Pioneer TSW 304 C

12" · 4 Ω · 300 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	21 Hz
Qts	0.342
Qes	0.36
Qms	6.8
Vas	146 L
Sd	485 cm²
Xmax	11 mm
Re	3 Ω
Bl	11.9 T·m
Mms	129.7 g
Pe	300 W
Sensitivity	92 dB

Alignment hint

EBP	58 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 44.6 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
Infinity KAPPA 120.1SE	22.5 +1.5	0.359 +0.02	146.5 +0.5	11.2 +0.2	92.4 +0.4	close		+
Peerless 308SWR51XXLSP (830847)	21.8 +0.8	0.357 +0.01	144.2 -1.8	10.8 -0.2	93.1 +1.1	close	220 W vs 300 W: lower power handling · Xmax 10.8 mm < 11 mm: lower excursion-limited SPL	+
Pioneer TS-W 304 C	21 =	0.307 -0.04	136 -10	11 =	92.2 +0.2	close		+
Visaton TIW360X	21 =	0.336 -0.01	140 -6	12.2 +1.2	88.8 -3.2	close	8 Ω vs 4 Ω: amp load changes	+
Peerless XXLS12-8+8	21.8 +0.8	0.357 +0.01	144.2 -1.8	9.7 -1.3	93.1 +1.1	close	175 W vs 300 W: lower power handling · Xmax 9.7 mm < 11 mm: lower excursion-limited SPL	+
Accuton AUTOSOM	19.4 -1.6	0.344 =	169 +23	12.5 +1.5	92.2 +0.2	close		+
Eminence LAB 12 C	22.9 +1.9	0.33 -0.01	128.3 -17.7	11 =	92.6 +0.6	close		+
Visaton TIW 360X	21 =	0.34 =	140 -6	12.5 +1.5	87.3 -4.7	close	8 Ω vs 4 Ω: amp load changes	+
Peerless 830952	19.1 -1.9	0.365 +0.02	159 +13	13 +2	91.5 -0.5	close		+
Adire Audio SHIVA MK II - DVC Parallèle	22 +1	0.385 +0.04	158 +12	14.1 +3.1	92.7 +0.7	close		+

Compare the closest 3 against the TSW 304 C →

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.