Punch P310D4 - Subwoofer Rockford Fosgate - Free user manual and instructions

Product Type	Dual voice coil subwoofer
Brand	Rockford Fosgate
Model	Punch P310D4
Diameter	10 inches (25.4 cm)
Coil Type	Dual voice coil (DVC)
Impedance per coil	4 ohms
RMS Power (estimated)	300 Watts
Maximum Power (estimated)	600 Watts
Frequency Response (estimated)	27 - 250 Hz
Sensitivity (estimated)	86 dB
Recommended Enclosure Type	Sealed or ported enclosure
Recommended Filter	Active low-pass filter 80-100 Hz at 12 dB/octave
Power Supply	Passive (requires external amplifier)
Package Contents	Speaker, trim ring, screws, installation manual
Care and Cleaning	Clean with a dry cloth. Avoid solvents or abrasive products.
Safety	Disconnect battery before installation. Listen at moderate volume to protect hearing.
Spare parts and repairability	Contact an authorized Rockford Fosgate dealer for after-sales service.
Warranty	1 year for Punch speakers (original purchaser, USA)
General Information	Manual available online in PDF format. For assistance: 1-800-669-9899 (USA).

Frequently Asked Questions - Punch P310D4 Rockford Fosgate

How to wire a DVC 4 ohm subwoofer to get a 2 ohm load?

For a single DVC 4 ohm speaker, connect the two coils in parallel (positive terminals together, negative terminals together) to get a 2 ohm load.

What is the difference between sealed and ported enclosures?

A sealed enclosure offers linear response and good sound quality, while a ported (or bass-reflex) enclosure provides higher efficiency at the tuning frequency, with more powerful but less linear bass.

What filter to use for this subwoofer?

Rockford Fosgate recommends an active low-pass filter set between 80 and 100 Hz with a slope of 12 dB per octave for optimal performance.

How to calculate enclosure volume?

The internal volume (in liters) is calculated by multiplying height, length, and width (in cm) and dividing by 1000. Remember to subtract material thickness and the speaker's displacement volume.

What materials to use to build the enclosure?

Use high or medium density fiberboard (MDF). Ensure joints are glued and screwed, and apply a silicone sealant to prevent air leaks.

How to maintain the subwoofer?

Gently clean the cone and suspension with a dry cloth. Never use solvents or chemicals that could damage the materials.

What is the warranty period for this product?

Punch speakers have a limited one-year warranty from the date of purchase, valid for the original purchaser in the USA.

Where to find the serial number of the unit?

The serial number is indicated on the outside of the original packaging. Keep it for warranty verification or in case of theft.

Can I install the unit myself?

Yes, but if you are not confident, contact an authorized Rockford Fosgate dealer. Before any installation, disconnect the negative battery terminal to avoid risks.

What accessories does Rockford Fosgate recommend for this subwoofer?

Rockford recommends using accessories from the Connecting Punch line (RCA cables, speaker cables, power cables) for a quality installation.

USER MANUAL Punch P310D4 Rockford Fosgate

Installation & Operation

DVC - Dual Voice Coil Woofers

Dear Customer,

Congratulations on your purchase of the world's finest brand of car audio speakers. At Rockford Fosgate we are fanatics about musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures, we have created a wide range of products that reproduce music with all the clarity and richness you deserve.

For maximum performance we recommend you have your new Rockford Fosgate product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized training through Rockford Technical Training Institute (RTTI). Please read your warranty and retain your receipt and original carton for possible future use.

Great product and competent installations are only a piece of the puzzle when it comes to your system. Make sure that your installer is using 100% authentic installation accessories from Connecting Punch in your installation. Connecting Punch has everything from RCA cables and speaker wire to Power line and battery connectors. Insist on it! After all, your new system deserves nothing but the best.

To add the finishing touch to your new Rockford Fosgate image order your Rockford accessories, which include everything from T-shirts and jackets to hats and sunglasses.

To get a free brochure on Rockford Fosgate products and Rockford accessories,

visit our web site at: www.rockfordfosgate.com

or, in the U.S. call 1-800-669-9899 or FAX [phone].

For all other countries, call +001-480-967-3565 or FAX [phone].

PRACTICE SAFE SOUND™

Continuous exposure to sound pressure levels over 100dB may cause permanent hearing loss. High powered auto sound systems may produce sound pressure levels well over 130dB. Use common sense and practice safe sound.

If, after reading your manual, you still have questions regarding this product, we recommend that you see your Rockford Fosgate dealer. If you need further assistance, you can call us direct at 1-800-669-9899. Be sure to have your serial number, model number and date of purchase available when you call.

The serial number can be found on the outside of the box. Please record it in the space provided below as your permanent record. This will serve as verification of your factory warranty and may become useful in recovering your product if it is ever stolen.

