Pioneer TS-W305C

12" · 4 Ω · 400 W · 93.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	32.7 Hz
Qts	0.34
Qes	0.348
Qms	15.095
Vas	51.5 L
Sd	460 cm²
Xmax	7.1 mm
Re	3 Ω
Bl	15.6 T·m
Mms	136.6 g
Pe	400 W
Sensitivity	93.4 dB

Alignment hint

EBP	94 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 15.5 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
Ground Zero GZRW 30SPL vp	33.3 +0.6	0.357 +0.02	52 +0.5	9.1 +2	92 -1.4	close	8 Ω vs 4 Ω: amp load changes	+
B&C 12 FG 100 4 Ohms	34 +1.3	0.32 -0.02	53 +1.5	9.2 +2.1	94.3 +0.9	close		+
Pioneer TS-W305C (prodance)	34 +1.3	0.311 -0.03	54 +2.5	6.8 -0.3	94.5 +1.1	close	Xmax 6.8 mm < 7.1 mm: lower excursion-limited SPL	+
B&C 12FG100	34 +1.3	0.32 -0.02	53 +1.5	10.3 +3.2	91 -2.4	close		+
B&C 12 FG 100	34 +1.3	0.362 +0.02	49 -2.5	9.5 +2.4	91 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
B&C 12FG100	34 +1.3	0.36 +0.02	49 -2.5	10.3 +3.2	91 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
Pioneer TS-W306C	32.6 -0.1	0.414 +0.07	55.6 +4.1	8.1 +1	92.8 -0.6	close		+
Focal 33WX	32.5 -0.2	0.349 +0.01	73.1 +21.6	7.1 =	94.2 +0.8	close		+
Focal 33WX2	32.5 -0.2	0.349 +0.01	73.1 +21.6	7.1 =	94.2 +0.8	close		+
PHL Audio 4021	35.4 +2.7	0.367 +0.03	55.2 +3.7	6.5 -0.6	91.6 -1.8	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.5 mm < 7.1 mm: lower excursion-limited SPL	+

Compare the closest 3 against the TS-W305C →

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.