hertz Hertz Audio ES 250.5
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 4 Ω |
| Fs | 35 Hz |
| Qts | 0.609 |
| Qes | 0.65 |
| Qms | 9.6 |
| Vas | 27.7 L |
| Sd | 344 cm² |
| Xmax | 6.6 mm |
| Re | 2.9 Ω |
| Bl | 11 T·m |
| Mms | 123.8 g |
| Pe | 250 W |
| Sensitivity | 89 dB |
Alignment hint
| EBP | 54 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 79.6 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 |
|---|---|---|---|---|---|---|---|---|
| Focal R-250S | 35.4 +0.4 | 0.596 -0.01 | 28.1 +0.4 | 7 +0.4 | 88.2 -0.8 | close | + | |
| MTX Audio 5510-44 | 33.6 -1.4 | 0.63 +0.02 | 29.2 +1.5 | 7.2 +0.6 | 90.1 +1.1 | close | 2 Ω vs 4 Ω: amp load changes | + |
| JL Audio 10W0V3-4 | 32.1 -2.9 | 0.604 -0.01 | 31 +3.3 | 8.7 +2.1 | 86.7 -2.3 | close | 8 Ω vs 4 Ω: amp load changes | + |
| hertz Hertz Audio ML2500.3 | 33 -2 | 0.598 -0.01 | 23.5 -4.2 | 10.3 +3.7 | 87.8 -1.2 | close | + | |
| Hertz Audio DS 250.3 | 36 +1 | 0.62 +0.01 | 29 +1.3 | 10 +3.4 | 84.8 -4.2 | close | + | |
| Polk Audio DB1040 | 35 = | 0.55 -0.06 | 28.3 +0.6 | 7.5 +0.9 | 85 -4 | close | + | |
| Wavecor SW275BD01 | 30.8 -4.2 | 0.564 -0.05 | 31 +3.3 | 6.9 +0.3 | 87.2 -1.8 | close | 180 W vs 250 W: lower power handling | + |
| Sony XS-GTR100L | 40 +5 | 0.56 -0.05 | 27 -0.7 | 7.5 +0.9 | 86.2 -2.8 | close | + | |
| Focal SUB10WM | 31 -4 | 0.683 +0.07 | 28 +0.3 | 8.5 +1.9 | 86.5 -2.5 | usable | + | |
| Morel PRIMO 10 | 35 = | 0.558 -0.05 | 38 +10.3 | 8 +1.4 | 90 +1 | usable | + |
Compare the closest 3 against the ES 250.5 →
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.