Hinor 18 SW 3K

18″ subwoofer · 4 Ω · 1,500 W RMS

Fs 42.9 HzQts 0.36Vas 3.60 ft³Xmax 0.24″

Recommended box

For a sedan, one sub, 1,500 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 volume1.70 ft³ (48 L)
Qtc0.63
Fc76 Hz
F3 (−3 dB, no cabin gain)90 Hz
Example box (outside)19 11/16″ × 19 11/16″ × 11 11/16″
Open sealed box in designer

Ported

Net volume3.53 ft³ (100 L)
Tuning (Fb)45 Hz
Portslot 3 3/4 × 19 1/16″, 19 11/16″ long
Port velocity at 1,500 W63 ft/s
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)31 1/2″ × 20 1/2″ × 15 5/8″
Open ported box in designer
2030405060801001502007278849096102HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs42.9 Hz
Qts0.36
Qes0.38
Qms6.04
Vas3.60 ft³
Re3.2 Ω
Sd185.2 in²
Xmax0.24″
Vd43.8 in³ calc.
Mms273 g calc.
BL24.9 T·m calc.
EBP113 — suits ported calc.
Sensitivity, 1 W / 1 m95.3 dB calc.

General

Size18″
Voice coils4 Ω
RMS power1,500 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