Kicker Solo-Baric L7X 12" 1-Ohm DVC (49L7X121)

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

40.3 HzFs, resonance
0.49Qts
0.64 ft³Vas
1.23″Xmax
2,000 WRMS

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

smaller, tighter
0.95 ft³ (27 L)
Net volume
Qtc0.63
Fc52 Hz
F3 (−3 dB, no cabin gain)61 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 12 11/16″
Open sealed box in designer

Ported

deeper, louder
1.73 ft³ (49 L)
Net volume
Tuning (Fb)31 Hz
Portround port Ø2 1/2″, 6 3/16″ long
Port velocity at 2,000 W663 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)21 7/16″ × 15 3/4″ × 12 5/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs40.3 Hz
Qts0.49
Qes0.516
Qms8.95
Vas0.64 ft³
Re (one coil)0.91 Ω
Sd90.8 in²
Xmax1.23″
Vd111.9 in³ calc.
Mms420 g calc.
BL13.7 T·m calc.
EBP78 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.6 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power2,000 W

Mounting dimensions

≈ 12 1/4″ × ≈ 12 1/4″cutout 11 1/16″mounting depth 10 1/8″magnet Ø8 15/16″
Cutout (square, side)11 1/16″
Mounting depth10 1/8″
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 12″ models