URAL Symphony 10 (2+2)

10″ subwoofer · dual 2 Ω · 600 W RMS

Fs 36.8 HzQts 0.46Vas 0.50 ft³Xmax 0.91″

Recommended box

For a sedan, one sub, 600 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)
Qtc0.66
Fc52 Hz
F3 (−3 dB, no cabin gain)59 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 9 1/8″
Open sealed box in designer

Ported

Net volume1.02 ft³ (29 L)
Tuning (Fb)32 Hz
Portround port Ø2 1/2″, 10 7/8″ long
Port velocity at 600 W271 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)21 3/16″ × 15 3/4″ × 8 1/4″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36.8 Hz
Qts0.46
Qes0.5
Qms6.48
Vas0.50 ft³
Re (one coil)≈ 1.7 Ω
Sd53.3 in²
Xmax0.91″
Vd48.2 in³ calc.
Mms219 g calc.
BL13.1 T·m calc.
EBP74 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.5 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø10 3/8″cutout Ø9 7/16″mounting depth 5 3/4″magnet Ø7 1/16″
Cutout diameter9 7/16″
Mounting depth5 3/4″
Overall diameter10 3/8″
Magnet diameter7 1/16″

Cone area (Sd) calculated from Fs, Vas and Mms: 53.3 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 URAL 10″ models