Focal AUDITOR RSB-250
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 2 Ω |
| Fs | 29 Hz |
| Qts | 0.594 |
| Qes | 0.68 |
| Qms | 4.7 |
| Vas | 42 L |
| Sd | 307 cm² |
| Xmax | 9.5 mm |
| Re | 1.6 Ω |
| Bl | 6.4 T·m |
| Mms | 94.7 g |
| Pe | 250 W |
| Sensitivity | 90.7 dB |
Alignment hint
| EBP | 43 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 100.7 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| JL Audio 10W7AE-3 | 30.6 +1.6 | 0.537 -0.06 | 36.1 -5.9 | 12 +2.5 | 89.1 -1.6 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Morel PRIMO 10 | 35 +6 | 0.558 -0.04 | 38 -4 | 8 -1.5 | 90 -0.7 | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 8 mm < 9.5 mm: lower excursion-limited SPL | + |
| Boston Acoustics G1104 | 29 = | 0.534 -0.06 | 39 -3 | 7.4 -2.1 | 87.1 -3.6 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 7.4 mm < 9.5 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P110S4 | 30 +1 | 0.525 -0.07 | 44.4 +2.4 | 6.4 -3.1 | 89.1 -1.6 | usable | 4 Ω vs 2 Ω: amp load changes · 150 W vs 250 W: lower power handling · Xmax 6.4 mm < 9.5 mm: lower excursion-limited SPL | + |
| Lavoce SSF102.40 | 38 +9 | 0.57 -0.02 | 42 = | 8.3 -1.2 | 87.6 -3.1 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 8.3 mm < 9.5 mm: lower excursion-limited SPL | + |
| LaVoce SSF102.40 8 Ohm | 38 +9 | 0.571 -0.02 | 42 = | 7.7 -1.8 | 88.5 -2.2 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 7.7 mm < 9.5 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P1S4-10 | 30 +1 | 0.52 -0.07 | 40 -2 | 9 -0.5 | 84.2 -6.5 | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P1S2-10 | 30 +1 | 0.52 -0.07 | 39.6 -2.4 | 9 -0.5 | 84 -6.7 | usable | Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| JL Audio 10W0V3-4 | 32.1 +3.1 | 0.604 +0.01 | 31 -11 | 8.7 -0.8 | 86.7 -4 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 8.7 mm < 9.5 mm: lower excursion-limited SPL | + |
| Focal 27 WX | 37.4 +8.4 | 0.555 -0.04 | 38.6 -3.4 | 7.3 -2.2 | 89.8 -0.9 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 7.3 mm < 9.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the AUDITOR RSB-250 →
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.