CT Sounds OZONE-12 D2

12″ subwoofer · dual 2 Ω · 800 W RMS

Fs 30 HzQts 0.58Vas 1.12 ft³Xmax 0.59″

Recommended box

For a sedan, one sub, 800 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 volume1.27 ft³ (36 L)
Qtc0.80
Fc41 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 16 1/16″
Open sealed box in designer

Ported

Net volume2.83 ft³ (80 L)
Tuning (Fb)25 Hz
Portslot 2 9/16 × 14 5/16″, 50 1/2″ long
Port velocity at 800 W63 ft/s
F3 (−3 dB, no cabin gain)22 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 18 7/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.58
Qes0.64
Qms6.45
Vas1.12 ft³
Re (one coil)1.98 Ω
Sd73.1 in²
Xmax0.59″
Vd43.1 in³ calc.
Mms278 g calc.
BL12.7 T·m calc.
EBP47 — suits sealed calc.
Sensitivity, 1 W / 1 m83.3 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power800 W

Mounting dimensions

Ø12 13/16″cutout Ø10 15/16″mounting depth 6 3/8″magnet Ø≈ 7 1/8″
Cutout diameter10 15/16″
Mounting depth6 3/8″
Overall diameter12 13/16″

“≈” 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 CT Sounds 12″ models