Eclipse 8712.8
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 20 Hz |
| Qts | 0.39 |
| Qes | 0.4 |
| Qms | 13.2 |
| Vas | 84.95 L |
| Sd | 471 cm² |
| Xmax | 18.5 mm |
| Re | 7.2 Ω |
| Bl | 23.03 T·m |
| Mms | 234.5 g |
| Pe | 200 W |
| Sensitivity | 84.1 dB |
Alignment hint
| EBP | 50 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 37.1 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 |
|---|---|---|---|---|---|---|---|---|
| Soundstream R1-12 | 21.5 +1.5 | 0.465 +0.08 | 81.1 -3.85 | 18 -0.5 | 84.8 +0.7 | close | Xmax 18 mm < 18.5 mm: lower excursion-limited SPL | + |
| Infinity REFERENCE 1260W | 23.5 +3.5 | 0.39 = | 83 -1.95 | 13 -5.5 | 86 +1.9 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 13 mm < 18.5 mm: lower excursion-limited SPL | + |
| RE Audio XXX12-V2-4 | 21 +1 | 0.404 +0.01 | 73.9 -11.05 | 13.5 -5 | 86.5 +2.4 | usable | Xmax 13.5 mm < 18.5 mm: lower excursion-limited SPL | + |
| CSS Audio SDX12 DVC | 21.3 +1.3 | 0.375 -0.02 | 67.5 -17.45 | 13.4 -5.1 | 87.3 +3.2 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 13.4 mm < 18.5 mm: lower excursion-limited SPL | + |
| Tang Band WQ-1858 | 20 = | 0.451 +0.06 | 116 +31.05 | 13.3 -5.2 | 85.3 +1.2 | usable | Xmax 13.3 mm < 18.5 mm: lower excursion-limited SPL | + |
| Infinity KAPPA PERFECT 12.1 | 23.32 +3.32 | 0.44 +0.05 | 99.97 +15.02 | 14.15 -4.35 | 86.2 +2.1 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 14.15 mm < 18.5 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS315HO-44 v2016 | 21.5 +1.5 | 0.369 -0.02 | 61.3 -23.65 | 11.3 -7.2 | 84.6 +0.5 | usable | Xmax 11.3 mm < 18.5 mm: lower excursion-limited SPL | + |
| Ground Zero GZUW 300SQ | 25.3 +5.3 | 0.423 +0.03 | 86.6 +1.65 | 12.9 -5.6 | 88 +3.9 | usable | Xmax 12.9 mm < 18.5 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS315HFA-8 v2016 | 22.2 +2.2 | 0.444 +0.05 | 97.2 +12.25 | 11 -7.5 | 85.8 +1.7 | usable | Xmax 11 mm < 18.5 mm: lower excursion-limited SPL | + |
| TC Sounds EPIC 12 DVC v2012 | 24 +4 | 0.394 = | 91.1 +6.15 | 12.5 -6 | 90.2 +6.1 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 12.5 mm < 18.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 8712.8 →
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.