Altec 418-8LF vp CF1
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 39 Hz |
| Qts | 0.275 |
| Qes | 0.315 |
| Qms | 2.142 |
| Vas | 211 L |
| Sd | 855.3 cm² |
| Xmax | 1.3 mm |
| Re | 5.12 Ω |
| Bl | 17.9 T·m |
| Mms | 80.8 g |
| Pe | 150 W |
| Sensitivity | 99.9 dB |
Alignment hint
| EBP | 124 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 37.6 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Altec 418-8LF vp CF2 | 36.3 -2.7 | 0.254 -0.02 | 230.3 +19.3 | 1.3 = | 99.7 -0.2 | close | + | |
| Monacor SP-15/300PA | 38 -1 | 0.275 = | 232 +21 | 3 +1.7 | 99.1 -0.8 | close | + | |
| Audax PR38LEX100VST | 38.7 -0.3 | 0.258 -0.02 | 221.1 +10.1 | 4 +2.7 | 100.1 +0.2 | close | + | |
| Eminence PS15-5008 | 38.8 -0.2 | 0.273 = | 198.7 -12.3 | 6.3 +5 | 99.8 -0.1 | close | + | |
| Ciare 15.75 NdW vp | 37.7 -1.3 | 0.286 +0.01 | 215 +4 | 5 +3.7 | 99.7 -0.2 | close | + | |
| P.Audio E 300S | 39 = | 0.287 +0.01 | 228 +17 | 4.3 +3 | 99.5 -0.4 | close | + | |
| P.Audio E15-300S v2015 | 39 = | 0.287 +0.01 | 228.8 +17.8 | 4.3 +3 | 99.5 -0.4 | close | + | |
| B&C 15 PLB 76 (prodance) | 38.7 -0.3 | 0.259 -0.02 | 215 +4 | 5 +3.7 | 100.6 +0.7 | close | + | |
| Celestion FTX1530 | 42.5 +3.5 | 0.276 = | 172.1 -38.9 | 2 +0.7 | 100.2 +0.3 | close | + | |
| Radian 5215B v2017 | 40 +1 | 0.266 -0.01 | 202 -9 | 5.5 +4.2 | 100.3 +0.4 | close | + |
Compare the closest 3 against the 418-8LF vp CF1 →
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.