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Dayton Audio PSS545HE-4 VORTEX

21.5" · 4 Ω · 2000 W · 97.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size21.5"
Impedance4 Ω
Fs28.8 Hz
Qts0.27
Qes0.28
Qms7.28
Vas212.1 L
Sd1590 cm²
Xmax8.6 mm
Re3.8 Ω
Bl35.4 T·m
Mms510.3 g
Pe2000 W
Sensitivity97.8 dB

Alignment hint

EBP103 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 36.2 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Eminence NSW6021-629 +0.20.304 +0.03224.6 +12.510.3 +1.797.7 -0.1close+
B&C 21 SW 15029 +0.20.261 -0.01254 +41.97.5 -1.199.4 +1.6close1500 W vs 2000 W: lower power handling · Xmax 7.5 mm < 8.6 mm: lower excursion-limited SPL+
Ciare NDK 21-428.5 -0.30.322 +0.05232.4 +20.38 -0.697.4 -0.4close1500 W vs 2000 W: lower power handling · Xmax 8 mm < 8.6 mm: lower excursion-limited SPL+
Dayton Audio HTS545HE-4 KRAKEN26.3 -2.50.28 +0.01179 -33.18.8 +0.295.7 -2.1close+
B&C 21 SW 15232 +3.20.297 +0.03198.2 -13.97.5 -1.198.9 +1.1closeXmax 7.5 mm < 8.6 mm: lower excursion-limited SPL+
Beyma 21QLEX1600/Fe30 +1.20.281 +0.01309 +96.98.4 -0.298.1 +0.3usable8 Ω vs 4 Ω: amp load changes · Xmax 8.4 mm < 8.6 mm: lower excursion-limited SPL+
18 Sound 21NLW9000C29 +0.20.248 -0.02257 +44.98.1 -0.5100.5 +2.7usableXmax 8.1 mm < 8.6 mm: lower excursion-limited SPL+
B&C 21 SW 152 v201332 +3.20.297 +0.03200 -12.17.5 -1.199.5 +1.7usableXmax 7.5 mm < 8.6 mm: lower excursion-limited SPL+
B&C 21 DS 11530 +1.20.234 -0.04269 +56.97.6 -198.7 +0.9usable8 Ω vs 4 Ω: amp load changes · Xmax 7.6 mm < 8.6 mm: lower excursion-limited SPL+
LaVoce SAN214.50LD vp30 +1.20.223 -0.05250 +37.97.2 -1.498.4 +0.6usable8 Ω vs 4 Ω: amp load changes · Xmax 7.2 mm < 8.6 mm: lower excursion-limited SPL+

Compare the closest 3 against the PSS545HE-4 VORTEX →

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.