Hertz Cento CS 250 S2 (SVC 2 ohm)

10″ subwoofer · 2 Ω · 300 W RMS

Fs 30 HzQts 0.49Vas 1.13 ft³Xmax 0.49″

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 volume0.71 ft³ (20 L)
Qtc0.79
Fc48 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 12 7/8″
Open sealed box in designer

Ported

Net volume2.19 ft³ (62 L)
Tuning (Fb)27 Hz
Portslot 1 9/16 × 14 5/16″, 33 7/8″ long
Port velocity at 300 W57 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 15/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.49
Qes0.52
Qms9.4
Vas1.13 ft³
Re2.2 Ω
Sd56.8 in²
Xmax0.49″
Vd27.9 in³ calc.
Mms167 g calc.
BL11.5 T·m calc.
EBP58 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.2 dB calc.

General

Size10″
Voice coils2 Ω
RMS power300 W

Mounting dimensions

Ø10 5/8″cutout Ø9 1/8″mounting depth 4 1/2″magnet Ø4 3/4″
Cutout diameter9 1/8″
Mounting depth4 1/2″
Overall diameter10 5/8″
Magnet diameter4 3/4″

“≈” 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 Hertz 10″ models