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Pyle Audio PDW21250

21.5" · 8 Ω · 1000 W · 96.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size21.5"
Impedance8 Ω
Fs22.4 Hz
Qts0.331
Qes0.38
Qms2.596
Vas703.8 L
Sd1706 cm²
Xmax9 mm
Re6.3 Ω
Bl26.1 T·m
Mms292.6 g
Pe1000 W
Sensitivity96.2 dB

Alignment hint

EBP59 · 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Beyma 21L4525 +2.60.275 -0.06660 -43.89 =98.7 +2.5usable+
MCM Electronics 55-298525.9 +3.50.38 +0.05705 +1.26.9 -2.197.6 +1.4usable300 W vs 1000 W: lower power handling · Xmax 6.9 mm < 9 mm: lower excursion-limited SPL+
hertz Hertz Audio ML5400D20.7 -1.70.303 -0.03613 -90.88.5 -0.5102.9 +6.7usable2 Ω vs 8 Ω: amp load changes · Xmax 8.5 mm < 9 mm: lower excursion-limited SPL+
Mach 5 Audio FTW2119.7 -2.70.378 +0.05499.9 -203.97.5 -1.595.8 -0.4usable4 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 Audio16.3 -6.10.389 +0.06605 -98.816.3 +7.393 -3.2usable4 Ω vs 8 Ω: amp load changes+
Beyma 21PW1400FE30 +7.60.343 +0.01401.5 -302.310 +198.6 +2.4usable+
RCF LF 21X45128 +5.60.369 +0.04385 -318.813 +497 +0.8usable+
Cabasse 55NDS23.5 +1.10.369 +0.04975 +271.24.2 -4.898.7 +2.5usable200 W vs 1000 W: lower power handling · Xmax 4.2 mm < 9 mm: lower excursion-limited SPL+
18 Sound 21NLW900029 +6.60.347 +0.02304 -399.810.7 +1.796.4 +0.2usable+
RCF 21LNW900029 +6.60.347 +0.02304 -399.810.7 +1.796.4 +0.2usable+

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.