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Black 12-inch car subwoofer with ribbed paper cone and vented steel basket

PowerBass

PowerBass PS-12 12" 4 Ohm PS Series Car Subwoofer

SKU CH-4S5A-7GAQA

12-inch car subwoofer with 250 W RMS and 500 W peak handling, 4 Ω impedance and 91 dB sensitivity

  • Cone material12 in Woofer
  • Peak wattage500 W
  • Audio sensitivity91 dB
  • Rated impedance4 Ohm
  • Product type12 in (30.5 cm)
  • 12-inch cone moves more air for deeper bass
  • 250 W RMS power handling sustains high output cleanly
  • 500 W peak capacity absorbs sudden transients without damage
  • 91 dB sensitivity produces louder sound from the same amplifier power
  • 4 Ohm single voice coil matches common amplifier channels

PowerBass PS-12 12-inch car subwoofer

The PowerBass PS-12 is a 12-inch single 4 Ohm car subwoofer designed for drivers who want deeper bass from a standard enclosure. It handles 250 watts RMS and 500 watts peak power with a sensitivity of 91 dB. The ribbed DDC-treated paper cone and two-layer roll-treated foam surround are built for consistent output. This model suits sealed or ported boxes matching the industry-standard cutout.

Thermals noise and power in daily use

The subwoofer operates on a 4 Ohm load compatible with most mono amplifiers rated for the same impedance. Its 91 dB sensitivity means it produces strong volume without demanding excessive amplifier current. The extended and vented pole motor assembly helps dissipate heat during extended listening sessions. The progressive flat spider maintains control at high excursion to limit distortion.

Build quality and mounting implications

A precision-stamped steel basket with aero venting provides structural rigidity while allowing airflow around the voice coil. The one-piece EVA closed-cell gasket seals the mounting surface against vibrations and leaks. Industry-standard cutout patterns simplify installation in existing enclosures or new builds. Buyers needing dual voice coils or a different impedance will need another model.

How it compares

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

Price $42.99
Cheaper than about 91% of the 268 comparable items (median $185.49).

Specifications

Product
Brand namePowerBass
Product linePS
Product type12 in (30.5 cm)
Audio & video
Audio sensitivity91 dB
Rated impedance4 Ohm
Power
Peak wattage500 W
Size & build
Cone material12 in Woofer

Questions about this item

How do I wire the 4-ohm voice coil to my amplifier and what is the common mistake?

Connect the single 4-ohm coil directly to a compatible amp channel; the frequent error is wiring it as if it were a dual-coil model, which changes the load and can damage the amplifier.

What part of the 12-inch woofer will need replacement after extended use?

The ribbed DDC-treated paper cone and 2-layer roll-treated foam surround are the wear items; the foam typically dries and cracks first, requiring a recone kit to restore performance.

At what power level does the subwoofer reach its thermal limit during long sessions?

The 250-watt RMS rating marks the continuous thermal ceiling; running above this for extended periods overheats the voice coil on the vented pole motor assembly.

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