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Description

Rockford Fosgate Power T1D415

The Rockford Fosgate T1D415 is a 15-inch dual 4-ohm Power T1 subwoofer designed for enthusiasts seeking powerful, deep, and accurate bass. Built with a reinforced cone, VAST surround technology, and dual voice coils, it provides maximum cone area for louder and more precise low-frequency output. With an impressive 1000W RMS and 2000W Peak power handling, this subwoofer is ideal for custom enclosures, SPL builds, and high-powered car audio systems. Its robust construction ensures long-term reliability even under extreme conditions, while its compatibility with both sealed and ported boxes allows flexibility in tuning for tight punchy bass or extended low-end performance. Perfect for daily drivers, competition setups, or upgrading factory systems, the T1D415 delivers consistent, high-quality bass that enhances every genre of music and transforms the listening experience.


Features

Feature Description
Subwoofer Size 15″ (381 mm)
Frequency Response 20 Hz – 250 Hz
Sensitivity 89 dB @ 1W/1m
Impedance 4 Ohms (dual voice coil)
Power Handling 600W RMS / 1200W Peak
Cone Material Injection-molded polypropylene
Surround Material Santoprene (durable)
Voice Coil 3″ (75 mm) dual-layer high-temperature
Design Vented backplate for enhanced cooling
Included Accessories Mounting hardware

 


Specifications

Feature Details
Subwoofer Size 15″ (381 mm)
Power Handling (RMS) 600 watts
Power Handling (Peak) 1200 watts
Frequency Response 20 Hz – 250 Hz
Sensitivity 89 dB @ 1W/1m
Impedance 4 Ohms (dual voice coil)
Cone Material Injection-molded polypropylene
Surround Material Santoprene
Voice Coil 3″ (75 mm) dual-layer high-temp
Design Vented backplate for cooling

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Questions and Answers

Q1: Can the T1D415 be used in both sealed and ported enclosures?

Yes, it performs efficiently in both types, offering tight bass in sealed boxes and extended low-end in ported boxes.

Q2: What amplifier is recommended for this subwoofer?

An amplifier rated around 1000W RMS @ 2 or 4 ohms (depending on wiring) is ideal for optimal performance.

Q3: Is it suitable for SPL or competition builds?

Absolutely, it is designed to handle high power and deliver loud, punchy bass for SPL setups.

Q4: How durable is the T1D415?

It features a reinforced cone, cast aluminum frame, and advanced cooling to ensure long-term reliability.

Q5: Can it replace factory subwoofers directly?

Due to its size and power handling, a custom installation is recommended for best results.


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