Sica 15 SR 4 CP
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.29 |
| Qes | 0.3 |
| Qms | 5.53 |
| Vas | 101.2 L |
| Sd | 754.8 cm² |
| Xmax | 8 mm |
| Re | 5.1 Ω |
| Bl | 25.03 T·m |
| Mms | 175.1 g |
| Pe | 1200 W |
| Sensitivity | 95.1 dB |
Alignment hint
| EBP | 113 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 20.5 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 |
|---|---|---|---|---|---|---|---|---|
| LaVoce WAF154.00 | 38 +4 | 0.294 = | 103 +1.8 | 9 +1 | 96 +0.9 | close | + | |
| B&C 15SW100 | 37 +3 | 0.28 -0.01 | 99.5 -1.7 | 12.5 +4.5 | 95 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 15 TBX 100 | 35 +1 | 0.284 -0.01 | 113 +11.8 | 7.6 -0.4 | 96 +0.9 | close | Xmax 7.6 mm < 8 mm: lower excursion-limited SPL | + |
| B&C 15TBX100 | 35 +1 | 0.28 -0.01 | 113 +11.8 | 9 +1 | 96 +0.9 | close | + | |
| Oberton 15XB700 | 37.2 +3.2 | 0.283 -0.01 | 111.02 +9.82 | 9 +1 | 94.8 -0.3 | close | + | |
| B&C 15NBX100 | 37 +3 | 0.27 -0.02 | 109.6 +8.4 | 10 +2 | 95 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Oberton 15NXB1000 | 38.34 +4.34 | 0.283 -0.01 | 105.5 +4.3 | 9 +1 | 97 +1.9 | close | + | |
| B&C 15PZB100 | 39 +5 | 0.29 = | 110 +8.8 | 8 = | 97 +1.9 | close | 700 W vs 1200 W: lower power handling | + |
| Oberton 15XB1000 | 37.2 +3.2 | 0.283 -0.01 | 111.02 +9.82 | 9 +1 | 97 +1.9 | close | + | |
| B&C 15SW100 | 37 +3 | 0.31 +0.02 | 110 +8.8 | 12.5 +4.5 | 95 -0.1 | close | + |
Compare the closest 3 against the 15 SR 4 CP →
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.