Helix K 10S-DVC2 (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 300 W RMS

Fs 34 HzQts 0.46Vas 1.20 ft³Xmax 0.24″

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 volume0.57 ft³ (16 L)
Qtc0.80
Fc60 Hz
F3 (−3 dB, no cabin gain)57 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 10 3/4″
Open sealed box in designer

Ported

Net volume1.87 ft³ (53 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 27 9/16″ long
Port velocity at 300 W55 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34 Hz
Qts0.46
Qes0.49
Qms6.37
Vas1.20 ft³
Re (one coil)1.6 Ω
Sd54.7 in²
Xmax0.24″
Vd12.9 in³ calc.
Mms114 g calc.
BL8.9 T·m calc.
EBP69 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.4 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power300 W

Mounting dimensions

Ø10 5/16″cutout Ø9″mounting depth 3 3/8″magnet Ø5 11/16″
Cutout diameter9″
Mounting depth3 3/8″
Overall diameter10 5/16″
Magnet diameter5 11/16″

“≈” 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 Helix 10″ models