Beyma 15BBB
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42 Hz |
| Qts | 0.38 |
| Qes | 0.4 |
| Qms | 7.62 |
| Vas | 176 L |
| Sd | 880 cm² |
| Xmax | 3.3 mm |
| Re | 5 Ω |
| Bl | 17.1 T·m |
| Mms | 88.6 g |
| Pe | 150 W |
| Sensitivity | 99.2 dB |
Alignment hint
| EBP | 105 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 71.5 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 15MW/ND v2019 | 42 = | 0.38 = | 176 = | 6.3 +3 | 99.2 = | close | + | |
| P.Audio C15-300MB | 42 = | 0.375 -0.01 | 199.5 +23.5 | 3.5 +0.2 | 99.4 +0.2 | close | + | |
| P.Audio 15BM-500B | 41 -1 | 0.374 -0.01 | 183.4 +7.4 | 4.8 +1.5 | 98.5 -0.7 | close | + | |
| the box 15LB075-UW4 | 40 -2 | 0.382 = | 158.9 -17.1 | 4 +0.7 | 99.5 +0.3 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Celestion TRUVOX 1525 E | 44 +2 | 0.417 +0.04 | 175 -1 | 3.5 +0.2 | 98.8 -0.4 | close | + | |
| Eminence DELTALITE-II 2515 | 42 = | 0.376 = | 204 +28 | 4.8 +1.5 | 99.4 +0.2 | close | + | |
| Celestion FTR15 3070C vp | 41.4 -0.6 | 0.382 = | 187.6 +11.6 | 3 -0.3 | 97.7 -1.5 | close | Xmax 3 mm < 3.3 mm: lower excursion-limited SPL | + |
| Eminence DELTALITE 2515/16 | 42 = | 0.376 = | 204 +28 | 4.8 +1.5 | 99.5 +0.3 | close | + | |
| Monacor SP-15/200PA | 42 = | 0.375 -0.01 | 197 +21 | 4.7 +1.4 | 98.2 -1 | close | + | |
| Focal 15PR75-212 | 42 = | 0.36 -0.02 | 162 -14 | 4.4 +1.1 | 98.3 -0.9 | close | + |
Compare the closest 3 against the 15BBB →
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.