Hinor 18 SW 4K

18″ subwoofer · 4 Ω · 2,000 W RMS

Fs 46.5 HzQts 0.33Vas 2.98 ft³Xmax 0.28″

Recommended box

For a sedan, one sub, 2,000 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 volume1.73 ft³ (49 L)
Qtc0.54
Fc77 Hz
F3 (−3 dB, no cabin gain)111 Hz
Example box (outside)19 11/16″ × 19 11/16″ × 11 13/16″
Open sealed box in designer

Ported

Net volume3.64 ft³ (103 L)
Tuning (Fb)44 Hz
Portslot 4 1/2 × 19 1/16″, 25 1/16″ long
Port velocity at 2,000 W63 ft/s
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)31 1/2″ × 20 1/2″ × 17 3/8″
Open ported box in designer
2030405060801001502007278849096102HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs46.5 Hz
Qts0.33
Qes0.35
Qms5.15
Vas2.98 ft³
Re3.1 Ω
Sd189.9 in²
Xmax0.28″
Vd52.3 in³ calc.
Mms296 g calc.
BL27.7 T·m calc.
EBP133 — suits ported calc.
Sensitivity, 1 W / 1 m95.8 dB calc.

General

Size18″
Voice coils4 Ω
RMS power2,000 W

Mounting dimensions

Ø≈ 17 11/16″cutout ≈ Ø16 9/16″mounting depth ≈ 8 1/4″magnet Ø≈ 10 3/4″
Cutout diameter≈ 16 9/16″
Mounting depth≈ 8 1/4″

“≈” 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 Hinor 18″ models