AER SB 18
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 26 Hz |
| Qts | 0.383 |
| Qes | 0.41 |
| Qms | 5.8 |
| Vas | 288 L |
| Sd | 1200 cm² |
| Xmax | 8.3 mm |
| Re | 5.5 Ω |
| Bl | 24 T·m |
| Mms | 262.6 g |
| Pe | 500 W |
| Sensitivity | 94.5 dB |
Alignment hint
| EBP | 63 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 119.6 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 |
|---|---|---|---|---|---|---|---|---|
| BMS 18S430V1 | 25.5 -0.5 | 0.383 = | 288 = | 7.5 -0.8 | 94.3 -0.2 | close | Xmax 7.5 mm < 8.3 mm: lower excursion-limited SPL | + |
| Beyma 18PWB1000/FE v2016 | 27 +1 | 0.381 = | 317 +29 | 11.7 +3.4 | 95.2 +0.7 | close | + | |
| Beyma 18G550 (prodance) | 29.5 +3.5 | 0.382 = | 291 +3 | 9 +0.7 | 96.7 +2.2 | close | + | |
| Beyma 18PWB1000Fe/S | 27 +1 | 0.38 = | 317 +29 | 12.5 +4.2 | 96 +1.5 | close | + | |
| BMS 18N860 | 24 -2 | 0.372 -0.01 | 304 +16 | 15 +6.7 | 93.7 -0.8 | close | + | |
| Peavey LOW RIDER 18 | 28.9 +2.9 | 0.429 +0.05 | 288 = | 9.6 +1.3 | 93.7 -0.8 | close | + | |
| BMS 18N862 vp | 24.8 -1.2 | 0.383 = | 345.6 +57.6 | 16.2 +7.9 | 94.8 +0.3 | close | + | |
| Sica 18 PFS 4 | 28.7 +2.7 | 0.37 -0.01 | 245.9 -42.1 | 9.5 +1.2 | 95.1 +0.6 | close | + | |
| BMS 18N830V2 | 31 +5 | 0.37 -0.01 | 262 -26 | 8 -0.3 | 94.9 +0.4 | close | 6 Ω vs 8 Ω: amp load changes · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| JBL 2269H | 28 +2 | 0.361 -0.02 | 237 -51 | 10.6 +2.3 | 95 +0.5 | close | + |
Compare the closest 3 against the SB 18 →
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.