Rockford Fosgate Punch DVC Woofer Installation and Owner's Manual
Model Series: RFP-1208, RFP-1210, RFP-1212, RFP-1215
Introduction
Congratulations on your purchase of Rockford Fosgate car audio speakers. Rockford Fosgate is dedicated to musical reproduction and has engineered products that deliver clarity and richness. For optimal performance, professional installation by an Authorized Rockford Fosgate Dealer is recommended. Please retain your receipt and original packaging for warranty purposes.
This manual is designed for the owner, salesperson, and installer, providing comprehensive information for installation and use.
PRACTICE SAFE SOUND™: Continuous exposure to sound pressure levels over 100dB can cause permanent hearing loss. High-powered autosound systems can produce levels over 130dB. Use common sense and practice safe sound.
For assistance, please have your serial number, model number, and date of purchase ready when contacting Rockford Fosgate at 1-800-795-2385.
Serial Number: _________________________
Model Number: _________________________
Table of Contents
- Introduction
- DVC Woofer Contents
- Technical Design Features
- Installation
- Recommended Enclosures
- Building an Enclosure
- Calculating Volume
- Subwoofer Crossovers
- Wiring Configurations
- Specifications
- Warranty Information
- International Information
Getting Started
This manual provides information for owners, salespeople, and installers. For quick installation guidance, refer to the Installation Section. Other information can be found using the Table of Contents. Rockford Fosgate continuously strives to improve its products, and information in this manual is subject to change without notice.
INSTALLATION sections include assembly and wiring directions.
Technical Design Features
- Stamped Basket: Constructed from rigid, lightweight, cold-rolled steel with a corrosion-resistant powder coat finish, ensuring durability in automotive applications. Result: A lightweight and rigid woofer.
- PVA Cone: Made from spruce pulp paper treated with a water-resistant PolyVinyl Acetate (PVA) Emulsion. This enhances cone rigidity and reduces distortion. Result: Increases cone rigidity and lowers distortion.
- Santoprene Rubber Surround: Resilient to temperature variations, providing consistent support for linear cone motion and damping sonic disturbances for improved frequency response. Result: Improves speaker's frequency response.
- Flat Spider: Features a proprietary flat spider design for balanced linear compliance and symmetrical voice coil control during excursion, reducing mechanical distortion for better sound quality. Result: Reduces mechanical distortion for better sound quality.
- Powder Coat Finish: An industry-standard durable finish applied electrostatically and baked on, providing a hard, shell-like surface. It is an environmentally friendly process with no toxic chemical release. Result: A durable and "earth friendly" metal finish.
- Inverted Dust Cap: Increases cone rigidity and improves power handling by forcing more air through the voice coil. Result: Increases cone rigidity, smooths frequency response, and prevents distortion.
- Aluminum Voice Coil Former: Features a black, anodized aluminum former for efficient thermal transfer, allowing high-temperature copper wire winding for improved efficiency. Result: Improves power handling by efficiently dissipating heat.
- Hyper-Extended Pole Piece: Provides a more linear magnetic field for the woofer, reducing distortion and improving low-frequency response. Result: Lowers distortion and provides better low frequency response.
- Vented Bumped Back Plate: Stepped deeper to allow greater excursion without bottoming out, enabling use in smaller enclosures. Vented with a radiused aerodynamic back vent for quiet, efficient cooling of the voice coil. Result: More excursion and increased power handling.
- Dual Voice Coils: Allows for various impedance loads (e.g., 2Ω single woofer, 4Ω or 1Ω pair of woofers), enabling compatibility with a wide range of amplifiers. Result: Allows multiple wiring configurations.
Installation
Recommended Enclosures
The following are recommended enclosure volumes for the Punch DVC series:
Punch DVC 8"
- Recommended Sealed: 0.30ft³ (8.50L)
- Recommended Ported: 0.625ft³ (17.70L)
8" Ported Enclosure Details: Fb=35Hz, Pd=2.5" (6.35cm), PI=15.25" (38.73cm)
Punch DVC 10"
- Recommended Sealed: 0.625ft³ (17.70L)
- Recommended Ported: 1.0ft³ (28.32L)
10" Ported Enclosure Details: Fb=35Hz, Pd=3" (7.62cm), PI=13.25" (33.65cm)
Punch DVC 12"
- Recommended Sealed: 1.25ft³ (35.40L)
- Recommended Ported: 2.0ft³ (56.63L)
12" Ported Enclosure Details: Fb=30Hz, Pd=2 x 2.5" (2 x 6.35cm), PI=12" (30.48cm)
Punch DVC 15"
- Recommended Sealed: 1.5ft³ (42.47L)
- Recommended Ported: 2.25ft³ (63.71L)
15" Ported Enclosure Details: Fb=30Hz, Pd=2 x 3" (2 x 7.62cm), PI=15.5" (39.37cm)
Key:
Fb = Tuning Frequency
Pd = Inside Port Diameter
PI = Total Port Length
Building an Enclosure
Enclosure walls should be rigid and not flex under pressure. Use 3/4" MDF (Medium Density Fiberboard) with internal bracing. Glue, nail, or screw the enclosure together. Seal exterior walls with polyurethane as MDF is porous.
Calculating Volume
Measure dimensions in inches and use the formula:
Box Volume (cubic feet) = (Height x Width x Depth) / 1728
For uneven sides, average the lengths. Subtract the thickness of the baffle material and the volume displaced by the speaker itself from the gross volume calculation to determine the internal volume.
