This document is an installation and operation manual for Rockford Fosgate Power Series DVC (Dual Voice Coil) Woofers. It provides detailed information for owners, salespeople, and installers on the features, specifications, recommended enclosures, wiring configurations, and warranty information for these car audio speakers.
The Rockford Fosgate Power Series DVC Woofers are designed for high-output, low-frequency sound reproduction in car audio systems. They are engineered to deliver clarity and richness, utilizing advanced materials and construction techniques to provide strong bass performance while requiring minimal operating space. The woofers are primarily intended for use in small sealed or small ported enclosures, offering flexibility in system design.
Key Features (Power DVC T1 Series):
- Aluminum Parabolic Cone: Contributes to the speaker's acoustic performance and durability.
- High Excursion Thermoplastic Rubber Surround: Allows for greater cone movement, enhancing bass response.
- 3" Anodized Aluminum Voice Coil Former: Provides robust construction for the voice coil.
- Dual Cast Aluminum Basket with Spider Venting: Ensures structural integrity and aids in cooling.
- 102, 124, and 220oz. Double Stacked Motor Structures: Indicates powerful motor assemblies for strong performance.
- Optimized for Sealed and Vented Enclosures: Designed to perform optimally in both types of enclosures.
Key Features (Power DVC T2 Series):
- Aluminum Parabolic Cone: Similar to the T1 series, contributing to acoustic quality.
- High Excursion Thermoplastic Rubber Surround: Enhances cone movement for improved bass.
- 3" and 4" Anodized Aluminum Voice Coil Former: Offers increased durability and power handling.
- Dual Cast Aluminum Basket with Spider Venting: Provides a sturdy frame and efficient cooling.
- 192 and 304oz. Triple Stacked Motor Structures: Features even more powerful motor assemblies for superior performance.
- Optimized for Vented Enclosures: Specifically designed for optimal performance in vented enclosures.
Important Technical Specifications (Examples for T1 Series):
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T110D2 / T110D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 3" (72.2mm)
- FS: 32 Hz (D2) / 34 Hz (D4)
- QTS: 0.574 (D2) / 0.624 (D4)
- VAS: 0.67 cu.ft. (19L)
- Xmax: 0.55" (14mm)
- SPL (dB @ 1w/1m): 82.0 dB
- Power Handling (RMS): 600 Watts
- Power Handling (Max): 1200 Watts
- Mounting Diameter: 9-5/16" (236.54mm)
- Mounting Depth: 6.4" (162.56mm)
- Speaker Displacement: 0.065 cu.ft. (1.84L)
- Recommended Sealed Box Volume: 0.75 cu.ft. (21.24L)
- Recommended Vented Box Volume: 1.5 cu.ft. (42.47L) with (1) 4" x 11" port.
-
T112D2 / T112D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 3" (72.2mm)
- FS: 30 Hz (D2) / 32 Hz (D4)
- QTS: 0.462 (D2) / 0.502 (D4)
- VAS: 1.44 cu.ft. (41L)
- Xmax: 0.55" (14mm)
- SPL (dB @ 1w/1m): 85.7 dB
- Power Handling (RMS): 600 Watts
- Power Handling (Max): 1200 Watts
- Mounting Diameter: 10-13/16" (274.64mm)
- Mounting Depth: 6.74" (171.2mm)
- Speaker Displacement: 0.08 cu.ft. (2.26L)
- Recommended Sealed Box Volume: 1.25 cu.ft. (35.39L)
- Recommended Vented Box Volume: 1.75 cu.ft. (49.55L) with (1) 4" x 9" port.
-
T115D2 / T115D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 3" (72.2mm)
- FS: 26 Hz (D2) / 28 Hz (D4)
- QTS: 0.451 (D2) / 0.501 (D4)
- VAS: 3.14 cu.ft. (89L)
- Xmax: 0.55" (14mm)
- SPL (dB @ 1w/1m): 87.5 dB
- Power Handling (RMS): 600 Watts
- Power Handling (Max): 1200 Watts
- Mounting Diameter: 13-13/16" (350.84mm)
- Mounting Depth: 8.5" (215.90mm)
- Speaker Displacement: 0.134 cu.ft. (3.79L)
- Recommended Sealed Box Volume: 2.25 cu.ft. (63.71L)
- Recommended Vented Box Volume: 2.75 cu.ft. (77.75L) with (2) 4" x 16" ports.
