Morel Ultimo Titanium 802 (SVC 2 ohm)

8″ subwoofer · 2 Ω

Fs 39 HzQts 0.61Vas 0.60 ft³

Recommended box

For a sedan, one sub, 300 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 volume0.85 ft³ (24 L)
Qtc0.80
Fc51 Hz
F3 (−3 dB, no cabin gain)47 Hz
Example box (outside)10 5/8″ × 10 5/8″ × 19 3/8″
Open sealed box in designer

Ported

Net volume1.52 ft³ (43 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 34 7/8″ long
Port velocity at 300 W49 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs39 Hz
Qts0.61
Qes0.73
Qms3.88
Vas0.60 ft³
Re≈ 1.7 Ω
Sd39.4 in²
Xmax≈ 0.39″
Mms90 g calc.
BL7.1 T·m calc.
EBP53 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.4 dB calc.

General

Size8″
Voice coils2 Ω
RMS power—

Mounting dimensions

Ø≈ 8 1/2″cutout ≈ Ø7 5/16″mounting depth ≈ 3 15/16″magnet Ø≈ 4 3/4″
Cutout diameter≈ 7 5/16″
Mounting depth≈ 3 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 Morel 8″ models