.1 -2 | 93.4 +1.4 | close | 4 Ω vs 8 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 7.1 mm < 9.1 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 12XS-AL | 30 -3.3 | 0.395 +0.04 | 52 = | 8.9 -0.2 | 90.4 -1.6 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 8.9 mm < 9.1 mm: lower excursion-limited SPL | + |
| Pioneer TS-W306C | 32.6 -0.7 | 0.414 +0.06 | 55.6 +3.6 | 8.1 -1 | 92.8 +0.8 | close | 4 Ω vs 8 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 8.1 mm < 9.1 mm: lower excursion-limited SPL | + |
| PHL Audio 4021 | 35.4 +2.1 | 0.367 +0.01 | 55.2 +3.2 | 6.5 -2.6 | 91.6 -0.4 | close | 450 W vs 750 W: lower power handling · Xmax 6.5 mm < 9.1 mm: lower excursion-limited SPL | + |
| Gladen SQL 12 EXTREME | 33 -0.3 | 0.353 = | 36 -16 | 9.4 +0.3 | 93.1 +1.1 | close | 2 Ω vs 8 Ω: amp load changes | + |
| Hifonics ZX1284 | 33 -0.3 | 0.38 +0.02 | 63 +11 | 9 -0.1 | 89.2 -2.8 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 9 mm < 9.1 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the GZRW 30SPL vp →
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.