DC Audio RS 18" Subwoofer
Description
Description
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.
| RS-Subwoofer | 10" | 12" |
|---|---|---|
| Mounting Depth | 6.25" | 7" |
| Mounting Hole Diameter | 9.35" | 11" |
| Outside Driver Diameter | 11" | 12.5" |
| VC Diameter | 3.0" | 3.0" |
| Displacement | .16 ft³ | .17 ft³ |
| Power Handling rms/peak | 1800/3600 | 1800/3600 |
| Ohm Options | d1/d2 | d1/d2 |
| Sd | 324.29 cm² | 494.81 cm² |
| Vas | 5.39 L | 00.00 L |
| Cms | 0.036Mm/n | 0.000 Mm/n |
| Mms | 405.41 g | 000.00 g |
| Fs | 41.59 Hz | 0.00 Hz |
| Bl | 30.72 N/A | 00.00 N/A |
| Re | 3.83 Ohm | 0.00 Ohm |
| Le | 4.54 mH | 0.0 mH |
| Qms | 8.19 | 00.00 |
| Qes | 0.43 | 0.00 |
| Qts | 0.408 | 0.000 |
| Xmax | 24mm | 24mm |
| Ref SPL @1 watt | 81.3 db | 00.0db |
| Suggest Sealed Box | .75 ft³ | 1.0 ft³ |
| Suggested Ported Box | 1.0 ft³ | 1.5 ft³ |
| RS-Subwoofer | 15" | 18" |
|---|---|---|
| Mounting Depth | 8.25" | 9.25" |
| Mounting Hole Diameter | 14.0" | 16.75" |
| Outside Driver Diameter | 15.7" | 18.5" |
| VC Diameter | 3.0" | 3.0" |
| Displacement | .22 ft³ | .24 ft³ |
| Power Handling rms/peak | 1800/3600 | 1800/3600 |
| Ohm Options | d1/d2 | d1/d2 |
| Sd | 791 cm² | 1159 cm² |
| Vas | 00.00 L | 000.00 L |
| Cms | 0.00 Mm/n | 0.00 Mm/n |
| Mms | 000.00 g | 000.00 g |
| Fs | 00.0 Hz | 00.0 Hz |
| Bl | 00.00 N/A | 00.00 N/A |
| Re | 3.98 Ohm | 3.98 Ohm |
| Le | 0.00 mH | 0.00 mH |
| Qms | 00.00 | 00.00 |
| Qes | 0.000 | 0.000 |
| Qts | 0.00 | 0.000 |
| Xmax | 24mm | 24mm |
| Ref SPL @1 watt | 00.0 db | 00.0 db |
| Suggest Sealed Box | 2.0 ft³ | 3.5 ft³ |
| Suggested Ported Box | 3.0 ft³ | 5.5 ft³ |
