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Dayton Audio ST305-8 Séries II

12" · 8 Ω · 275 W · 92.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs26.2 Hz
Qts0.334
Qes0.35
Qms7.5
Vas164 L
Sd506.7 cm²
Xmax8 mm
Re6.2 Ω
Bl15.4 T·m
Mms81 g
Pe275 W
Sensitivity92.3 dB

Alignment hint

EBP75 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 47.1 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
Monacor SPH-300KE vp126.5 +0.30.357 +0.02175 +116.5 -1.592.3 =close120 W vs 275 W: lower power handling · Xmax 6.5 mm < 8 mm: lower excursion-limited SPL+
STX W.32.500.8.MC25 -1.20.299 -0.04155 -97.5 -0.592.1 -0.2closeXmax 7.5 mm < 8 mm: lower excursion-limited SPL+
Eton 12-680-62 HEX26 -0.20.343 +0.01150 -146 -291.6 -0.7close200 W vs 275 W: lower power handling · Xmax 6 mm < 8 mm: lower excursion-limited SPL+
Eton 12-212/C8/62 HEX SYMPHONY II24 -2.20.31 -0.02176 +128.5 +0.590.7 -1.6close200 W vs 275 W: lower power handling+
Visaton TIW30025 -1.20.282 -0.05160 -49.7 +1.792.9 +0.6close+
STX W.STX.12.2.500.4.F.S.MC25 -1.20.31 -0.02151 -137.5 -0.594.3 +2close4 Ω vs 8 Ω: amp load changes · Xmax 7.5 mm < 8 mm: lower excursion-limited SPL+
Dayton Audio SD315A-8824.2 -20.335 =151.7 -12.36.4 -1.693.7 +1.4close4 Ω vs 8 Ω: amp load changes · 120 W vs 275 W: lower power handling · Xmax 6.4 mm < 8 mm: lower excursion-limited SPL+
Dali A-12WD vp27 +0.80.328 -0.01121 -438.8 +0.893.3 +1close+
Dayton Audio 12 DVC25 -1.20.347 +0.01147.3 -16.715.5 +7.594 +1.7close4 Ω vs 8 Ω: amp load changes+
Eton 12-612/C8/62 RP30 +3.80.32 -0.01134 -308.5 +0.592.1 -0.2close150 W vs 275 W: lower power handling+

Compare the closest 3 against the ST305-8 S&eacute;ries II →

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.