JBL 127H-1
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 8 Ω |
| Fs | 31 Hz |
| Qts | 0.357 |
| Qes | 0.374 |
| Qms | 8.077 |
| Vas | 112 L |
| Sd | 320 cm² |
| Xmax | 5 mm |
| Re | 6.1 Ω |
| Bl | 10.4 T·m |
| Mms | 33.8 g |
| Pe | 50 W |
| Sensitivity | 92.7 dB |
Alignment hint
| EBP | 83 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 38.3 L |
EBP 50-100: works in either a sealed or ported 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 |
|---|---|---|---|---|---|---|---|---|
| Volt B250 | 31.7 +0.7 | 0.377 +0.02 | 104 -8 | 6 +1 | 92.8 +0.1 | close | + | |
| Focal 11C 726 | 30.9 -0.1 | 0.378 +0.02 | 120 +8 | 6.9 +1.9 | 92.4 -0.3 | close | + | |
| Beyma 10B60 | 31 = | 0.36 = | 115 +3 | 4 -1 | 91.9 -0.8 | close | Xmax 4 mm < 5 mm: lower excursion-limited SPL | + |
| Focal 10N511 | 29.6 -1.4 | 0.371 +0.01 | 121 +9 | 6 +1 | 92.2 -0.5 | close | + | |
| Visaton W250S-8 | 31 = | 0.323 -0.03 | 121 +9 | 6.5 +1.5 | 92.5 -0.2 | close | + | |
| Visaton W250S v2 | 31 = | 0.323 -0.03 | 121 +9 | 6.5 +1.5 | 92.5 -0.2 | close | + | |
| Visaton W250S8 | 31 = | 0.323 -0.03 | 121 +9 | 6.5 +1.5 | 92.5 -0.2 | close | + | |
| Visaton W250S8 v2 | 31 = | 0.323 -0.03 | 121 +9 | 6.5 +1.5 | 92.5 -0.2 | close | + | |
| Sony XS-L100C | 28.1 -2.9 | 0.362 +0.01 | 104 -8 | 6.3 +1.3 | 93.4 +0.7 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Focal 10V 6411 | 32.9 +1.9 | 0.378 +0.02 | 116.9 +4.9 | 7 +2 | 93.4 +0.7 | close | + |
Compare the closest 3 against the 127H-1 →
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.