Precision Devices PD184
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 16 Ω |
| Fs | 27 Hz |
| Qts | 0.253 |
| Qes | 0.26 |
| Qms | 9.6 |
| Vas | 473 L |
| Sd | 1150 cm² |
| Xmax | 9.5 mm |
| Re | 5.9 Ω |
| Bl | 23.04 T·m |
| Mms | 138 g |
| Pe | 600 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 104 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 69.4 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 |
|---|---|---|---|---|---|---|---|---|
| Faital PRO 18FH500 | 28 +1 | 0.29 +0.04 | 456.7 -16.3 | 9.45 -0.05 | 98 +1 | close | 4 Ω vs 16 Ω: amp load changes · Xmax 9.45 mm < 9.5 mm: lower excursion-limited SPL | + |
| Faital PRO 18FH510 | 30 +3 | 0.26 +0.01 | 391.4 -81.6 | 9.45 -0.05 | 98 +1 | close | 4 Ω vs 16 Ω: amp load changes · Xmax 9.45 mm < 9.5 mm: lower excursion-limited SPL | + |
| RCF LF 18X400 | 28 +1 | 0.255 = | 360 -113 | 9 -0.5 | 98.6 +1.6 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| RCF LF18G400 | 28 +1 | 0.27 +0.02 | 360 -113 | 9 -0.5 | 97.5 +0.5 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Celestion FTR18-4080HD | 26 -1 | 0.272 +0.02 | 395.6 -77.4 | 8 -1.5 | 97.5 +0.5 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 8 mm < 9.5 mm: lower excursion-limited SPL | + |
| RCF L 18P200KN | 22.3 -4.7 | 0.265 +0.01 | 550 +77 | 9 -0.5 | 96.4 -0.6 | usable | 8 Ω vs 16 Ω: amp load changes · 350 W vs 600 W: lower power handling · Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| PD PD 182 | 28 +1 | 0.238 -0.02 | 391 -82 | 8.2 -1.3 | 98.7 +1.7 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 8.2 mm < 9.5 mm: lower excursion-limited SPL | + |
| Precision Devices PD 182 | 28 +1 | 0.238 -0.02 | 391 -82 | 8.2 -1.3 | 98.7 +1.7 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 8.2 mm < 9.5 mm: lower excursion-limited SPL | + |
| RCF LF18X400 | 28 +1 | 0.27 +0.02 | 340 -133 | 9 -0.5 | 97.5 +0.5 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 9 mm < 9.5 mm: lower excursion-limited SPL | + |
| 18 Sound 18LW800 | 29 +2 | 0.272 +0.02 | 448 -25 | 8 -1.5 | 99.8 +2.8 | usable | 8 Ω vs 16 Ω: amp load changes · Xmax 8 mm < 9.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the PD184 →
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.