Audax PR240SB
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 8 Ω |
| Fs | 27 Hz |
| Qts | 0.459 |
| Qes | 0.496 |
| Qms | 6.23 |
| Vas | 155 L |
| Sd | 340 cm² |
| Xmax | 4 mm |
| Re | 6.3 Ω |
| Bl | 8.8 T·m |
| Mms | 36.3 g |
| Pe | 80 W |
| Sensitivity | 90.9 dB |
Alignment hint
| EBP | 54 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 112.9 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 |
|---|---|---|---|---|---|---|---|---|
| SEAS P25REX | 27 = | 0.437 -0.02 | 156.8 +1.8 | 6 +2 | 90.7 -0.2 | close | + | |
| SEAS P25REX/DD | 27 = | 0.437 -0.02 | 156.8 +1.8 | 6 +2 | 90.7 -0.2 | close | + | |
| Infinity 902-3061 | 27 = | 0.475 +0.02 | 148 -7 | 4 = | 92.9 +2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Audax WFR24 Ticonal | 30 +3 | 0.457 = | 162.4 +7.4 | 4 = | 91.7 +0.8 | close | 30 W vs 80 W: lower power handling | + |
| Peerless 832531 | 27.4 +0.4 | 0.41 -0.05 | 160.6 +5.6 | 4 = | 91.4 +0.5 | close | + | |
| Morel MW 1077 | 28 +1 | 0.501 +0.04 | 147 -8 | 4.3 +0.3 | 89.9 -1 | close | + | |
| SEAS A26RE4 - H1411 | 25 -2 | 0.415 -0.04 | 161 +6 | 4 = | 90.6 -0.3 | close | + | |
| Siare 28SPCR | 26 -1 | 0.499 +0.04 | 143 -12 | 4 = | 89.2 -1.7 | close | 60 W vs 80 W: lower power handling | + |
| Dayton Audio RS270S-8 | 26.9 -0.1 | 0.41 -0.05 | 147.2 -7.8 | 6 +2 | 90 -0.9 | close | + | |
| Audax HT240M0 vp1 | 27.5 +0.5 | 0.404 -0.05 | 172 +17 | 4.5 +0.5 | 91.7 +0.8 | close | + |
Compare the closest 3 against the PR240SB →
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.