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12 inch PowerBass S1204 subwoofer with black steel basket and textured cone

PowerBass

PowerBass S1204 12" S Series 4 Ohm 600W car speaker

SKU CH-R2RH-9BYH1

12-inch single 4-ohm subwoofer with 600 W peak power, 2-inch BASV voice coil, large-roll foam surround and wool-paper cone for low-distortion bass in small sealed or ported enclosures

  • Speaker Size6.5"
  • 12-inch subwoofer with larger magnet for stronger bass
  • 600 W peak power handles demanding low-frequency output
  • 4-ohm single voice coil suits versatile wiring options
  • 2-inch BASV voice coil former improves thermal handling
  • Large-roll foam surround enables precise linear cone movement

12-inch S-Series subwoofer

The PowerBass S1204 is a 12-inch S-Series subwoofer built for car audio enthusiasts who want hard-hitting bass without a premium price. It handles 600 W peak power and uses a single 4-ohm voice coil for straightforward wiring. The design targets drivers seeking loud, low-distortion output in a compact enclosure.

Upgrade from smaller cones

Moving up from a 6.5-inch or 10-inch driver adds cone area and a larger magnet structure, so the jump is worth it when you need more volume and deeper extension in a sealed or ported box. The 4-layer wool/paper cone and large-roll foam surround keep distortion low at higher excursion. Buyers who need multiple subwoofers for extreme SPL will find a single unit limiting.

Straightforward enclosure install

The stamped steel basket with non-resonant finish bolts into standard 12-inch cutouts, and the single 4-ohm coil simplifies amplifier matching. A 2-inch BASV voice-coil former handles thermal loads during extended play. Installers must seal the enclosure properly; air leaks are the most common cause of reduced output and mechanical noise.

Highlights

  • 12-inch subwoofer with larger magnet for stronger bass
  • 600 W peak power handles demanding low-frequency output
  • 4-ohm single voice coil suits versatile wiring options
  • 2-inch BASV voice coil former improves thermal handling
  • Large-roll foam surround enables precise linear cone movement

Specifications

Speaker Size6.5"

Questions about this item

What mounting depth and cutout diameter does the 12-inch S1204 require?

The subwoofer uses a 12-inch frame; allow the manufacturer's specified mounting depth and a matching circular cutout for the stamped steel basket.

How do I wire the single 4-ohm voice coil to my amplifier, and what mistake should I avoid?

Connect the two terminals directly to a 4-ohm stable amplifier channel; do not bridge the coil or parallel it as if it were dual voice coil.

When should I inspect or replace the foam surround on this subwoofer?

Check the large-roll foam surround periodically for drying, cracking or separation; replace it if the cone movement becomes uneven or distortion appears.

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