Rockford Fosgate Power 15″ T1 with Ported Enclosure

Original price was: $1,250.00.Current price is: $900.00.

T1D215

Out of stock

The Rockford Fosgate Power Series T1D215 is a high-performance 15″ dual 2-ohm subwoofer that incorporates innovative technologies allowing it to perform like a larger woofer compared to previous models. This premium subwoofer is engineered for extreme output and durability, featuring 1,000 watts RMS power handling capability and 2,000 watts maximum power handling.

The T1D215 utilizes Rockford’s patented VAST (Vertical Attach Surround Technique) technology, which increases the cone surface area by up to 25%, resulting in deeper, more powerful bass from a standard-sized subwoofer. Its FlexFit basket design not only provides a clean, high-tech appearance but also offers exceptional installation flexibility for custom audio systems.

Built with premium materials throughout, the T1D215 features a Kevlar fiber reinforced paper cone, symmetrical dual progressive roll tear-resistant poly-cotton spiders, and an anodized aluminum voice coil former with copper clad aluminum wire. The rigid die-cast aluminum basket and substantial 229 oz. magnet combine with optimized pole piece and spider venting to deliver outstanding thermal management and performance.

Product Highlights

  • 15″ dual 2-ohm voice coil subwoofer
  • 1,000 watts RMS power handling (2,000 watts max)
  • Patented VAST technology increases cone area up to 25%
  • Kevlar fiber reinforced paper cone
  • Anodized aluminum heat sinking dust cap
  • FlexFit die-cast aluminum basket
  • Optimized pole piece and spider venting
  • Includes grille with integral trim ring
  • 3″ voice coil with high-temperature Nomex reinforcement collar
  • 8 AWG insulated all-metal input spring terminal connections

Package Contents

  • T1D215 15″ dual 2-ohm subwoofer
  • Grille with integral trim ring
  • Installation hardware
  • Owner’s manual

Performance Specifications

  • Power Handling: 1,000 watts RMS (2,000 watts max)
  • Sensitivity: 87.9 dB (1W/1m)
  • Frequency Response: 26.3 Hz (Fs) and up
  • Nominal Impedance: Dual 2-ohm
  • Voice Coil Diameter: 3.0″ (75.5mm)
  • Xmax (Linear Excursion): 16.4mm
  • CEA-2031 Compliant: Yes

Thiele/Small Parameters

  • Re (DC Resistance): 3.25 ohms
  • Fs (Resonance Frequency): 26.3 Hz
  • Qes (Electrical Q): 0.46
  • Qms (Mechanical Q): 6.50
  • Qts (Total Q): 0.43
  • Vas (Acoustic Volume): 102 liters
  • Sd (Cone Area): 845 cm²
  • Le (Voice Coil Inductance): 1.6 mH

Physical Specifications

  • Subwoofer Size: 15″
  • Mounting Depth: 8.39″ (213mm)
  • Cutout Diameter: 13.9375″ (354mm)
  • Magnet Weight: 229 oz. (6.49 kg)
  • Woofer Displacement: 0.191 cu. ft. (5.4 liters)

Construction Features

  • Cone Material: Kevlar fiber reinforced paper
  • Basket Design: Rigid die-cast aluminum FlexFit frame
  • Voice Coil Former: Anodized aluminum with copper clad aluminum wire
  • Spider: Symmetrical dual progressive roll tear-resistant poly-cotton
  • Dust Cap: Anodized aluminum heat sinking design
  • Terminal Type: Proprietary 8 AWG insulated all-metal input spring terminals
  • Tinsel Leads: Periodic-stitched fatigue resistant wire

Enclosure Recommendations

  • Sealed Box Volume: 2.25 cu. ft. (63.7 liters)
  • Vented Box Volume: 2.66 cu. ft. (75.3 liters)

Special Features

  • VAST technology for increased cone area
  • FlexFit basket for flexible installation options
  • Optimized magnetic and compliance geometry
  • Extensive thermal management features
  • Premium materials throughout for maximum durability
  • Integrated grille with trim ring included
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