Pioneer TS-W305C (prodance)

12" · 4 Ω · 400 W · 94.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	34 Hz
Qts	0.311
Qes	0.32
Qms	11.46
Vas	54 L
Sd	452.4 cm²
Xmax	6.8 mm
Re	2.97 Ω
Bl	15.2 T·m
Mms	116.3 g
Pe	400 W
Sensitivity	94.5 dB

Alignment hint

EBP	106 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 13 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
B&C 12 FG 100 4 Ohms	34 =	0.32 +0.01	53 -1	9.2 +2.4	94.3 -0.2	close		+
Pioneer TS-W305C	32.7 -1.3	0.34 +0.03	51.5 -2.5	7.1 +0.3	93.4 -1.1	close		+
Focal 33VX	34 =	0.322 +0.01	66.5 +12.5	6.4 -0.4	94.7 +0.2	close	Xmax 6.4 mm < 6.8 mm: lower excursion-limited SPL	+
B&C 12FG100	34 =	0.32 +0.01	53 -1	10.3 +3.5	91 -3.5	close		+
Sica 12 PNS 4	41.7 +7.7	0.31 =	50.2 -3.8	9.5 +2.7	94.5 =	close	8 Ω vs 4 Ω: amp load changes	+
Ground Zero GZRW 30SPL vp	33.3 -0.7	0.357 +0.05	52 -2	9.1 +2.3	92 -2.5	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 4021	35.4 +1.4	0.367 +0.06	55.2 +1.2	6.5 -0.3	91.6 -2.9	usable	8 Ω vs 4 Ω: amp load changes · Xmax 6.5 mm < 6.8 mm: lower excursion-limited SPL	+
Sica 12 PFS 4	39 +5	0.26 -0.05	55.6 +1.6	9 +2.2	94.8 +0.3	usable	8 Ω vs 4 Ω: amp load changes	+
18 Sound 12LW1400	45 +11	0.3 -0.01	55 +1	8.25 +1.45	96 +1.5	usable	8 Ω vs 4 Ω: amp load changes	+
18 Sound 12NTLS3500	41 +7	0.34 +0.03	63 +9	7.9 +1.1	94.5 =	usable		+

Compare the closest 3 against the TS-W305C (prodance) →

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.