Triton Shiver Bass 3.6 18

18″ subwoofer · 4 Ω · 1,600 W RMS

36.6 HzFs, resonance
0.35Qts
4.98 ft³Vas
0.43″Xmax
1,600 WRMS

Recommended box

For a sedan, one sub, 1,600 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

smaller, tighter
1.77 ft³ (50 L)
Net volume
Qtc0.69
Fc72 Hz
F3 (−3 dB, no cabin gain)78 Hz
Example box (outside)19 11/16″ × 19 11/16″ × 12″
Open sealed box in designer

Ported

deeper, louder
3.74 ft³ (106 L)
Net volume
Tuning (Fb)42 Hz
Portslot 3 3/4 × 19 1/16″, 21 7/8″ long
Port velocity at 1,600 W62 ft/s
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)31 1/2″ × 20 1/2″ × 16 9/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36.6 Hz
Qts0.35
Qes0.36
Qms14.14
Vas4.98 ft³
Re3 Ω
Sd195.3 in²
Xmax0.43″
Vd84.6 in³ calc.
Mms301 g calc.
BL24 T·m calc.
EBP102 — suits ported calc.
Sensitivity, 1 W / 1 m94.9 dB calc.

General

Size18″
Voice coils4 Ω
RMS power1,600 W

Mounting dimensions

Ø≈ 17 11/16″cutout ≈ Ø16 9/16″mounting depth ≈ 8 1/4″magnet Ø8 11/16″
Cutout diameter≈ 16 9/16″
Mounting depth≈ 8 1/4″
Magnet diameter8 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 Triton 18″ models