Monacor SP-300
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 25 Hz |
| Qts | 0.57 |
| Qes | 0.726 |
| Qms | 2.65 |
| Vas | 270 L |
| Sd | 510 cm² |
| Xmax | 2.5 mm |
| Re | 6.5 Ω |
| Bl | 8.8 T·m |
| Mms | 54.7 g |
| Pe | 100 W |
| Sensitivity | 90.5 dB |
Alignment hint
| EBP | 34 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 501 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 |
|---|---|---|---|---|---|---|---|---|
| Tonsil GDN 30/60/1 | 25 = | 0.579 +0.01 | 327 +57 | 3.1 +0.6 | 90.2 -0.3 | close | 60 W vs 100 W: lower power handling | + |
| Monacor SPP-300 | 25 = | 0.481 -0.09 | 235 -35 | 3.5 +1 | 90.7 +0.2 | close | + | |
| Europsonic HP30/70 | 30 +5 | 0.582 +0.01 | 204.7 -65.3 | 4.3 +1.8 | 90.9 +0.4 | usable | 35 W vs 100 W: lower power handling | + |
| JBL 2213 | 25 = | 0.49 -0.08 | 235 -35 | 6.8 +4.3 | 93.1 +2.6 | usable | 50 W vs 100 W: lower power handling | + |
| JBL 123A | 25 = | 0.49 -0.08 | 235 -35 | 7.9 +5.4 | 93.1 +2.6 | usable | + | |
| JBL 2213H | 25 = | 0.49 -0.08 | 235 -35 | 7.9 +5.4 | 93.1 +2.6 | usable | 75 W vs 100 W: lower power handling | + |
| Sphynx SP-W12-PRO-2 | 33 +8 | 0.574 = | 284 +14 | 4.3 +1.8 | 94.5 +4 | usable | + | |
| Philips AD12250W8 vp doum2 | 28.7 +3.7 | 0.51 -0.06 | 237 -33 | 6 +3.5 | 92.5 +2 | usable | + | |
| Alpine 6126GX | 26 +1 | 0.532 -0.04 | 233 -37 | 8.2 +5.7 | 94.5 +4 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| ERS HP30/100 07172 | 30 +5 | 0.588 +0.02 | 176.8 -93.2 | 2.8 +0.3 | 91.2 +0.7 | usable | + |
Compare the closest 3 against the SP-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.