Kenwood KFC-W2511

10" · 4 Ω · 300 W · 85.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	60 Hz
Qts	0.84
Qes	0.931
Qms	8.6
Vas	9.38 L
Sd	350 cm²
Xmax	7 mm
Re	3.9 Ω
Bl	13.9 T·m
Mms	123 g
Pe	300 W
Sensitivity	85.2 dB

Alignment hint

EBP	64 · flexible
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Skar Audio EV-10 S4	50.9 -9.1	0.76 -0.08	14 +4.62	8.5 +1.5	85.2 =	usable	150 W vs 300 W: lower power handling	+
Skar Audio EV-10 S2	47.5 -12.5	0.69 -0.15	15.2 +5.82	8.5 +1.5	85.1 -0.1	usable	2 Ω vs 4 Ω: amp load changes · 150 W vs 300 W: lower power handling	+
Pioneer TS-SW2541D	43.5 -16.5	0.95 +0.11	8.25 -1.13	6 -1	80 -5.2	usable	Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
JL Audio 10TW1-2	41.45 -18.55	0.65 -0.19	10.31 +0.93	10.31 +3.31	82.5 -2.7	usable	2 Ω vs 4 Ω: amp load changes	+
Pioneer TS-SW2501S4	41.6 -18.4	0.93 +0.09	10.3 +0.92	3.6 -3.4	84.9 -0.3	usable	Xmax 3.6 mm < 7 mm: lower excursion-limited SPL	+
Pioneer TS-SW251	41.3 -18.7	1.09 +0.25	9.75 +0.37	6.6 -0.4	79.6 -5.6	usable	200 W vs 300 W: lower power handling · Xmax 6.6 mm < 7 mm: lower excursion-limited SPL	+
Focal 27 KX	48 -12	0.908 +0.07	14.9 +5.52	4.5 -2.5	86.7 +1.5	usable	8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 7 mm: lower excursion-limited SPL	+
JBL 1000GTI	62 +2	0.64 -0.2	19 +9.62	5.97 -1.03	86 +0.8	usable	Xmax 5.97 mm < 7 mm: lower excursion-limited SPL	+
Focal SUB25KXS	35 -25	0.812 -0.03	18 +8.62	7 =	85 -0.2	risky		+
Audiobahn AW1051T	42.7 -17.3	0.82 -0.02	19.822 +10.44	13 +6	83.9 -1.3	risky		+

Compare the closest 3 against the KFC-W2511 →

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.