Kenwood KFC-WPS1200F

12" · 4 Ω · 350 W · 91 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	24.8 Hz
Qts	0.544
Qes	0.67
Qms	2.897
Vas	62.685 L
Sd	490 cm²
Xmax	8.5 mm
Re	3.21 Ω
Bl	12.93 T·m
Mms	224 g
Pe	350 W
Sensitivity	91 dB

Alignment hint

EBP	37 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 90.9 L

EBP < 50: favours a sealed (closed) 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
JL Audio 13TW5V2-2	27.6 +2.8	0.526 -0.02	60.3 -2.39	9 +0.5	89.2 -1.8	close		+
Boston Acoustics G21244	28 +3.2	0.579 +0.03	65 +2.31	8.2 -0.3	92.4 +1.4	close	2 Ω vs 4 Ω: amp load changes · Xmax 8.2 mm < 8.5 mm: lower excursion-limited SPL	+
Wavecor SW310WA02	27.5 +2.7	0.52 -0.02	64.5 +1.81	7.4 -1.1	89.9 -1.1	close	250 W vs 350 W: lower power handling · Xmax 7.4 mm < 8.5 mm: lower excursion-limited SPL	+
MTX Audio RT12-04	28 +3.2	0.535 -0.01	68 +5.31	7.5 -1	90.1 -0.9	close	250 W vs 350 W: lower power handling · Xmax 7.5 mm < 8.5 mm: lower excursion-limited SPL	+
Dayton Audio TIT320C-4 Titanic Mk III	24.9 +0.1	0.458 -0.09	64.3 +1.61	10.5 +2	89.2 -1.8	close		+
Kenwood KFC-XW1200F	24.8 =	0.544 =	62.69 =	8.5 =	83.4 -7.6	close		+
JL Audio 12W7AE-3	27.2 +2.4	0.482 -0.06	66 +3.31	13.7 +5.2	91.2 +0.2	close		+
Rockford Fosgate P3D2-12	26.5 +1.7	0.491 -0.05	57.7 -4.98	9.5 +1	89 -2	close		+
Oxygen AIR2 300	26.7 +1.9	0.452 -0.09	62.9 +0.21	8.8 +0.3	89.5 -1.5	close		+
Rockford Fosgate T1D212	28 +3.2	0.522 -0.02	55.8 -6.89	10.9 +2.4	89.1 -1.9	close		+

Compare the closest 3 against the KFC-WPS1200F →

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.