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Power T1D212 / T1D412

800 Watt

Power T1D212 / T1D412

Technical Highlights

  • 800 watts RMS, dual 2-ohm, 12" subwoofer, VAST technology.
  • FlexFit basket, die-cast aluminum, optimized ventilation.
  • Kevlar fiber reinforced diaphragm, 3" voice coil, 1600 watts max.
  • More technical details
€569.05
-5% €599.00 €569.05
2% discount with credit card
including VAT
Impedance: D2 (2x2 Ohm)
Expected Sep 14 to Sep 17 with you.
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A Rockford Fosgate Power T1D212 / T1D412 12 subwoofer with VAST technology, black cone, ribbed sides, and a silver logo band, shown at an angle.
€569.05
€599.00 €569.05

Rockford Fosgate Power T1D212 / T1D412 is a 12 inch (30 cm) Subwoofer in Dual 2 Ohm and Dual 4 Ohm versions. The patented VAST technology increases the cone area by up to 25%. The FlexFit basket, a sturdy aluminum die-cast basket, and a Kevlar fiber reinforced paper cone are included. High-temperature voice coil with Nomex reinforcement collar, anodized aluminum dust cap for heat dissipation, and an anodized aluminum voice coil former with copper-clad aluminum wire are present. Symmetrical, double, progressively rolled poly-cotton spiders, periodically sewn lamella wire, and proprietary insulated 8 mm² all-metal input terminals with spring connection are integrated. Optimized pole core and spider ventilation as well as optimized and tuned magnet and complication geometry are executed. The load capacity is 800 watts RMS and 1600 watts Max, SPL is specified at 85 dB, Xmax is 16 mm. Mounting depth 171 mm, cutout diameter 285 mm, displacement 3.0 liters, magnet weight 3.48 kg, shipping weight 5.10 kg.

Features
  • 12 inch (30 cm) Subwoofer
  • Available as Dual 2 Ohm (T1D212) or Dual 4 Ohm (T1D412)
  • RMS power: 800 watts
  • Maximum power: 1600 watts
  • VAST technology (increases cone area by up to 25%)
  • FlexFit basket
  • Kevlar fiber reinforced paper cone
  • Anodized aluminum dust cap for heat dissipation
  • High-temperature voice coil with Nomex reinforcement collar
  • Anodized aluminum voice coil former / copper-clad aluminum wire
  • Symmetrical, double, progressively rolled poly-cotton spiders
  • Periodically sewn, fatigue-resistant lamella wire
  • Proprietary insulated 8 mm² all-metal input terminal with spring connection
  • Sturdy aluminum die-cast basket
  • Optimized pole core and spider ventilation
  • Optimized and tuned magnet and complication geometry
  • Mounting depth: 171 mm
  • Cutout diameter: 285 mm
  • Displacement of the woofer: 3.0 liters
  • Magnet weight: 3.48 kg
  • Shipping weight: 5.10 kg
Technical specifications
  • Voice coil diameter: 76.2 mm
  • SPL: 85 dB (1 W/1 m)
  • Xmax: 16 mm
  • D2 (2x2 Ohm) variant:
    • Nominal impedance: Dual 2 Ohm
    • SPL (dB @ 1 W/1 m): 85
    • Qts: 0.52
    • Qms: 4.50
    • Volume (liters): 55.8
    • Xmax: 16 mm
    • Le: 1.8 mH
    • Fs: 28 Hz
    • Qes: 0.59
    • Sd: 548 cm²
    • Re: 3.25 Ohm
    • Closed enclosure volume (Vb): 35.3 liters
    • Bass reflex enclosure volume (Vb): 49.5 liters
  • D4 (2x4 Ohm) variant:
    • Nominal impedance: Dual 4 Ohm
    • Fs: 29.2 Hz
    • Sd: 548 cm²
    • Qts: 0.61
    • Qes: 0.71
    • Qms: 4.50
    • Vas: 55.8 liters
    • Xmax: 16 mm
    • Re: 6.50 Ohm
    • Le: 2.4 mH
    • SPL (dB @ 1 W/1 m): 85
    • Closed enclosure volume (Vb): 35.3 liters
    • Bass reflex enclosure volume (Vb): 49.5 liters

Frequently Asked Questions about Power T1D212 / T1D412

What advantages does the VAST technology offer in the Power T1D212 / T1D412?

The VAST technology, integrated into the Power T1D212 / T1D412 from Rockford Fosgate, maximizes the effective diaphragm area of the Subwoofer by up to 25%. This means that these Subwoofers perform like a significantly larger Woofer, even though they maintain the same form factor. The increase in diaphragm area leads to improved bass reproduction and increased pressure, which is particularly beneficial for music lovers who desire intense bass. Moreover, the technology enhances sound quality by producing more precise and defined bass waves, ensuring clear audio playback even at high volumes.

