P.Audio 15BM-300B
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 50.6 Hz |
| Qts | 0.404 |
| Qes | 0.44 |
| Qms | 4.92 |
| Vas | 113 L |
| Sd | 834 cm² |
| Xmax | 3.5 mm |
| Re | 5.2 Ω |
| Bl | 17.9 T·m |
| Mms | 85.3 g |
| Pe | 300 W |
| Sensitivity | 99.1 dB |
Alignment hint
| EBP | 115 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 54.8 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 |
|---|---|---|---|---|---|---|---|---|
| JB Systems WHAREFEDALE B-15-250 | 49.1 -1.5 | 0.409 = | 125 +12 | 4 +0.5 | 98.7 -0.4 | close | + | |
| Audax PR38EX100VST vp_n | 49.1 -1.5 | 0.378 -0.03 | 111 -2 | 3.7 +0.2 | 98.4 -0.7 | close | + | |
| LaVoce WXF15.350-8 | 50 -0.6 | 0.38 -0.02 | 118 +5 | 4.6 +1.1 | 99.3 +0.2 | close | + | |
| Celestion TN1530 | 47.6 -3 | 0.39 -0.01 | 117 +4 | 3.8 +0.3 | 98.4 -0.7 | close | + | |
| LaVoce WXF15.400 | 50 -0.6 | 0.38 -0.02 | 118 +5 | 4.9 +1.4 | 99.3 +0.2 | close | + | |
| LaVoce SSF153.00-8 | 47 -3.6 | 0.406 = | 117 +4 | 5.1 +1.6 | 98.4 -0.7 | close | + | |
| Audax PR38EX100VST | 47.7 -2.9 | 0.372 -0.03 | 117.9 +4.9 | 3.9 +0.4 | 98.6 -0.5 | close | + | |
| RCF L 15P540 | 50 -0.6 | 0.393 -0.01 | 100 -13 | 5.2 +1.7 | 98.4 -0.7 | close | + | |
| PD PD 156 | 50.2 -0.4 | 0.378 -0.03 | 120.2 +7.2 | 6.6 +3.1 | 99.2 +0.1 | close | + | |
| Precision Devices PD 156 | 50.2 -0.4 | 0.378 -0.03 | 120.2 +7.2 | 6.6 +3.1 | 99.2 +0.1 | close | + |
Compare the closest 3 against the 15BM-300B →
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.