T1D2/D410

The Rockford Fosgate Power T1D210 / T1D410 is a powerful 25 cm (10-inch) high-performance subwoofer from the Power Series, designed to deliver powerful, precise, and dynamic bass reproduction. With a power handling capacity of 600 watts RMS and a maximum of 1,200 watts, it offers ample power reserves for demanding car audio systems.

The Kevlar-reinforced paper cone provides high rigidity combined with low weight, while the durable Santoprene surround ensures controlled movement even during large cone excursions. A solid die-cast aluminum construction, the 76-mm dual voice coil, and the powerful dual magnet system ensure high power handling and reliable heat dissipation.

Thanks to the two available impedance options—2 × 2 ohms or 2 × 4 ohms—the subwoofer can be flexibly adapted to different amplifier configurations. The design is suitable for both sealed and bass-reflex enclosures.

Product Features

• 25 cm (10") high-performance subwoofer from the Rockford Fosgate Power Series

• 600 watts RMS / 1,200 watts maximum power handling

• Dual voice coil with a choice of 2 × 2 ohms or 2 × 4 ohms

• Kevlar-fiber-reinforced paper diaphragm for high stability

• Durable Santoprene rubber surround for large diaphragm deflections

• Sturdy die-cast aluminum basket

• 76-mm high-temperature voice coil with aluminum frame

• Dual-magnet drive for high load capacity

• Double Nomex Centering Spider

• Aluminum dust-proof cover for improved heat dissipation

• Optimized ventilation of the pole core and centering spindles

• High-quality connectors for speaker cables

• Suitable for sealed and bass-reflex enclosures
  
  

Technical Specifications

• Manufacturer: Rockford Fosgate

• Series: Power T1

• Model: T1D210 / T1D410

• Type: Passive Subwoofer

• Nominal diameter: 25 cm (10")

• RMS Power Handling: 600 watts

• Maximum power handling: 1,200 watts

• Voice coils: 2

• Voice coil diameter: 76 mm (3")

• Voice coil winding height: 40 mm

• Diaphragm material: Kevlar-paper composite

• Bead material: Santoprene

• Basket material: Die-cast aluminum

• Centering: Double Nomex centering spider

• Magnetic drive: Dual magnet, 2 × 51 oz

• Linear stroke (Xmax): ±16 mm

• Maximum mechanical deflection: ±30 mm

• Effective membrane area (Sd): 345 cm²

• Sound pressure level (1 W / 1 m): 83 dB

• Outer diameter: 280 mm

• Installation diameter: 230 mm

• Installation depth: 162 mm
  
  

Technical Specifications T1D210 – 2 × 2 ohms

• Nominal impedance: 2 × 2 ohms

• Possible total impedance: 1 ohm in parallel / 4 ohms in series

• RMS Power Handling: 600 watts

• Maximum power handling: 1,200 watts

• Resonance frequency (Fs): 35 Hz

• Overall Quality (Qts): 0.54

• Electrical Quality (Qes): 0.59

• Mechanical Grade (Qms): 6.00

• Equivalent air volume (Vas): 15.4 liters

• DC resistance (Re): 2 × 1.65 ohms

• Moving mass (Mms): 199 g

• Linear stroke (Xmax): ±16 mm

• Sound pressure level (SPL): 83 dB
  
  

Technical Specifications T1D410 – 2 × 4 ohms

• Nominal impedance: 2 × 4 ohms

• Possible total impedance: 2 ohms in parallel / 8 ohms in series

• RMS Power Handling: 600 watts

• Maximum power handling: 1,200 watts

• Resonance frequency (Fs): 36 Hz

• Total quality (Qts): 0.65

• Electrical quality (Qes): 0.73

• Mechanical Grade (Qms): 5.70

• Equivalent air volume (Vas): 15.7 liters

• DC resistance (Re): 2 × 3.25 ohms

• Voice coil inductance (Le): 2.5 mH

• Moving mass (Mms): 180 g

• Linear stroke (Xmax): ±16 mm

• Sound pressure level (SPL): 83 dB
  
  

Recommended Case

Enclosed housing

• Recommended net volume: 21.2 liters

• Lower cutoff frequency (F3): approx. 40 Hz
  

Bass-reflex enclosure

• Recommended net volume: 42.5 liters

• Bass reflex port diameter: 100 mm

• Bass reflex port cross-sectional area: 80 cm²

• Bass reflex port length: 28 cm

• Tuning frequency (Fb): 40 Hz

• Lower cutoff frequency (F3): approx. 32 Hz
  
  

What's Included

• 1 × Rockford Fosgate Power T1D210 or T1D410 subwoofer (depending on the selected model)

• 1 × Protective grille / Decorative ring

• Jumper for impedance configuration

• User and Installation Manual