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Kicker 8-inch down-firing subwoofer enclosure with mono amplifier

KICKER

KICKER Comp RT 8" 48TRTP82 Enclosure + 46CXA4001 Amp

SKU CH-N5AP-WHFPK

An 8-inch thin down-firing subwoofer enclosure with passive radiator paired with a 400-watt mono Class D amplifier for deep bass in tight spaces

  • Product typeSubwoofers
  • 400-watt Class D mono amp drives deep, controlled bass
  • 8-inch thin down-firing enclosure with passive radiator saves cargo space
  • 2-ohm impedance matches amp output for maximum power transfer
  • 300-watt RMS handling delivers hard-hitting low-frequency impact
  • Forced-air cooling and internal bracing ensure reliable long-term performance

Bundle contents

This package pairs a KICKER 46CXA4001 mono Class-D amplifier with a 48TRTP82 thin down-firing enclosure. The amp delivers 400 watts into a single channel, while the box houses an 8-inch active woofer plus a ReFLEX passive radiator tuned to a 2-ohm load.

Power handling and output

The amplifier supplies up to 400 watts RMS, matching the enclosure's recommended 300-watt RMS rating with comfortable headroom. Variable bass boost, crossover and subsonic filter let you shape the low end, though the fixed 2-ohm impedance limits wiring options for multi-sub configurations.

Build and installation

The enclosure uses internal bracing and forced-air cooling to keep the driver stable during extended play. Its thin-profile, down-firing layout fits tight cargo areas or under seats, and the compact amplifier chassis simplifies mounting in confined spaces.

How it compares

Measured against everything we stock in Car Subwoofers & Enclosures, at today’s prices. Recalculated every night.

Price $366.99
Pricier than about 68% of the 268 comparable items (median $185.49).

Specifications

Product
Product typeSubwoofers

Questions about this item

Will the 46CXA4001 amplifier drive my existing 4-ohm subwoofer alongside the included 2-ohm enclosure?

The 46CXA4001 delivers 400 watts into a 2-ohm load; at 4 ohms its output drops, so the included 48TRTP82 enclosure is the intended match for full rated power.

How can I confirm the 48TRTP82 enclosure and 46CXA4001 amp are working correctly after installation?

With the gain set low, play a 40 Hz test tone and verify clean bass from the 8-inch woofer and passive radiator; the amp's power LED should stay solid without entering protection mode.

What cables or wiring kits must I buy separately to complete the install?

The bundle includes the 48TRTP82 enclosure with loaded woofer and passive radiator plus the 46CXA4001 amplifier; power wire, ground wire, RCA cables, remote turn-on lead and fuse holder are not included.

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