Subwoofer Crossovers
Two types of crossovers exist: passive (coils/inductors between amplifier and speaker) and active (electronic filter separating signals to different amplifiers). For optimal performance, Rockford Fosgate recommends an active 80-100Hz low-pass crossover at 12dB/octave.
Wiring Configurations
Three wiring configurations are available: Series, Parallel, and Series-Parallel. Determine the best method for your amplifier.
Series Wiring
Formula: RT = R1 + R2 + R3 + etc.
Diagram showing two 4Ω speakers wired in series for an 8Ω load.
Parallel Wiring
Formula: 1/RT = 1/R1 + 1/R2 + 1/R3 + 1/R4 + etc.
Diagram showing two 4Ω speakers wired in parallel for a 2Ω load.
Series/Parallel Wiring
Diagram showing two pairs of 4Ω speakers wired in series/parallel for a 1Ω load (one pair in series, then the pairs in parallel).
Diagram showing two pairs of 4Ω speakers wired in series/parallel for a 4Ω load (two speakers in series, then two more speakers in series, and the two series pairs wired in parallel).
Key:
• RT indicates the total speaker load.
• R1, R2, etc. indicates each speaker in the system.
• Purple dot indicates the “+” terminal of a 4 ohm speaker.
Specifications
| Model | RFP-1208 | RFP-1210 | RFP-1212 | RFP-1215 |
|---|---|---|---|---|
| Nom. Imped. | 2 x 4Ω | 2 x 4Ω | 2 x 4Ω | 2 x 4Ω |
| FS (Hz) | 40 | 30 | 25 | 21 |
| RE (Ohm) | 2 x 3.6 | 2 x 3.3 | 2 x 3.3 | 2 x 4.0 |
| LE (mH) | 1.2 | 1.12 | 1.12 | 3.53 |
| QMS | 5.13 | 5.06 | 5.40 | 6.81 |
| QES | 0.38 | 0.37 | 0.45 | 0.35 |
| QTS | 0.36 | 0.34 | 0.42 | 0.33 |
| VAS (cu.ft) | 0.55 | 1.44 | 3.67 | 8.79 |
| VAS (liter) | 15.5 | 40.7 | 103.9 | 249 |
| Power (Watts RMS) | 250 | 400 | 400 | 500 |
| Power (Watts Peak) | 500 | 800 | 800 | 1000 |
| SPL (dB @ 1w/1m) | 85 | 86 | 88 | 90 |
| X-MAX (inches) | 0.41 | 0.44 | 0.44 | 0.44 |
| X-MAX (mm) | 10.3 | 11.2 | 11.2 | 11.2 |
| Speaker Disp. (cu. ft.) | .035 | .06 | .085 | .135 |
| Mntg. Dia. (in.) | 71⁄16" | 95⁄16" | 111⁄16" | 1315⁄16" |
| Mntg. Depth (in.) | 41⁄2" | 55⁄32" | 67⁄32" | 711⁄32" |
Thiele-Small data measured with both voice coils wired in parallel.
Specifications are subject to change without notice.
Limited Warranty Information
Rockford Corporation offers a limited warranty on Rockford Fosgate products under the following terms:
- Length of Warranty: 1 year on speakers, 3 years on electronics, 2 years on source units. 30 days on speaker B-stock, 90 days on electronic B-stock (receipt required).
- What is Covered: This warranty applies to Rockford Fosgate products sold to consumers by Authorized Rockford Fosgate Dealers in the United States of America or its possessions. Products purchased from dealers in other countries are covered by that country's Distributor.
- Who is Covered: This warranty covers the original purchaser of Rockford product purchased from an Authorized Rockford Fosgate Dealer in the United States. Proof of purchase (receipt with customer name, dealer name, product, and date) is required.
- Products found to be defective during the warranty period will be repaired or replaced at Rockford's discretion.
- What is Not Covered: Damage from accident, abuse, improper operation, water, theft; costs related to removal/reinstallation; service by unauthorized personnel; products with defaced or altered serial numbers; subsequent damage to other components; products purchased outside the U.S.; products not purchased from an Authorized Rockford Fosgate Dealer.
- Limit on Implied Warranties: Implied warranties are limited to the duration of the express warranty. Some states may not allow limitations on implied warranty duration. No person is authorized to assume other liability for Rockford Fosgate.
- How to Obtain Service: Call 1-800-669-9899 for Rockford Customer Service. Obtain an RA# (Return Authorization number) before returning any product. You are responsible for shipment costs.
Ship to: Electronics
Rockford Corporation
Warranty Repair Department
2055 E. 5th Street
Tempe, AZ 85281
RA#:
Ship to: Speakers
Rockford Acoustic Design
(Receiving-speakers)
609 Myrtle N.W.
Grand Rapids, MI 49504
RA#:
International Information
This product is designed, developed, and assembled in the USA by American workers. While the majority of components are from American companies, some parts may be manufactured in other countries due to the global nature of the manufacturing and loudspeaker parts industry.
Contact Information:
Rockford Fosgate
Rockford Corporation
546 South Rockford Drive
Tempe, Arizona 85281 U.S.A.
In U.S.A., (602) 967-3565
In Europe, Fax (49) 4207-801250
In Japan, Fax (81) 559-79-1265
Document Revision: 4/97
Part Number: LIT9550-B
