Radian 5215B v2015
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 41 Hz |
| Qts | 0.313 |
| Qes | 0.346 |
| Qms | 3.243 |
| Vas | 96.3 L |
| Sd | 883.9 cm² |
| Xmax | 5.1 mm |
| Re | 5.9 Ω |
| Bl | 27.4 T·m |
| Mms | 171.4 g |
| Pe | 625 W |
| Sensitivity | 96.1 dB |
Alignment hint
| EBP | 118 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 23.5 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 15 TBX 100 v2013 | 39 -2 | 0.307 -0.01 | 96 -0.3 | 6.9 +1.8 | 96.4 +0.3 | close | + | |
| B&C 15 TBW 100 | 39 -2 | 0.307 -0.01 | 96 -0.3 | 8.4 +3.3 | 96.4 +0.3 | close | + | |
| B&C 15TBW100 | 39 -2 | 0.31 = | 96 -0.3 | 12 +6.9 | 96 -0.1 | close | + | |
| Beyma 15P1200Nd/N | 42 +1 | 0.313 = | 84.7 -11.6 | 7.1 +2 | 96.8 +0.7 | close | + | |
| Celestion FTR15-4080HDX | 40.5 -0.5 | 0.33 +0.02 | 104.3 +8 | 7.3 +2.2 | 96.8 +0.7 | close | + | |
| Faital PRO 15HP1060 | 40 -1 | 0.31 = | 100.3 +4 | 12.45 +7.35 | 97 +0.9 | close | + | |
| the box 15LB100-8W | 40.9 -0.1 | 0.334 +0.02 | 113.5 +17.2 | 5.5 +0.4 | 97.1 +1 | close | + | |
| Faital PRO 15HP1030 | 40 -1 | 0.34 +0.03 | 95 -1.3 | 12.45 +7.35 | 96 -0.1 | close | + | |
| Dayton Audio PN395-8 | 44.1 +3.1 | 0.346 +0.03 | 96.8 +0.5 | 6.1 +1 | 97.2 +1.1 | close | + | |
| Faital PRO 15HP1030 | 40 -1 | 0.3 -0.01 | 88.3 -8 | 12.45 +7.35 | 96 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the 5215B v2015 →
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.