Important Technical Specifications (Examples for T2 Series):
-
T210D2 / T210D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 3" (72.2mm)
- FS: 31 Hz (D2) / 32 Hz (D4)
- QTS: 0.546 (D2) / 0.592 (D4)
- VAS: 0.64 cu.ft. (18L)
- Xmax: 0.55" (14mm)
- SPL (dB @ 1w/1m): 81.0 dB
- Power Handling (RMS): 800 Watts
- Power Handling (Max): 1600 Watts
- Mounting Diameter: 9-5/16" (236.54mm)
- Mounting Depth: 7.625" (193.68mm)
- Speaker Displacement: 0.085 cu.ft. (2.41L)
- Recommended Vented Box Volume: 1.5 cu.ft. (42.47L) with (1) 4" x 11" port.
-
T212D2 / T212D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 4" (101.6mm)
- FS: 30 Hz (D2) / 31 Hz (D4)
- QTS: 0.361 (D2) / 0.405 (D4)
- VAS: 0.95 cu.ft. (27L)
- Xmax: 0.75" (19mm)
- SPL (dB @ 1w/1m): 85.0 dB
- Power Handling (RMS): 1000 Watts
- Power Handling (Max): 2000 Watts
- Mounting Diameter: 10-13/16" (274.64mm)
- Mounting Depth: 8.875" (225.55mm)
- Speaker Displacement: 0.151 cu.ft. (4.28L)
- Recommended Vented Box Volume: 2.0 cu.ft. (56.63L) with (3) 3" x 14" ports.
-
T215D2 / T215D4:
- Nominal Impedance: 2Ω (D2) / 4Ω (D4)
- Voice Coil Diameter: 4" (101.6mm)
- FS: 24 Hz (D2) / 25 Hz (D4)
- QTS: 0.383 (D2) / 0.432 (D4)
- VAS: 3.18 cu.ft. (90L)
- Xmax: 0.75" (19mm)
- SPL (dB @ 1w/1m): 87.0 dB
- Power Handling (RMS): 1000 Watts
- Power Handling (Max): 2000 Watts
- Mounting Diameter: 13-13/16" (350.84mm)
- Mounting Depth: 9.875" (250.83mm)
- Speaker Displacement: 0.176 cu.ft. (4.98L)
- Recommended Vented Box Volume: 2.75 cu.ft. (77.75L) with (1) 6" x 17" port.
Usage Features:
- Enclosure Design: The manual provides detailed diagrams and recommended volumes for both sealed and vented enclosures.
- Sealed Enclosures: Simple to build, airtight construction is crucial. They offer small size, linear (flat) response, no port noise, high power handling, excellent sound quality, and extended low-frequency output.
- Vented Enclosures: Include a port to "tune" the enclosure, offering higher average output than sealed boxes and adjustable tuning frequency by changing port length. They provide deep bass response with lower power requirements and great high output.
- Wiring Configurations: Due to the DVC design, various wiring options (Series, Parallel, Series-Parallel) are available to match the impedance load to the amplifier. Diagrams are provided for 1, 2, 2.67, and 4 ohm loads for different numbers of DVC speakers.
- Subwoofer Crossovers: For optimal performance, an active 80-100Hz low-pass crossover at 12dB/octave is recommended.
- Safety Instructions: Emphasizes reading the manual, professional installation if unsure, and disconnecting the battery negative terminal before installation to prevent damage or injury.
- Volume Calculation: Instructions and a formula are provided to calculate enclosure volume, accounting for baffle material thickness and speaker displacement.
Maintenance Features:
- The manual does not explicitly detail user-level maintenance features for the woofers themselves beyond proper installation and usage.
- Warranty Information: Rockford Corporation offers a limited warranty.
- Length of Warranty: Power Amplifiers – 2 Years; Source Units, Speakers, Signal Processors, and PUNCH Amplifiers – 1 Year; Type RF Amplifiers – 3 Years; Factory Refurbished Products – 90 days (with receipt).
- Coverage: Applies to products sold by Authorized Rockford Fosgate Dealers in the U.S. to the original purchaser. Defective products will be repaired or replaced.
- Exclusions: Damage from accident, abuse, improper operations, water, theft, shipping; removal/reinstallation costs; service by unauthorized personnel; defaced serial numbers; subsequent damage to other components; products purchased outside the U.S. or from unauthorized dealers.
- Implied Warranties: Limited to the period of the express warranty.
- Obtaining Service: Contact the Authorized Dealer or Rockford Customer Service (1-800-669-9899) to obtain a Return Authorization (RA) number.
The manual also includes contact information for Rockford Fosgate in the U.S., Europe, and Japan, and directs users to their website for further information and accessories. It strongly advises "Practice Safe Sound" due to the potential for hearing loss from continuous exposure to high sound pressure levels.
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