JBL GTO 1264
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 26.7 Hz |
| Qts | 0.428 |
| Qes | 0.47 |
| Qms | 4.77 |
| Vas | 83.1 L |
| Sd | 532 cm² |
| Xmax | 6.3 mm |
| Re | 3.39 Ω |
| Bl | 14.3 T·m |
| Mms | 169.5 g |
| Pe | 300 W |
| Sensitivity | 91 dB |
Alignment hint
| EBP | 57 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 48 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 |
|---|---|---|---|---|---|---|---|---|
| Infinity 1230W | 27.3 +0.6 | 0.437 +0.01 | 78.5 -4.6 | 7.9 +1.6 | 91 = | close | + | |
| Aura Sound NS12-794-4A | 27 +0.3 | 0.423 -0.01 | 78 -5.1 | 9.9 +3.6 | 90.9 -0.1 | close | + | |
| JL Audio 12W3V3-4 | 26.7 = | 0.446 +0.02 | 80.6 -2.5 | 10.9 +4.6 | 90.6 -0.4 | close | + | |
| JBL CS1204 | 24.8 -1.9 | 0.429 = | 91.1 +8 | 6.3 = | 90.3 -0.7 | close | + | |
| Rythmik Audio DS1200 | 26 -0.7 | 0.444 +0.02 | 88 +4.9 | 8.8 +2.5 | 91.7 +0.7 | close | + | |
| Clarion WG3020 | 28 +1.3 | 0.43 = | 93.4 +10.3 | 6 -0.3 | 91.9 +0.9 | close | Xmax 6 mm < 6.3 mm: lower excursion-limited SPL | + |
| JBL GT 120 | 24.8 -1.9 | 0.429 = | 91.1 +8 | 8.1 +1.8 | 90.3 -0.7 | close | + | |
| JBL GT 120MKII | 24.8 -1.9 | 0.429 = | 91.1 +8 | 8.1 +1.8 | 90.3 -0.7 | close | + | |
| JBL GT4-12 | 24.8 -1.9 | 0.429 = | 91.1 +8 | 8.1 +1.8 | 90.3 -0.7 | close | + | |
| Nakamichi SP-W30S | 27.8 +1.1 | 0.464 +0.04 | 92.3 +9.2 | 6.6 +0.3 | 91.3 +0.3 | close | 200 W vs 300 W: lower power handling | + |
Compare the closest 3 against the GTO 1264 →
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.