B&C 250 AMX
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 8 Ω |
| Fs | 66 Hz |
| Qts | 0.284 |
| Qes | 0.3 |
| Qms | 5.3 |
| Vas | 30 L |
| Sd | 320 cm² |
| Xmax | 2.4 mm |
| Re | 5.3 Ω |
| Bl | 14.3 T·m |
| Mms | 27.8 g |
| Pe | 250 W |
| Sensitivity | 98.4 dB |
Alignment hint
| EBP | 220 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 5.8 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 |
|---|---|---|---|---|---|---|---|---|
| P.Audio SN10-300MBF | 62 -4 | 0.283 = | 30 = | 2.5 +0.1 | 97.2 -1.2 | close | + | |
| Faital PRO 10HX240 | 65 -1 | 0.275 -0.01 | 31.8 +1.8 | 3.5 +1.1 | 98.4 = | close | + | |
| Altec ER-10 | 75 +9 | 0.289 +0.01 | 29.9 -0.1 | 2.5 +0.1 | 98.8 +0.4 | close | + | |
| Ciare PW256 | 69 +3 | 0.255 -0.03 | 30 = | 2.5 +0.1 | 99.5 +1.1 | close | + | |
| B&C 10MBX64 | 65 -1 | 0.3 +0.02 | 30 = | 4 +1.6 | 100 +1.6 | close | 16 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 10NMB420 vp | 67.3 +1.3 | 0.272 -0.01 | 33 +3 | 4 +1.6 | 99.2 +0.8 | close | + | |
| Eminence BETA 10 | 66 = | 0.332 +0.05 | 30.5 +0.5 | 3 +0.6 | 97.7 -0.7 | close | + | |
| B&C 10MBX64-16 | 65 -1 | 0.3 +0.02 | 30 = | 4 +1.6 | 95.9 -2.5 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Eminence DELTA 10 | 66 = | 0.332 +0.05 | 30.5 +0.5 | 3.5 +1.1 | 97.7 -0.7 | close | + | |
| Eminence DELTA 10 A | 66 = | 0.332 +0.05 | 30.5 +0.5 | 3.5 +1.1 | 97.7 -0.7 | close | + |
Compare the closest 3 against the 250 AMX →
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.