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Dayton Audio HTS545HE-4 KRAKEN

21.5" · 4 Ω · 2000 W · 95.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size21.5"
Impedance4 Ω
Fs26.3 Hz
Qts0.28
Qes0.29
Qms7.9
Vas179 L
Sd1525 cm²
Xmax8.8 mm
Re3.8 Ω
Bl38 T·m
Mms667.1 g
Pe2000 W
Sensitivity95.7 dB

Alignment hint

EBP91 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 33.3 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Dayton Audio PSS545HE-4 VORTEX28.8 +2.50.27 -0.01212.1 +33.18.6 -0.297.8 +2.1closeXmax 8.6 mm < 8.8 mm: lower excursion-limited SPL+
Eminence NSW6021-629 +2.70.304 +0.02224.6 +45.610.3 +1.597.7 +2usable+
B&C 21 SW 15232 +5.70.297 +0.02198.2 +19.27.5 -1.398.9 +3.2usableXmax 7.5 mm < 8.8 mm: lower excursion-limited SPL+
Ciare NDK 21-428.5 +2.20.322 +0.04232.4 +53.48 -0.897.4 +1.7usable1500 W vs 2000 W: lower power handling · Xmax 8 mm < 8.8 mm: lower excursion-limited SPL+
B&C 21 SW 152 v201332 +5.70.297 +0.02200 +217.5 -1.399.5 +3.8usableXmax 7.5 mm < 8.8 mm: lower excursion-limited SPL+
Beyma 21QLEX1600/Fe30 +3.70.281 =309 +1308.4 -0.498.1 +2.4usable8 Ω vs 4 Ω: amp load changes · Xmax 8.4 mm < 8.8 mm: lower excursion-limited SPL+
B&C 21 SW 15029 +2.70.261 -0.02254 +757.5 -1.399.4 +3.7usable1500 W vs 2000 W: lower power handling · Xmax 7.5 mm < 8.8 mm: lower excursion-limited SPL+
RCF LF 21N55135 +8.70.331 +0.05200 +217.7 -1.197.7 +2usable8 Ω vs 4 Ω: amp load changes · Xmax 7.7 mm < 8.8 mm: lower excursion-limited SPL+
18 Sound 21NLW9000C29 +2.70.248 -0.03257 +788.1 -0.7100.5 +4.8usableXmax 8.1 mm < 8.8 mm: lower excursion-limited SPL+
18 Sound 21NLW900029 +2.70.347 +0.07304 +12510.7 +1.996.4 +0.7usable8 Ω vs 4 Ω: amp load changes+

Compare the closest 3 against the HTS545HE-4 KRAKEN →

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.