What is the power handling of the Rockford Fosgate Power T1D212 / T1D412 Subwoofer?

The Rockford Fosgate Power T1D212 / T1D412 Subwoofer impresses with a power handling of 800 Watts RMS and a maximum of 1600 Watts. This capability allows the Subwoofer to achieve consistent and reliable performance even during intense audio playback, without sacrificing sound quality. Whether in dense music recordings or at deep bass frequencies, the Subwoofers maintain their clarity and avoid distortion. These performance features are particularly suitable for users who want to push their audio hardware to the limits and prefer powerful systems.

What are the dimensions of the Power T1D212 / T1D412 and what mounting depth is required?

The Power T1D212 / T1D412 Subwoofer from Rockford Fosgate has a diameter of 12 inches (30 cm) and requires a cutout with a diameter of 285 mm. The mounting depth is 171 mm, which must be considered when planning the enclosure or integrating it into the user's vehicle. These specific dimensions ensure easy installation in compatible enclosures or vehicle areas designed for high-performance audio hardware. The displacement of the subwoofer is calculated to be 3.0 liters, which must be taken into account for optimal enclosure design.

What impedance variants are available for the Power T1D212 / T1D412?

The Rockford Fosgate Power T1D212 / T1D412 Subwoofer is available in two impedance variants: Dual 2-Ohm and Dual 4-Ohm. These dual-ohm variants offer flexibility in system configuration and allow the subwoofers to be tailored specifically to different amplifier types and sound preferences. The dual 2-Ohm variant has a resistance of 3.25 Ohms, while the 4-Ohm version has a resistance of 6.50 Ohms. This allows the user to precisely adjust the ohm configuration to meet the technical needs of their audio system.

What materials are used in the construction of the Power T1D212 / T1D412?

The Rockford Fosgate Power T1D212 / T1D412 uses high-quality materials to ensure durability and performance. The paper cone is reinforced with Kevlar fibers to provide high stability. An anodized aluminum dust cap is integrated for efficient heat dissipation. High-temperature voice coils are complemented with spun Nomex® reinforcement collars. The aluminum die-cast basket ensures structural integrity, while symmetrically double-structured poly-cotton spiders are used to minimize vibrations and extend the lifespan of the components.

How do the Thiele-Small parameters differ between the variants?

The Thiele-Small parameters of the Power T1D212 / T1D412 vary depending on the impedance version. In the Dual 2-Ohm version, the Qts is 0.52, Fs is at 28 Hz, and Sd is 548 cm². The 4-Ohm version has a Qts of 0.61, an Fs of 29.2 Hz, while Sd remains at 548 cm². These parameters directly influence the sound characteristics and resonance frequency of the subwoofer, helping to achieve the desired acoustic result when considering these parameters.

What type of enclosure is recommended for the Power T1D212 / T1D412?

The Rockford Fosgate Power T1D212 / T1D412 is optimized for both sealed enclosures and bass reflex enclosures. The sealed enclosure configuration requires a volume of 35.3 liters, whereas a volume of 49.5 liters is recommended for a bass reflex enclosure. Each type of enclosure offers different acoustic advantages: sealed systems provide tight, precise bass, while bass reflex configurations are known for more powerful, extroverted bass. The sizing of the enclosure significantly affects sound quality and intensity and should therefore be closely matched to user preferences.

What impact does the FlexFit basket have on installation?

The FlexFit basket of the Power T1D212 / T1D412 from Rockford Fosgate allows for extreme flexibility during installation, which is particularly advantageous in non-standard or challenging mounting options in vehicles. This design aspect enables easy adjustments without compromising the structural integrity of the Subwoofer. This feature, along with the sturdy aluminum components, ensures that the Subwoofer remains stable even in demanding installations and vibrations. The FlexFit basket also improves the fit in the installation location, ensuring airtight integration and optimal sound quality.

How do the voice coil characteristics affect performance?

The Power T1D212 / T1D412 is equipped with a high-temperature resistant voice coil supported by a Nomex® reinforcement collar. This construction ensures excellent heat dissipation, which is important at high power outputs to avoid thermal overload. The anodized aluminum voice coil former also supports a copper-clad aluminum wire that provides efficient electrical conductivity. This combination means a uniform distribution of electrical energy and thus reliable performance that maximizes the potential of the Subwoofer, even during intense audio playback.

What specific installation tips for the car take dimensions into account?

The installation of the Power T1D212 / T1D412 requires precise consideration of the mounting depth of 171 mm and the cutout with a diameter of 285 mm. Before installation in the vehicle, the compatibility of the space should be checked to seamlessly integrate the Subwoofer. The displacement of the woofer of 3.0 liters should be considered when sizing the enclosure in vehicles with limited space. A well-secured enclosure with an accurately sized cutout ensures optimal performance and avoids unwanted vibrations or resonances during operation.

Manufacturer information/responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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