Sundown Audio Uv1-10 D4

10″ subwoofer · dual 4 Ω · 1,500 W RMS

Fs 41.1 HzQts 0.35Vas 0.41 ft³Xmax 1.18″

Recommended box

For a sedan, one sub, 1,500 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 volume0.49 ft³ (14 L)
Qtc0.47
Fc55 Hz
F3 (−3 dB, no cabin gain)96 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 9 11/16″
Open sealed box in designer

Ported

Net volume1.02 ft³ (29 L)
Tuning (Fb)31 Hz
Portround port Ø3″, 16 15/16″ long
Port velocity at 1,500 W311 ft/s
F3 (−3 dB, no cabin gain)73 Hz
Example box (outside)19 5/16″ × 15 3/4″ × 9 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs41.1 Hz
Qts0.35
Qes0.39
Qms3.21
Vas0.41 ft³
Re (one coil)3.05 Ω
Sd53.5 in²
Xmax1.18″
Vd63.1 in³ calc.
Mms220 g calc.
BL21.1 T·m calc.
EBP105 — suits ported calc.
Sensitivity, 1 W / 1 m85.1 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power1,500 W

Mounting dimensions

Ø10 15/16″cutout Ø9 3/16″mounting depth 7″magnet Ø≈ 5 15/16″
Cutout diameter9 3/16″
Mounting depth7″
Overall diameter10 15/16″

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