Sundown Audio Uv2-10 D2

10″ subwoofer · dual 2 Ω · 2,000 W RMS

Fs 50 HzQts 0.47Vas 0.20 ft³Xmax 1.18″

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 volume0.65 ft³ (18.5 L)
Qtc0.54
Fc57 Hz
F3 (−3 dB, no cabin gain)81 Hz
Example box (outside)13″ × 13″ × 10 11/16″
Open sealed box in designer

Ported

Net volume1.02 ft³ (29 L)
Tuning (Fb)34 Hz
Portround port Ø2 1/2″, 9 7/16″ long
Port velocity at 2,000 W546 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)16 1/16″ × 15 3/4″ × 10 5/8″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs50 Hz
Qts0.47
Qes0.53
Qms4.41
Vas0.20 ft³
Re (one coil)1.96 Ω
Sd53.6 in²
Xmax1.18″
Vd63.3 in³ calc.
Mms304 g calc.
BL18.8 T·m calc.
EBP94 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.2 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power2,000 W

Mounting dimensions

Ø11″cutout Ø9 3/4″mounting depth 8 1/8″magnet Ø9 11/16″
Cutout diameter9 3/4″
Mounting depth8 1/8″
Overall diameter11″
Magnet diameter9 11/16″

The spec sheet's Sd of 78.5 in² is the area of a 10″ circle, not the cone's radiating area — not used.

Cone area (Sd) calculated from Fs, Vas and Mms: 53.5 in².

“≈” 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 Sundown Audio 10″ models