P.Audio E18-400S
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 33 Hz |
| Qts | 0.498 |
| Qes | 0.53 |
| Qms | 8.25 |
| Vas | 284.4 L |
| Sd | 1225 cm² |
| Xmax | 5 mm |
| Re | 6 Ω |
| Bl | 20.1 T·m |
| Mms | 172.1 g |
| Pe | 400 W |
| Sensitivity | 96.1 dB |
Alignment hint
| EBP | 62 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 279.9 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 |
|---|---|---|---|---|---|---|---|---|
| Radian 2218-8 | 33.8 +0.8 | 0.518 +0.02 | 282.9 -1.5 | 9 +4 | 95.5 -0.6 | close | + | |
| Radian 2218 | 33.8 +0.8 | 0.525 +0.03 | 286 +1.6 | 9 +4 | 95.5 -0.6 | close | + | |
| Beyma SM118/N | 36 +3 | 0.492 -0.01 | 300 +15.6 | 5.5 +0.5 | 97.2 +1.1 | close | + | |
| Eminence KILOMAX 18 | 33.8 +0.8 | 0.527 +0.03 | 281.4 -3 | 10 +5 | 96.4 +0.3 | close | + | |
| Mivoc WS 1865 C-4 | 35 +2 | 0.44 -0.06 | 270 -14.4 | 5 = | 95.7 -0.4 | close | 4 Ω vs 8 Ω: amp load changes · 300 W vs 400 W: lower power handling | + |
| B&C 18 PS 100 (prodance) | 31.5 -1.5 | 0.458 -0.04 | 268 -16.4 | 8 +3 | 96.2 +0.1 | close | + | |
| Monacor SP-46A/500BS | 36 +3 | 0.485 -0.01 | 250 -34.4 | 6 +1 | 96.6 +0.5 | close | + | |
| MC Kenzie C18.500BS | 37 +4 | 0.484 -0.01 | 252 -32.4 | 6.5 +1.5 | 96.4 +0.3 | close | + | |
| SB Audience 18SW800 | 33 = | 0.456 -0.04 | 258.1 -26.3 | 9.3 +4.3 | 96.8 +0.7 | close | + | |
| Peavey PRO RIDER 18 1808-8 AL CP | 36 +3 | 0.55 +0.05 | 296.475 +12.08 | 4.6 -0.4 | 95.6 -0.5 | close | Xmax 4.6 mm < 5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the E18-400S →
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.