Hertz Dieci DS 25.3 (SVC 4 ohm)

10″ subwoofer · 4 Ω · 150 W RMS

Fs 36 HzQts 0.92Vas 1.20 ft³Xmax 0.35″

Recommended box

For a sedan, one sub, 150 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 volume1.27 ft³ (36 L)
Qtc1.29
Fc50 Hz
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 6 3/4″
Open sealed box in designer

Ported

Net volume2.19 ft³ (62 L)
Tuning (Fb)37 Hz
Portslot 1 9/16 × 14 5/16″, 16 3/16″ long
Port velocity at 150 W38 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 9/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36 Hz
Qts0.92
Qes1.13
Qms5
Vas1.20 ft³
Re3.3 Ω
Sd56.3 in²
Xmax0.35″
Vd19.9 in³ calc.
Mms107 g calc.
BL8.4 T·m calc.
EBP32 — suits sealed calc.
Sensitivity, 1 W / 1 m83.5 dB calc.

General

Size10″
Voice coils4 Ω
RMS power150 W

Mounting dimensions

Ø10 1/8″cutout Ø9 3/16″mounting depth 4 1/8″magnet Ø3 15/16″
Cutout diameter9 3/16″
Mounting depth4 1/8″
Overall diameter10 1/8″
Magnet diameter3 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 Hertz 10″ models