Beyma 15GT200 v1990
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.236 |
| Qes | 0.273 |
| Qms | 1.75 |
| Vas | 276 L |
| Sd | 880 cm² |
| Xmax | 5 mm |
| Re | 5.8 Ω |
| Bl | 19.8 T·m |
| Mms | 86.2 g |
| Pe | 250 W |
| Sensitivity | 99.4 dB |
Alignment hint
| EBP | 125 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 34.6 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 |
|---|---|---|---|---|---|---|---|---|
| Altec 921-8A | 34.1 +0.1 | 0.257 +0.02 | 299 +23 | 5.2 +0.2 | 100.1 +0.7 | close | + | |
| Beyma 15BR400 | 30 -4 | 0.236 = | 274 -2 | 6 +1 | 98.3 -1.1 | close | + | |
| Celestion NTR15-3018E v2015 | 34.6 +0.6 | 0.245 +0.01 | 225.7 -50.3 | 5 = | 99.1 -0.3 | close | + | |
| RCF L 15/541 | 30.9 -3.1 | 0.236 = | 300 +24 | 5.6 +0.6 | 98.1 -1.3 | close | + | |
| JBL E145 | 35 +1 | 0.249 +0.01 | 274.7 -1.3 | 4.1 -0.9 | 100 +0.6 | close | 150 W vs 250 W: lower power handling · Xmax 4.1 mm < 5 mm: lower excursion-limited SPL | + |
| Beyma 15GT200 v2 | 31 -3 | 0.218 -0.02 | 270 -6 | 5.4 +0.4 | 98.8 -0.6 | close | + | |
| Beyma 15GT200 v1 | 30.4 -3.6 | 0.223 -0.01 | 270 -6 | 5.5 +0.5 | 98.4 -1 | close | + | |
| P.Audio BM15CX38 | 36 +2 | 0.221 -0.01 | 287 +11 | 4.5 -0.5 | 100.2 +0.8 | close | Xmax 4.5 mm < 5 mm: lower excursion-limited SPL | + |
| Fane SOVEREIGN PRO 15-600N | 33 -1 | 0.222 -0.01 | 310 +34 | 6.5 +1.5 | 100.5 +1.1 | close | + | |
| Beyma SM115/K vp2 | 29.8 -4.2 | 0.228 -0.01 | 291 +15 | 8 +3 | 99 -0.4 | close | + |
Compare the closest 3 against the 15GT200 v1990 →
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.