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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

  • Product 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.

How it compares

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

Price $196.99
Typical for this category: the median of 268 items is $185.49.

Specifications

Product
Brand namePowerBass
Product 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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