Rockford Fosgate T2S2-13 13" 2-Ohm Subwoofer

The Rockford Fosgate Power T2S2-13 is a 13-inch single-voice-coil subwoofer designed for high-power car audio bass systems. Its nominal 2-ohm load suits systems built around a compatible mono amplifier and a properly designed enclosure. It is intended for listeners who need a large-format driver with substantial power handling and deep low-frequency capability.

This model is rated for 2,000 watts RMS and 4,000 watts maximum power handling under CEA-2031 guidelines. Its 19-250 Hz frequency-response specification and 25.5 Hz free-air resonance support use in systems focused on low bass reproduction. Proper amplifier gain setting and enclosure construction are important for using its rated capability responsibly.

The T2S2-13 uses a three-layer cone with glass-fiber outer layers surrounding an aramid honeycomb core, plus an aluminum dustcap. This rigid cone assembly is paired with an injection-molded foam surround to support controlled movement. Rockford Fosgate's VAST surround design increases effective cone area compared with a conventional surround arrangement.

A 4-inch single-layer edge-wound aluminum voice coil, triple-stack segmented ferrite motor, and integrated heat-sinking shorting ring are part of the driver architecture. The aluminum die-cast basket includes integrated heat-sink fins, while dual progressive Nomex spiders help support the moving assembly. These construction details are designed for the mechanical and thermal demands of a high-power subwoofer installation.

The T2S2-13 can be used in sealed or vented enclosures, with different enclosure alignments offering different system behavior. Rockford Fosgate specifies a 1.85-cubic-foot sealed enclosure or a 4.0-cubic-foot vented enclosure as optimum starting points. Its 12.28-inch cutout and 9.70-inch mounting depth require a suitably large, rigid enclosure and adequate mounting clearance.

Key Features

• 2,000-Watt RMS Rating: Supports high-power amplifier systems when correctly matched and configured.
• Single 2-Ohm Voice Coil: Provides a fixed nominal 2-ohm load for compatible amplifiers.
• Three-Layer Composite Cone: Combines glass fiber and aramid honeycomb for a rigid diaphragm.
• VAST Foam Surround: Increases effective cone area for a large radiating surface.
• 4-Inch Aluminum Voice Coil: Uses an edge-wound, single-layer coil for high-power operation.
• Triple-Stack Ferrite Motor: Provides the motor structure behind the 34 mm Xmax design.

Design & Installation

The T2S2-13 is built around an aluminum die-cast basket, a detachable die-cast aluminum trim ring, and a three-layer composite cone. Its dual Nomex progressive spiders, injection-molded foam surround, vented pole piece, and integrated aluminum shorting ring are all part of the driver assembly. The subwoofer uses custom insulated 8 AWG slot-loaded speaker terminals for high-current connection capability.

Plan the enclosure around the 12.28-inch mounting cutout, 9.70-inch mounting depth, and 14.73-inch overall diameter. For a sealed build, Rockford Fosgate lists 1.85 cubic feet as the optimum internal volume; for a vented build, it lists 4.0 cubic feet with a specified slot port alignment. Use a compatible 2-ohm-stable amplifier, secure the driver with the included hardware, and account for the subwoofer's 0.250-cubic-foot displacement when calculating enclosure volume.