Alpine PWE-S8-WRA 8" Compact Powered Subwoofer System | '11-'18 Jeep JKU Wranglers

Get ready to feel every beat of your adventure with the Alpine PWE-S8-WRA 8" Compact Powered Subwoofer System- the perfect upgrade for Jeep Wrangler owners who crave clean, hard-hitting bass without losing precious space.

This compact powerhouse features an 8" high-performance subwoofer and a built-in 120-watt amplifier, all neatly housed in a rugged, weather-resistant enclosure designed to thrive in the toughest off-road conditions. Engineered specifically for 2011–2018 Jeep Wranglers, it fits perfectly under the passenger seat for a stealthy, factory-style install.

With its plug-and-play design, you’ll be adding rich, dynamic low-end sound in no time! No guesswork, no bulky boxes, just pure Alpine bass precision.

Highlights:

• Compact 8" subwoofer with built-in 120W amp
• Custom-fit for 2011–2018 Jeep Wrangler (JKU)
• Rugged, weather-resistant enclosure built for the trail
• Easy plug-and-play installation
• Deep, tight bass that elevates your entire sound system

• Built-in Class D amplifier delivering 120 W RMS (240 W peak) for solid low-end punch.
• Compact “under-seat friendly” design: ~13½″ wide × 9″ tall × only ~3″ deep — ideal for tight spaces.
• 8″ high-excursion woofer with a diaphragm of polypropylene/aluminum and rubber surround — built for strong, accurate bass.
• Frequency response down to the low 20s: approximately 25 Hz to 152 Hz (or in Jeep-specific model ~32-150 Hz) — meaning it digs deep.
• Adjustable controls for customization:
  Low-pass crossover (about 50-150 Hz)
  Phase control (0°/180°)
• Included wired remote bass-level knob (easily mounted) for live adjustments.
• Built for integration into vehicles with limited space: the “WRA” version is specifically designed for 4-door Jeep Wrangler Unlimited models lacking factory subwoofer upgrade.
• Durable construction: cast metal/metal housing provides solid structural integrity and better heat-handling.

• 120 Watts bass upgrade for 2011-2018 4-door Jeep Wrangler*
• Under driver seat plug & play system for improved bass/mid-bass performance
• Works with an Alpine or aftermarket head unit, or with the factory Jeep radio
• Includes powered 8" subwoofer, remote bass knob, harnesses and mounting brackets

• Works with 2011-2018 JKU Jeep Wranglers
• Not compatible with the factory equipped subwoofer system
• Not compatible with 2-Door Jeeps

• Size: 8"
• Shipping Weight: 14lbs
• Shipping Dimensions: 18in x 11in x 6in (L x W x H)

• Powered 8-inch Subwoofer
• Remote Bass Knob
• Wrangler Specific Plug-n-Play Wiring Harness
• Wrangler Specific Underseat Mounting Bracket
• Mounting Hardware
• Amplified enclosure with one 8" subwoofer installed
• 80" Wiring harness (Power/ Ground/ Speaker level input)
• Wrangler radio T-Harness (with in-line fuseholder)
• Two 15 amp ATO fuses (one installed in the power wire fuse holder/ 1 spare)
• Remote level control with 15' cable attached (3.5mm mini-plug on the end)
• Adhesive backed hook and loop mounting fasteners (to mount the remote)
• 2 Wrangler mounting brackets
• Eight M4x10mm Machine screws (each with a flat washer and split lock washer)
• Four M6x10mm Machine screws
• Fifteen 7" Zip ties
• Installation instructions
• Owner's manual (English/ French/ Spanish)
• Warranty information
• On-line product registration information
• System installation notice