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Black 12 inch car subwoofer with woven glass fiber cone, rubber surround and cast aluminum basket

PowerBass

PowerBass 2XL-1240D 12" Dual 4-Ohm Car Subwoofer

SKU CH-QSGT-K0JP0

A compact 12-inch dual 4-ohm subwoofer with a 132 oz motor and 900 W RMS handling built for small sealed enclosures

  • TypeSubwoofers
  • Deep bass extension from 30 Hz low-frequency response
  • High power handling with 900 watts RMS per pair
  • Dual 4-ohm coils enable flexible wiring options
  • Compact 5.4 inch mounting depth fits tight spaces
  • Large 132 oz motor structure drives strong output

Compact 12-Inch Dual 4-Ohm Subwoofer

The PowerBass 2XL-1240D is a 12-inch car subwoofer built for compact sealed enclosures. Its dual 4-ohm voice coils provide wiring flexibility for mono or stereo amplifier setups. A woven glass fibre and kraft paper cone with an NBR surround handles 900 watts RMS per pair. The cast aluminium basket uses a 132 oz double-stacked motor structure for strong motor force.

Installers Needing Shallow Mounting Depth

This unit suits builders who need a 5.4-inch mounting depth and an 11.0-inch cutout diameter. The vented 2.5-inch voice coil former and perimeter aero-vent cooling help manage thermal compression during extended play. Buyers who require a ported enclosure alignment or higher sensitivity than 87.08 dB should evaluate alternative designs.

Factory-Fitted Cooling and Terminal Features

The subwoofer ships with perimeter aero-vent voice coil cooling vents and square spring-loaded nickel-plated input terminals already installed. A new PBX logo dust cap covers the motor structure. These integrated items reduce the need for separate cooling accessories and simplify amplifier connection in tight enclosure spaces.

Highlights

  • Deep bass extension from 30 Hz low-frequency response
  • High power handling with 900 watts RMS per pair
  • Dual 4-ohm coils enable flexible wiring options
  • Compact 5.4 inch mounting depth fits tight spaces
  • Large 132 oz motor structure drives strong output

Specifications

BrandPowerBass
TypeSubwoofers

Questions about this item

What amplifier impedance load does the dual 4-ohm voice coil require?

Wire the coils in parallel for a 2-ohm load or in series for an 8-ohm load; the amplifier must be stable at the chosen impedance and deliver up to 900 W RMS per pair.

Will the 5.4 in mounting depth fit behind my factory rear deck?

The subwoofer needs 5.4 in of clear depth plus grille clearance; measure the cavity behind the deck to confirm it exceeds that figure.

How can I verify the subwoofer is performing correctly after installation?

Play a 30 Hz test tone and check for clean cone excursion up to 11.5 mm Xmax without mechanical noise; the output should remain composed through the 400 Hz upper limit.

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