Monacor SP-38A/300PA
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 48 Hz |
| Qts | 0.298 |
| Qes | 0.31 |
| Qms | 7.45 |
| Vas | 101 L |
| Sd | 880 cm² |
| Xmax | 3.4 mm |
| Re | 5.4 Ω |
| Bl | 24.9 T·m |
| Mms | 118.2 g |
| Pe | 300 W |
| Sensitivity | 99.3 dB |
Alignment hint
| EBP | 155 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 21.8 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 |
|---|---|---|---|---|---|---|---|---|
| Audax PR380T10 | 49 +1 | 0.314 +0.02 | 107 +6 | 3.7 +0.3 | 99.2 -0.1 | close | + | |
| PHL Audio 5232Nd | 46 -2 | 0.297 = | 105 +4 | 4.3 +0.9 | 98.1 -1.2 | close | + | |
| Ciare NDH 15-3 | 49.8 +1.8 | 0.296 = | 110.9 +9.9 | 4.3 +0.9 | 99.7 +0.4 | close | + | |
| Sica 15 K 4 PL | 46.5 -1.5 | 0.3 = | 102.3 +1.3 | 8 +4.6 | 99.2 -0.1 | close | + | |
| Audax PR380T4 | 49 +1 | 0.322 +0.02 | 107 +6 | 3.8 +0.4 | 99.1 -0.2 | close | + | |
| B&C 14 NDL 88 | 45 -3 | 0.298 = | 102 +1 | 6.7 +3.3 | 98.8 -0.5 | close | + | |
| JB Systems 153431 SW 15 250 | 49 +1 | 0.309 +0.01 | 115.3 +14.3 | 4.1 +0.7 | 99 -0.3 | close | + | |
| Ciare NDH 15-4 | 48.6 +0.6 | 0.312 +0.01 | 96.9 -4.1 | 5.9 +2.5 | 98.6 -0.7 | close | + | |
| Beyma 15MC700Nd | 49 +1 | 0.31 +0.01 | 105 +4 | 7 +3.6 | 100 +0.7 | close | + | |
| PHL Audio 5241 M | 48 = | 0.253 -0.04 | 105 +4 | 3.9 +0.5 | 99.4 +0.1 | close | + |
Compare the closest 3 against the SP-38A/300PA →
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.