Kicker S15L7

18" · 8 Ω · 500 W · 89.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	26.3 Hz
Qts	0.539
Qes	0.565
Qms	11.868
Vas	149.1 L
Sd	1156 cm²
Xmax	7.3 mm
Re	7 Ω
Bl	30.7 T·m
Mms	460.3 g
Pe	500 W
Sensitivity	89.4 dB

Alignment hint

EBP	47 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 206.8 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
Skar Audio ZVX-18V2 D2	26.1 -0.2	0.472 -0.07	151.6 +2.5	12.1 +4.8	98.2 +8.8	usable	2 Ω vs 8 Ω: amp load changes	+
Dayton Audio UM18-22 v2015	19.5 -6.8	0.533 -0.01	212 +62.9	12.6 +5.3	88.6 -0.8	usable		+
Dayton Audio PA465S-8	32.3 +6	0.569 +0.03	193 +43.9	9.9 +2.6	93.9 +4.5	usable		+
P.Audio GST-181200	35 +8.7	0.54 =	180.2 +31.1	6 -1.3	93.2 +3.8	usable	Xmax 6 mm < 7.3 mm: lower excursion-limited SPL	+
JBL 2268H vp	26.9 +0.6	0.462 -0.08	202.2 +53.1	8 +0.7	95.4 +6	usable	4 Ω vs 8 Ω: amp load changes	+
Dayton Audio UMII18-22 ULTIMAX II DVC	22 -4.3	0.53 -0.01	248.2 +99.1	13.8 +6.5	90.7 +1.3	usable		+
PD PD 186/2	34.2 +7.9	0.523 -0.02	192.2 +43.1	8.7 +1.4	94.5 +5.1	usable		+
Precision Devices PD 186/2	34.2 +7.9	0.523 -0.02	192.2 +43.1	8.7 +1.4	94.5 +5.1	usable		+
Selenium TORNADO 18SW3A	41 +14.7	0.55 +0.01	126.3 -22.8	7.8 +0.5	93.7 +4.3	usable	4 Ω vs 8 Ω: amp load changes	+
Dayton Audio UM18-22 18	19.5 -6.8	0.487 -0.05	216.8 +67.7	12.2 +4.9	89 -0.4	usable		+

Compare the closest 3 against the S15L7 →

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.