SoundQubed Extreme Double 18″ Package

The bass side of your build in one order, matched by SoundQubed so the amp and subs work together.

What you get

• 2 x SoundQubed HDX4.2 18" Car Subwoofer – Dual 1 Ohm DVC, 4,000W RMS / 8,000W Max
• SoundQubed C1-8400 Monoblock Car Amplifier – 8,400W Class D Mono Subwoofer Amp

How it matches up

D1 subs: each series = 2 ohm, subs in parallel = 1 ohm. 8,400W @ 1 ohm for 8,000W RMS

Amp wiring kit is not included. Pick the right gauge kit for your amp in Accessories. Each part ships in its own factory box and carries its own SoundQubed warranty.