Kicx Terza M10 (4+4)

10″ subwoofer · dual 4 Ω · 300 W RMS

Fs 27 HzQts 0.54Vas 1.41 ft³Xmax 0.18″

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 volume1.17 ft³ (33 L)
Qtc0.80
Fc40 Hz
F3 (−3 dB, no cabin gain)38 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 18 3/8″
Open sealed box in designer

Ported

Net volume2.15 ft³ (61 L)
Tuning (Fb)27 Hz
Portslot 1 9/16 × 14 5/16″, 34 1/2″ long
Port velocity at 300 W52 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 13/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27 Hz
Qts0.54
Qes0.6
Qms5.3
Vas1.41 ft³
Re (one coil)3.2 Ω
Sd55.2 in²
Xmax0.18″
Vd9.8 in³ calc.
Mms156 g calc.
BL11.9 T·m calc.
EBP45 — suits sealed calc.
Sensitivity, 1 W / 1 m83.2 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power300 W

Mounting dimensions

Ø10 13/16″cutout Ø9 3/8″mounting depth 5 1/2″magnet Ø6 1/8″
Cutout diameter9 3/8″
Mounting depth5 1/2″
Overall diameter10 13/16″
Magnet diameter6 1/8″

“≈” 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 Kicx 10″ models