Kicker Solo-Baric L7X 18" 1-Ohm DVC (49L7X181)

18″ subwoofer · dual 1 Ω · 2,000 W RMS

Fs 26.9 HzQts 0.56Vas 4.45 ft³Xmax 1.23″

Recommended box

For a sedan, one sub, 2,000 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume4.20 ft³ (119 L)
Qtc0.80
Fc39 Hz
F3 (−3 dB, no cabin gain)36 Hz
Example box (outside)31 1/2″ × 20 1/2″ × 14 15/16″
Open sealed box in designer

Ported

Net volume8.44 ft³ (239 L)
Tuning (Fb)25 Hz
Portslot 4 15/16 × 19 1/16″, 39 1/2″ long
Port velocity at 2,000 W65 ft/s
F3 (−3 dB, no cabin gain)22 Hz
Example box (outside)31 1/2″ × 20 1/2″ × 34 7/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26.9 Hz
Qts0.56
Qes0.606
Qms7.02
Vas4.45 ft³
Re (one coil)0.92 Ω
Sd218 in²
Xmax1.23″
Vd268.6 in³ calc.
Mms779 g calc.
BL14.1 T·m calc.
EBP44 — suits sealed calc.
Sensitivity, 1 W / 1 m88.1 dB calc.

General

Size18″
Voice coilsdual 1 Ω
RMS power2,000 W

Mounting dimensions

≈ 17 11/16″ × ≈ 17 11/16″cutout ≈ 16 9/16″mounting depth ≈ 8 1/4″magnet Ø8 15/16″
Cutout (square, side)≈ 16 9/16″
Mounting depth≈ 8 1/4″
Magnet diameter8 15/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Kicker 18″ models