Monacor SPP-280
Thiele-Small parameters
| Nominal size | 10" |
|---|---|
| Impedance | 8 Ω |
| Fs | 25 Hz |
| Qts | 0.292 |
| Qes | 0.31 |
| Qms | 4.98 |
| Vas | 145 L |
| Sd | 350 cm² |
| Xmax | 4.6 mm |
| Re | 6.2 Ω |
| Bl | 12.3 T·m |
| Mms | 48 g |
| Pe | 75 W |
| Sensitivity | 91.7 dB |
Alignment hint
| EBP | 81 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 29.8 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 |
|---|---|---|---|---|---|---|---|---|
| Eton 11-612C8/50RP | 23 -2 | 0.289 = | 152 +7 | 5 +0.4 | 91.7 = | close | + | |
| Eton 11-581/50 HEX v2015 | 23 -2 | 0.299 +0.01 | 151 +6 | 5 +0.4 | 91.6 -0.1 | close | + | |
| Vifa WCF265 | 24 -1 | 0.305 +0.01 | 155.9 +10.9 | 5 +0.4 | 91.5 -0.2 | close | + | |
| Eton 11-581/C8/50 HEX SII | 24 -1 | 0.31 +0.02 | 134 -11 | 5 +0.4 | 91.5 -0.2 | close | + | |
| Audiotechnology FLEXUNITS 10 A 77 25 10 | 25 = | 0.26 -0.03 | 140 -5 | 4.3 -0.3 | 90.6 -1.1 | close | Xmax 4.3 mm < 4.6 mm: lower excursion-limited SPL | + |
| Monacor SPH-250TC | 24 -1 | 0.304 +0.01 | 130 -15 | 4.5 -0.1 | 90.2 -1.5 | close | Xmax 4.5 mm < 4.6 mm: lower excursion-limited SPL | + |
| SEAS CA26RE4X - H1316 | 25 = | 0.279 -0.01 | 164 +19 | 7.3 +2.7 | 92.5 +0.8 | close | + | |
| Volt B250.8 | 24 -1 | 0.298 +0.01 | 126 -19 | 5.5 +0.9 | 90.3 -1.4 | close | + | |
| SEAS CA26RE4X vp1 | 27.3 +2.3 | 0.317 +0.03 | 143 -2 | 7.1 +2.5 | 92.5 +0.8 | close | + | |
| Eton 11-581/50 HEX | 21 -4 | 0.296 = | 153 +8 | 5 +0.4 | 90.5 -1.2 | close | + |
Compare the closest 3 against the SPP-280 →
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.