DC Audio RS 18" Subwoofer

DC Audio RS 18" Subwoofer from the RSm2 line is a purpose-built bass driver for high‑power, serious car audio systems—delivering deep, controlled bass with a robust cooling design. It uses radial venting around a solid pole to push motor air across the coil for forced cooling, powered by dual 220mm Y35 Extream Grade magnets and an 8‑layer flat‑wire voice coil.

• Extremely rigid non-pressed paper cone assembly: provides precise cone control under large excursions, reducing unwanted cone flex for tighter bass.
• Multilayered polymer foam surround: maintains linear movement at high output while resisting fatigue in demanding listening sessions.
• Polypropylene dust cover with DC logo: protective cover that preserves durability and aids in keeping dust out of the motor area.
• Triple Stiff 8"OD semi cup progressive roll spiders: improves control of the spider assembly, contributing to stable linear travel and reduced distortion.
• Dual Extra heavy duty interweaved tinsel lead wire: enhances reliability and current handling during high‑power bass plays.
• Cast aluminum black frame / no invert mount: rigid structure with mounting options suited to demanding installations.
• FEA analyzed and optimized motor assembly – Fully CNC machined: ensures tight tolerances for consistent performance across units.
• Rubber mounting gasket: damps vibrations at the mounting surface for cleaner midbass and smoother integration in the vehicle.
• Chrome spring loaded push terminals: secure, easy wiring with solid contact under high current.
• Dual 1.0 or 2.0 ohm 3" Hi-temp Voice Coil: offers impedance options to match amplifier and maintain reliability under hot, demanding use.
• Dual 220mm Y35 Slugs: large magnet geometry provides strong motor force for high bass output and reduced thermal compression.
• Mounting Depth: 9.25"; Mounting Hole Diameter: 16.75"; Outside Driver Diameter: 18.5"; VC Diameter: 3.0"
• Displacement: 0.24 ft³
• Power Handling rms/peak: 1800/3600
• Sd: 1159 cm²
• Re: 3.98 Ohm
• Xmax: 24 mm
• Suggested Sealed Box: 3.5 ft³; Suggested Ported Box: 5.5 ft³

In a real car audio build, this 18" driver excels in large enclosures that can exploit its 0.24 ft³ displacement and 24 mm Xmax, delivering deep bass with high SPL potential. Its forced cooling design helps maintain performance under sustained high‑power bass, while the 3.98 Ω impedance and high‑power handling align with robust amplifiers for sustained dynamics. The enclosure recommendations provide a clear path for achieving the deepest, cleanest bass in a high‑power system.