Hertz Mille Legend ML 2000.3 (SVC 4 ohm)

8″ subwoofer · 4 Ω · 700 W RMS

40 HzFs, resonance
0.56Qts
0.34 ft³Vas
0.51″Xmax
700 WRMS

Recommended box

For a sedan, one sub, 700 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

smaller, tighter
0.32 ft³ (9 L)
Net volume
Qtc0.80
Fc57 Hz
F3 (−3 dB, no cabin gain)54 Hz
Example box (outside)10 5/8″ × 10 5/8″ × 8 5/8″
Open sealed box in designer

Ported

deeper, louder
0.95 ft³ (27 L)
Net volume
Tuning (Fb)31 Hz
Portround port Ø3″, 18 5/16″ long
Port velocity at 700 W199 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)24 13/16″ × 15 3/4″ × 7 1/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs40 Hz
Qts0.56
Qes0.63
Qms5
Vas0.34 ft³
Re2.7 Ω
Sd33.1 in²
Xmax0.51″
Vd17 in³ calc.
Mms108 g calc.
BL10.8 T·m calc.
EBP63 — sealed or ported calc.
Sensitivity, 1 W / 1 m81.9 dB calc.

General

Size8″
Voice coils4 Ω
RMS power700 W

Mounting dimensions

Ø8 9/16″cutout Ø7 5/16″mounting depth 4 5/8″magnet Ø3 3/4″
Cutout diameter7 5/16″
Mounting depth4 5/8″
Overall diameter8 9/16″
Magnet diameter3 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 8″ models