ESX SX1040 (4 Ohm)

10″ subwoofer · 4 Ω · 400 W RMS

Fs 29 HzQts 0.32Vas 1.66 ft³Xmax 0.59″

Recommended box

For a sedan, one sub, 400 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 volume0.46 ft³ (13 L)
Qtc0.69
Fc62 Hz
F3 (−3 dB, no cabin gain)68 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 9 3/16″
Open sealed box in designer

Ported

Net volume0.99 ft³ (28 L)
Tuning (Fb)36 Hz
Port2 round ports Ø2 1/2″, 18 15/16″ long
Port velocity at 400 W103 ft/s
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)25 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

Fs29 Hz
Qts0.32
Qes0.34
Qms5.3
Vas1.66 ft³
Re3.2 Ω
Sd51.5 in²
Xmax0.59″
Vd30.4 in³ calc.
Mms100 g calc.
BL13.1 T·m calc.
EBP85 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.3 dB calc.

General

Size10″
Voice coils4 Ω
RMS power400 W

Mounting dimensions

Ø10 9/16″cutout Ø9 1/8″mounting depth 4 15/16″magnet Ø≈ 5 15/16″
Cutout diameter9 1/8″
Mounting depth4 15/16″
Overall diameter10 9/16″

“≈” 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 ESX 10″ models