TREO Engineering
RSX Subwoofers
TREO RSX Subwoofers
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Depth, accuracy and volume are the desires of all car audio maniacs, and the TREO RSX delivers on all three fronts. It all starts with an ultra rigid hybrid cone embossed with the TREO Engineering logo.

Two inch diameter dual two or dual four ohm voice coils provide the flexibility to be able to use one, two, four or more subwoofers with a wide variety of amplifier choices. These durable four-layer copper voice coils allow TREO RSX Subwoofers to handle up to 350W RMS. The CNC-machined top plate and monoblock T-yoke are milled to 0.003 inch tolerances and combine with a single-stack large-diameter strontium ferrite magnet to supply extreme excursion and compact mounting depth. A rubber magnet offers protection to the magnet and a unique TREO style.

The sturdy hydro-formed steel frame, resin-impregnated poly-cotton spider and UV-resistant composite foam surround ensure years of auditory bliss.


  • Available in 8, 10 and 12 inch diameters.
  • Precision CNC-machined low-carbon steel 150oz motor structure
  • Powerful and durable Strontium ferrite magnet with a styled magnet boot
  • Durable and attractive black oxide-treated motor structure
  • Bumped monoblock T-yoke with large diameter pole vent
  • High excursion motor structure and suspension design
  • Wide three-layer UV-treated extended displacement foam surround
  • Resin-impregnated poly-cotton spider for increased cone control
  • Cold-rolled stamped steel basket with rolled edges
  • Mica-impregnated polypropylene hybrid cone with embossed TREO logo
  • 2.0 inch high-temperature Aluminum voice coil with integral heatsink
  • 350 Watts RMS Power Handling
  • Available with dual 2 and dual 4 Ohm voice coils for maximum installation flexibility
  • Optimized for very small to medium sealed, vented, and bandpass enclosures
  • Built by hand in the United States from domestic and imported components

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