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Westra SW-300-2808

12" · 8 Ω · 250 W · 94.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs30 Hz
Qts0.322
Qes0.36
Qms3.03
Vas209 L
Sd531 cm²
Xmax9.3 mm
Re6.7 Ω
Bl13.7 T·m
Mms53.2 g
Pe250 W
Sensitivity94.7 dB

Alignment hint

EBP83 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 54.7 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
Visaton TD130.3 +0.30.327 +0.01200 -97.6 -1.795.3 +0.6close150 W vs 250 W: lower power handling · Xmax 7.6 mm < 9.3 mm: lower excursion-limited SPL+
Visaton WS33NG30 =0.308 -0.01190 -198 -1.394.5 -0.2closeXmax 8 mm < 9.3 mm: lower excursion-limited SPL+
Rockford Fosgate S1-12428 -20.326 =186 -239.9 +0.696.2 +1.5close4 Ω vs 8 Ω: amp load changes+
Visaton TD31 +10.324 =200 -97.3 -295.5 +0.8close150 W vs 250 W: lower power handling · Xmax 7.3 mm < 9.3 mm: lower excursion-limited SPL+
Cabasse 30M2231.5 +1.50.315 -0.01196.1 -12.98 -1.397.7 +3closeXmax 8 mm < 9.3 mm: lower excursion-limited SPL+
Jensen RS12045SW25 -50.3 -0.02220 +1111 +1.795.6 +0.9close4 Ω vs 8 Ω: amp load changes+
Focal 12V 726DB25.9 -4.10.354 +0.03210.5 +1.58.5 -0.896 +1.3close4 Ω vs 8 Ω: amp load changes · 150 W vs 250 W: lower power handling · Xmax 8.5 mm < 9.3 mm: lower excursion-limited SPL+
Samy Speaker LW120030.7 +0.70.36 +0.04210 +16 -3.394.3 -0.4usable100 W vs 250 W: lower power handling · Xmax 6 mm < 9.3 mm: lower excursion-limited SPL+
Audiotechnology FLEXUNIT 12B77251025 -50.299 -0.02250 +418.6 -0.794.3 -0.4usableXmax 8.6 mm < 9.3 mm: lower excursion-limited SPL+
Philips AD12240/W829 -10.392 +0.07215.7 +6.77.4 -1.993.6 -1.1usable100 W vs 250 W: lower power handling · Xmax 7.4 mm < 9.3 mm: lower excursion-limited SPL+

Compare the closest 3 against the SW-300-2808 →

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.