Pyle Audio PDW21250
Thiele-Small parameters
| Nominal size | 21.5" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22.4 Hz |
| Qts | 0.331 |
| Qes | 0.38 |
| Qms | 2.596 |
| Vas | 703.8 L |
| Sd | 1706 cm² |
| Xmax | 9 mm |
| Re | 6.3 Ω |
| Bl | 26.1 T·m |
| Mms | 292.6 g |
| Pe | 1000 W |
| Sensitivity | 96.2 dB |
Alignment hint
| EBP | 59 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 197.5 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 21L45 | 25 +2.6 | 0.275 -0.06 | 660 -43.8 | 9 = | 98.7 +2.5 | usable | + | |
| MCM Electronics 55-2985 | 25.9 +3.5 | 0.38 +0.05 | 705 +1.2 | 6.9 -2.1 | 97.6 +1.4 | usable | 300 W vs 1000 W: lower power handling · Xmax 6.9 mm < 9 mm: lower excursion-limited SPL | + |
| hertz Hertz Audio ML5400D | 20.7 -1.7 | 0.303 -0.03 | 613 -90.8 | 8.5 -0.5 | 102.9 +6.7 | usable | 2 Ω vs 8 Ω: amp load changes · Xmax 8.5 mm < 9 mm: lower excursion-limited SPL | + |
| Mach 5 Audio FTW21 | 19.7 -2.7 | 0.378 +0.05 | 499.9 -203.9 | 7.5 -1.5 | 95.8 -0.4 | usable | 4 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling · Xmax 7.5 mm < 9 mm: lower excursion-limited SPL | + |
| CSS Audio Maelstrom 21 DVC by Exodus Audio | 16.3 -6.1 | 0.389 +0.06 | 605 -98.8 | 16.3 +7.3 | 93 -3.2 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Beyma 21PW1400FE | 30 +7.6 | 0.343 +0.01 | 401.5 -302.3 | 10 +1 | 98.6 +2.4 | usable | + | |
| RCF LF 21X451 | 28 +5.6 | 0.369 +0.04 | 385 -318.8 | 13 +4 | 97 +0.8 | usable | + | |
| Cabasse 55NDS | 23.5 +1.1 | 0.369 +0.04 | 975 +271.2 | 4.2 -4.8 | 98.7 +2.5 | usable | 200 W vs 1000 W: lower power handling · Xmax 4.2 mm < 9 mm: lower excursion-limited SPL | + |
| 18 Sound 21NLW9000 | 29 +6.6 | 0.347 +0.02 | 304 -399.8 | 10.7 +1.7 | 96.4 +0.2 | usable | + | |
| RCF 21LNW9000 | 29 +6.6 | 0.347 +0.02 | 304 -399.8 | 10.7 +1.7 | 96.4 +0.2 | usable | + |
Compare the closest 3 against the PDW21250 →
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.