JBL 1800 GTI
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 4 Ω |
| Fs | 30 Hz |
| Qts | 0.431 |
| Qes | 0.46 |
| Qms | 6.77 |
| Vas | 362.6 L |
| Sd | 1270 cm² |
| Xmax | 9.6 mm |
| Re | 2.5 Ω |
| Bl | 13.4 T·m |
| Mms | 175.5 g |
| Pe | 600 W |
| Sensitivity | 100.3 dB |
Alignment hint
| EBP | 65 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 214.3 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 |
|---|---|---|---|---|---|---|---|---|
| McCauley 6152-8 | 30 = | 0.434 = | 354 -8.6 | 12 +2.4 | 97.1 -3.2 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Peerless FSL-1830R09-04 | 27.8 -2.2 | 0.427 = | 356 -6.6 | 8.5 -1.1 | 97.8 -2.5 | close | 400 W vs 600 W: lower power handling · Xmax 8.5 mm < 9.6 mm: lower excursion-limited SPL | + |
| SB Audience BIANCO-18SW450 v2024 | 28 -2 | 0.445 +0.01 | 370.4 +7.8 | 9.1 -0.5 | 96.4 -3.9 | close | 8 Ω vs 4 Ω: amp load changes · 450 W vs 600 W: lower power handling · Xmax 9.1 mm < 9.6 mm: lower excursion-limited SPL | + |
| Beyma 18WRS600 | 30 = | 0.47 +0.04 | 354 -8.6 | 8.5 -1.1 | 97 -3.3 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 8.5 mm < 9.6 mm: lower excursion-limited SPL | + |
| Eminence KILOMAX PRO 18 A v2016 | 32 +2 | 0.467 +0.04 | 331.5 -31.1 | 10 +0.4 | 97.4 -2.9 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Faital PRO 18FH500 v2016 | 30 = | 0.35 -0.08 | 374.8 +12.2 | 9.2 -0.4 | 98.4 -1.9 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9.2 mm < 9.6 mm: lower excursion-limited SPL | + |
| SB Audience ROSSO-18SW650 | 31 +1 | 0.418 -0.01 | 304.3 -58.3 | 9 -0.6 | 97.2 -3.1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 9.6 mm: lower excursion-limited SPL | + |
| Beyma 18LX60 vp1 | 31.3 +1.3 | 0.472 +0.04 | 385 +22.4 | 9 -0.6 | 96.8 -3.5 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 9.6 mm: lower excursion-limited SPL | + |
| Beyma 18LX60 (prodance) | 31.3 +1.3 | 0.472 +0.04 | 385.3 +22.7 | 9 -0.6 | 96.8 -3.5 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 9.6 mm: lower excursion-limited SPL | + |
| Selenium 18SWS1100 | 34 +4 | 0.447 +0.02 | 316 -46.6 | 9.3 -0.3 | 97.8 -2.5 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9.3 mm < 9.6 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 1800 GTI →
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.