Beyma 15B42
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 24.2 Hz |
| Qts | 0.185 |
| Qes | 0.189 |
| Qms | 7.869 |
| Vas | 480.9 L |
| Sd | 880 cm² |
| Xmax | 4 mm |
| Re | 6.01 Ω |
| Bl | 21.7 T·m |
| Mms | 97.6 g |
| Pe | 150 W |
| Sensitivity | 98.8 dB |
Alignment hint
| EBP | 128 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 35.3 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 |
|---|---|---|---|---|---|---|---|---|
| Tannoy DU 386 | 22 -2.2 | 0.185 = | 483 +2.1 | 4 = | 97.6 -1.2 | close | 85 W vs 150 W: lower power handling | + |
| Tannoy HPD 385A | 22 -2.2 | 0.185 = | 483 +2.1 | 4 = | 97.6 -1.2 | close | 85 W vs 150 W: lower power handling | + |
| Tannoy K3828 | 22 -2.2 | 0.185 = | 483 +2.1 | 4 = | 97.6 -1.2 | close | 85 W vs 150 W: lower power handling | + |
| Fluxmag 1504-BM | 22.7 -1.5 | 0.183 = | 469.9 -11 | 5 +1 | 98 -0.8 | close | + | |
| Tannoy K3838 | 22 -2.2 | 0.176 -0.01 | 481.4 +0.5 | 4 = | 97.9 -0.9 | close | + | |
| Audax PR38S100 | 24 -0.2 | 0.171 -0.01 | 423 -57.9 | 4 = | 98.7 -0.1 | close | + | |
| Fostex L 470 | 25 +0.8 | 0.203 +0.02 | 457 -23.9 | 4.2 +0.2 | 98 -0.8 | close | + | |
| Supravox 400-2000EXC_15V | 25 +0.8 | 0.196 +0.01 | 429 -51.9 | 4.9 +0.9 | 98.1 -0.7 | close | + | |
| Beyma 15BR46 | 24.2 = | 0.185 = | 480.9 = | 2.5 -1.5 | 98.8 = | close | Xmax 2.5 mm < 4 mm: lower excursion-limited SPL | + |
| Supravox 400 GN-A | 23 -1.2 | 0.196 +0.01 | 448 -32.9 | 5 +1 | 97.2 -1.6 | close | + |
Compare the closest 3 against the 15B42 →
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.