Monacor SPH-390TC 8 Ohms
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22 Hz |
| Qts | 0.272 |
| Qes | 0.29 |
| Qms | 4.51 |
| Vas | 531 L |
| Sd | 850 cm² |
| Xmax | 7 mm |
| Re | 6 Ω |
| Bl | 16.9 T·m |
| Mms | 99.8 g |
| Pe | 150 W |
| Sensitivity | 96.1 dB |
Alignment hint
| EBP | 76 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 92.2 L |
EBP 50-100: works in either a sealed or ported 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 927-8A | 22.9 +0.9 | 0.278 +0.01 | 496.1 -34.9 | 8.3 +1.3 | 95.1 -1 | close | + | |
| AE Speakers TD15X 8 Ohms | 23.2 +1.2 | 0.287 +0.01 | 467 -64 | 7 = | 96.3 +0.2 | close | + | |
| AE Speakers TD15H | 21 -1 | 0.254 -0.02 | 467 -64 | 7 = | 94.9 -1.2 | close | + | |
| AE Speakers TD15H-8 | 21 -1 | 0.254 -0.02 | 467 -64 | 7 = | 94.9 -1.2 | close | + | |
| AE Speakers TD15H-4 | 21 -1 | 0.254 -0.02 | 467 -64 | 7 = | 97.6 +1.5 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Visaton WS40NG | 25 +3 | 0.252 -0.02 | 500 -31 | 6.5 -0.5 | 97.1 +1 | close | Xmax 6.5 mm < 7 mm: lower excursion-limited SPL | + |
| Audiotechnology 15F1022510KAP | 22 = | 0.288 +0.02 | 410 -121 | 8.5 +1.5 | 94.9 -1.2 | close | + | |
| Monacor SP-400HT v2 | 22 = | 0.241 -0.03 | 510 -21 | 5 -2 | 96.3 +0.2 | close | Xmax 5 mm < 7 mm: lower excursion-limited SPL | + |
| Supravox 400-2000 | 23 +1 | 0.272 = | 450 -81 | 5 -2 | 95.8 -0.3 | close | Xmax 5 mm < 7 mm: lower excursion-limited SPL | + |
| JBL 2235H | 20 -2 | 0.252 -0.02 | 458.7 -72.3 | 8.4 +1.4 | 94.4 -1.7 | close | + |
Compare the closest 3 against the SPH-390TC 8 Ohms →
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.