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Black 12-inch car subwoofer with turbine basket and rubber surround

PowerBass

PowerBass S-12TD 12" car subwoofer 300W RMS

SKU CH-6N4Y-JBCJ2 MPN S-12TD

A 12-inch car subwoofer with dual 4-ohm voice coils, 300W RMS power handling, and a thin-mount design for shallow enclosures

  • Subwoofer size12 in (30.5 cm)
  • Cone materialSingle Piece Custom Injected Molded Cone
  • Surround materialLarge Roll Rubber Surround
  • Voice coilDual
  • Voice coil construction2 in Voice Coil
  • Magnet construction140 oz
  • Deep bass extension down to 29 Hz for powerful low-end impact
  • High 91 dB sensitivity produces loud output with less amplifier power
  • Thin 3.25" mounting depth fits tight vehicle spaces easily
  • Dual 4 Ohm voice coils allow flexible wiring configurations
  • 140 oz magnet structure delivers strong motor force for accurate cone control

12-inch dual-voice-coil subwoofer

The PowerBass S-12TD is a 12-inch car subwoofer rated at 300W RMS and 600W peak power. Its dual 4-ohm voice coils and 91 dB sensitivity suit installers who want flexible wiring options and strong output from moderate amplifier power. The thin-mount design helps it fit behind seats or in shallow enclosures.

Enclosure volume and mounting depth

Before ordering, verify that your planned enclosure provides 1.0 cu.ft of sealed volume and at least 3.25 inches of mounting depth. The 4-ohm impedance per coil must match your amplifier’s stable load when wired in series or parallel. Confirm the crossover point of 36.43 Hz aligns with your system tuning.

Sustained output with oversized motor

The 140 oz magnet structure and 2-inch vented KSV voice-coil former dissipate heat during extended play, keeping compression low when the woofer runs near 300W RMS. The single-piece injected cone and large-roll rubber surround maintain linearity through the 29 Hz to 350 Hz range. Chrome push terminals ensure a secure connection that resists loosening under vibration.

How it compares

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

Price $52.99
Cheaper than about 88% of the 268 comparable items (median $185.49).

Specifications

Product
Brand namePowerBass
Product typeSubwoofers
Audio & video
RMS power rating300 W
Frequency range29 Hz - 350 Hz
Audio sensitivity91 dB
Rated impedance4 Ohm
Power
Peak wattage600 W
Size & build
Subwoofer size12 in (30.5 cm)
Cone materialSingle Piece Custom Injected Molded Cone
Surround materialLarge Roll Rubber Surround
Frame materialFiber Composite Turbine Basket
Mounting depth3.25 in (8.26 cm)
Shipping weight5.90 kg
Package size361 × 338 × 114 mm
In the box
Sealed box volume1.0 cu.ft
More details
Voice coilDual
Voice coil construction2 in Voice Coil
Magnet construction140 oz
Crossover point36.43 Hz

Questions about this item

What comes in the box with the PowerBass S-12TD and what else is needed to install it?

The box contains the 12 inch subwoofer with its single piece custom injected molded cone, large roll rubber surround, dual 2 inch voice coils, 140 oz magnet and fiber composite turbine basket. You must supply a sealed enclosure of 1.0 cu.ft, amplifier wiring and a 4 Ohm stable amplifier.

How do I choose between the dual voice coil wiring options on this 4 Ohm model?

Each voice coil is 4 Ohm. Wire them in parallel for a 2 Ohm load or in series for an 8 Ohm load to match your amplifier's stable impedance range and power rating at 300 W RMS.

What does the 300 W RMS rating mean for daily listening in a sealed box?

It means the subwoofer can handle 300 W of continuous power without thermal damage when mounted in the specified 1.0 cu.ft sealed enclosure, delivering output down to 29 Hz at 91 dB sensitivity.

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