AMPIRE FLAT10

10″ subwoofer · 4 Ω · 300 W RMS

Fs 37.9 HzQts 0.55Vas 0.82 ft³Xmax 0.39″

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 volume0.74 ft³ (21 L)
Qtc0.80
Fc55 Hz
F3 (−3 dB, no cabin gain)52 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 13 3/8″
Open sealed box in designer

Ported

Net volume2.08 ft³ (59 L)
Tuning (Fb)31 Hz
Portslot 1 9/16 × 14 5/16″, 26 3/16″ long
Port velocity at 300 W59 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 15/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37.9 Hz
Qts0.55
Qes0.63
Qms4.27
Vas0.82 ft³
Re3.6 Ω
Sd53.8 in²
Xmax0.39″
Vd21.2 in³ calc.
Mms129 g calc.
BL13.3 T·m calc.
EBP60 — sealed or ported calc.
Sensitivity, 1 W / 1 m85 dB calc.

General

Size10″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø10 5/16″cutout Ø9 1/8″mounting depth 3 3/8″magnet Ø≈ 5 15/16″
Cutout diameter9 1/8″
Mounting depth3 3/8″
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