Monacor SPP-300
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 25 Hz |
| Qts | 0.481 |
| Qes | 0.6 |
| Qms | 2.43 |
| Vas | 235 L |
| Sd | 510 cm² |
| Xmax | 3.5 mm |
| Re | 6.5 Ω |
| Bl | 10.3 T·m |
| Mms | 62.9 g |
| Pe | 100 W |
| Sensitivity | 90.7 dB |
Alignment hint
| EBP | 42 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 202.4 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| JBL 2213 | 25 = | 0.49 +0.01 | 235 = | 6.8 +3.3 | 93.1 +2.4 | close | 50 W vs 100 W: lower power handling | + |
| JBL 123A | 25 = | 0.49 +0.01 | 235 = | 7.9 +4.4 | 93.1 +2.4 | close | + | |
| JBL 2213H | 25 = | 0.49 +0.01 | 235 = | 7.9 +4.4 | 93.1 +2.4 | close | 75 W vs 100 W: lower power handling | + |
| JBL 125A | 25 = | 0.433 -0.05 | 235 = | 4.8 +1.3 | 92.9 +2.2 | close | 50 W vs 100 W: lower power handling | + |
| JBL 127A | 25 = | 0.433 -0.05 | 235 = | 4.8 +1.3 | 92.9 +2.2 | close | 50 W vs 100 W: lower power handling | + |
| Audax PR300M0 vp AP | 26.9 +1.9 | 0.448 -0.03 | 231 -4 | 4.4 +0.9 | 92.2 +1.5 | close | + | |
| Peerless SLS315 | 24.4 -0.6 | 0.452 -0.03 | 205.2 -29.8 | 7.8 +4.3 | 91.4 +0.7 | close | + | |
| Philips AD12250W8 vp doum2 | 28.7 +3.7 | 0.51 +0.03 | 237 +2 | 6 +2.5 | 92.5 +1.8 | close | + | |
| Siare 31SPCS | 22 -3 | 0.494 +0.01 | 212 -23 | 6 +2.5 | 89 -1.7 | close | + | |
| Peerless 315SWR | 24 -1 | 0.433 -0.05 | 210 -25 | 8 +4.5 | 91.3 +0.6 | close | + |
Compare the closest 3 against the SPP-300 →
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.