JBL M151-8
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 45 Hz |
| Qts | 0.256 |
| Qes | 0.27 |
| Qms | 4.8 |
| Vas | 198.2 L |
| Sd | 882.6 cm² |
| Xmax | 4.4 mm |
| Re | 4.8 Ω |
| Bl | 18.6 T·m |
| Mms | 68.9 g |
| Pe | 300 W |
| Sensitivity | 102.5 dB |
Alignment hint
| EBP | 167 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 29.9 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 |
|---|---|---|---|---|---|---|---|---|
| Radian 5215B oem2 | 42 -3 | 0.247 -0.01 | 197 -1.2 | 5.5 +1.1 | 100.6 -1.9 | close | + | |
| Radian 5215B oem3 | 42 -3 | 0.247 -0.01 | 197 -1.2 | 5.5 +1.1 | 100.6 -1.9 | close | + | |
| Hiwell 15NDF100C1 | 45 = | 0.285 +0.03 | 188 -10.2 | 6 +1.6 | 101.6 -0.9 | close | + | |
| DAS Audio 15B | 42 -3 | 0.241 -0.02 | 198 -0.2 | 4 -0.4 | 101.2 -1.3 | close | Xmax 4 mm < 4.4 mm: lower excursion-limited SPL | + |
| Audax PR38LXT250 | 43.5 -1.5 | 0.273 +0.02 | 193 -5.2 | 4 -0.4 | 100.8 -1.7 | close | Xmax 4 mm < 4.4 mm: lower excursion-limited SPL | + |
| 18 Sound 15MB650 | 40 -5 | 0.26 = | 210 +11.8 | 4 -0.4 | 101.5 -1 | close | Xmax 4 mm < 4.4 mm: lower excursion-limited SPL | + |
| 18 Sound 15MB700 | 42 -3 | 0.29 +0.03 | 202 +3.8 | 5.5 +1.1 | 103 +0.5 | close | + | |
| PHL Audio 5380 | 44 -1 | 0.278 +0.02 | 180 -18.2 | 4.4 = | 100.5 -2 | close | + | |
| RCF L 15P801 | 45 = | 0.237 -0.02 | 163 -35.2 | 4.6 +0.2 | 101.7 -0.8 | close | + | |
| Radian 5215B v2017 | 40 -5 | 0.266 +0.01 | 202 +3.8 | 5.5 +1.1 | 100.3 -2.2 | close | + |
Compare the closest 3 against the M151-8 →
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.