Dayton Audio DCS305-4

12" · 4 Ω · 250 W · 91 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	22.9 Hz
Qts	0.408
Qes	0.44
Qms	5.59
Vas	116.6 L
Sd	498.8 cm²
Xmax	9.3 mm
Re	3.2 Ω
Bl	12.3 T·m
Mms	144.5 g
Pe	250 W
Sensitivity	91 dB

Alignment hint

EBP	52 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 58.2 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Dayton Audio DSC305-4	23 +0.1	0.408 =	116 -0.6	9.3 =	91 =	close		+
Eminence LAB 12	22 -0.9	0.379 -0.03	125.2 +8.6	11 +1.7	90 -1	close	8 Ω vs 4 Ω: amp load changes	+
Ground Zero GZTW 30	25 +2.1	0.44 +0.03	110 -6.6	11.2 +1.9	90.7 -0.3	close		+
Mivoc XAW 320 HC	22.6 -0.3	0.374 -0.03	106 -10.6	8.4 -0.9	90.7 -0.3	close	Xmax 8.4 mm < 9.3 mm: lower excursion-limited SPL	+
Focal SUB12	24 +1.1	0.407 =	90 -26.6	9.8 +0.5	90.7 -0.3	close		+
Ground Zero GZTW 30T	25 +2.1	0.443 +0.04	110 -6.6	11.9 +2.6	90.7 -0.3	close		+
JL Audio 13W6V2-D4	24.3 +1.4	0.434 +0.03	111.6 -5	10.6 +1.3	88.3 -2.7	close	8 Ω vs 4 Ω: amp load changes	+
Eminence LAB 12 \|	22 -0.9	0.38 -0.03	125.2 +8.6	13 +3.7	89.2 -1.8	close	6 Ω vs 4 Ω: amp load changes	+
Pioneer TS-W12PRS	24 +1.1	0.392 -0.02	93 -23.6	10.3 +1	90.4 -0.6	close		+
JL Audio 12W1V2-4	23.68 +0.78	0.414 +0.01	105.876 -10.72	9.5 +0.2	86.9 -4.1	close		+

Compare the closest 3 against the DCS305-4 →

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.