AMPIRE VLEX10.4

10″ subwoofer · 4 Ω · 250 W RMS

Fs 39.5 HzQts 0.37Vas 0.92 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 250 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)
Qtc0.63
Fc67 Hz
F3 (−3 dB, no cabin gain)80 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)40 Hz
Port2 round ports Ø3″, 20 3/4″ long
Port velocity at 250 W66 ft/s
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)27 5/16″ × 15 3/4″ × 7 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs39.5 Hz
Qts0.37
Qes0.41
Qms3.95
Vas0.92 ft³
Re3.3 Ω
Sd52.7 in²
Xmax0.55″
Vd29 in³ calc.
Mms103 g calc.
BL14.3 T·m calc.
EBP96 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.9 dB calc.

General

Size10″
Voice coils4 Ω
RMS power250 W

Mounting dimensions

Ø10 5/16″cutout Ø9 1/8″mounting depth 4 15/16″magnet Ø≈ 5 15/16″
Cutout diameter9 1/8″
Mounting depth4 15/16″
Overall diameter10 5/16″

“≈” 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 AMPIRE 10″ models