Serial Number: ____

Model Number: ____

TABLE OF CONTENTS

Introduction....2

Safety Instructions .... 3

Design Features....3

Recommended Enclosures ..... 4-5

Sealed Enclosures 4

Vented Enclosures....5

Wiring Configurations....6

Building an Enclosure 7

Calculating Volumes. 7

Subwoofer Crossovers 7

Specifications....8

Limited Warranty Information ..... 9

NOTE: Review each section for more detailed information.

GETTING STARTED

Welcome to Rockford Fosgate! This manual is designed to provide information for the owner, salesperson and installer. For those of you who want quick information on how to install this product, please turn to the Installation Section of this manual. Other information can be located by using the Table of Contents. We, at Rockford Fosgate, have worked very hard to make sure all the information in this manual is current. But, as we are constantly finding new ways to improve our product, this information is subject to change without notice.

SAFETY INSTRUCTIONS

WARNING

This symbol with "WARNING" is intended to alert the user to the presence of important instructions. Failure to heed the instructions will result in severe injury or death.

CAUTION

This symbol with “CAUTION” is intended to alert the user to the presence of important instructions. Failure to heed the instructions can result in injury or unit damage.

CAUTION: To prevent injury and damage to the unit, please read and follow the instructions in this manual. We want you to enjoy this system, not get a headache.

CAUTION If you feel unsure about installing this system yourself, have it installed by a qualified Rockford Fosgate technician.

CAUTION Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire and/or possible injury.

CONTENTS OF CARTON

Punch DVC Woofer Trim Ring

Screw Pack Installation & Operation Manual

DESIGN FEATURES

The Punch DVC Woofers are high performance, low frequency drivers with dual voice coils. These woofers were designed for use primarily in small sealed and small ported enclosures. By utilizing the latest materials and construction techniques, we are able to offer a speaker with high output at low frequencies while requiring a minimum of operating space.

This manual outlines two specific types of enclosures that provide distinctly different performance. This section is to help you decide which type is best for your application.

SEALED ENCLOSURES

Sealed enclosures are the simplest to build. The most important part of building a sealed enclosure is to make sure that the enclosure is airtight. Using glue and some type of sealant on all seams will ensure solid construction and prevent air leaks. The box volume will directly impact the performance of the speaker. Larger enclosures will provide flatter response and deeper bass where smaller boxes will provide a bump in the response curve and generally higher output for greater SPL.

Advantages of sealed enclosures:

• Small enclosures
• Linear (Flat) response
• No port noise

• High power handling at all frequencies
• Excellent for sound quality
- Extended low frequency output when compared to vented enclosures

P38D2 / P38D4 Recommended Sealed .30ft ⁴ (8.5L)

P310D2 / P310D4 Recommended Sealed .65ft ⁴ (18.41L)

P312D2 / P312D4 Recommended Sealed .75ft ³ (21.24L)

P315D2 / P315D4 Recommended Sealed 2.00ft ³ (56.63L)

VENTED ENCLOSURES

Vented enclosures vary only from the sealed enclosure in that a vent or port is added to "tune" the enclosure. The enclosures recommended are designed for great overall performance. Larger boxes tend to be easy to tune to lower frequencies while medium and small boxes are easier to tune to higher frequencies. The vented design is less linear in response than the sealed box but with noticeably more output at the tuning frequency.

Advantages of vented enclosures:

• Higher average output than sealed
- Tuning frequency can be easily adjusted by changing port length

• Deep bass response with lower power requirements
• Great for high output with limited power

By varying the wiring configuration of your speakers you can create an impedance load to match your system. Since each voice coil of a DVC speaker carries its own impedance, altering the wiring configurations gives a range of options for impedance loads. Series, Parallel, or Series-Parallel wiring configurations are different techniques for wiring speakers that provide different loads. Series configuration is a string method where speakers are wired end to end. Parallel configuration uses two or more speakers wired across common terminals. Series-Parallel configuration combines both techniques. Choose the wiring diagram below that corresponds to the number of woofers and the impedance of your amplifier.

(1) 4 ohm DVC Speaker = 2 ohm Load

(2) 4 ohm DVC Speaker = 1 ohm Load

(1) 2 ohm DVC Speaker = 4 ohm Load

(2) 2 ohm DVC Speaker = 2 ohm Load

(2) 4 ohm DVC Speaker = 4 ohm Load

(3) 4 ohm DVC Speaker = 2.67 ohm Load

(4) 4 ohm DVC Speaker = 2 ohm Load

(4) 2 ohm DVC Speaker = 4 ohm Load

To work properly, the walls of the enclosure must be rigid and not flex when subjected to the high pressures generated by the speaker's operation. For optimum performance, we recommend using 3/4" MDF (Medium Density Fiberboard) and internal bracing. The enclosure should be glued together and secured with nails or screws.

CALCULATING VOLUME

Calculating volume is merely a matter of measuring the dimensions in inches and using the formula:

Box Volume = Height " x Width" x Depth"

(cubic feet) 1728 cu. in./cu. ft.

If two facing sides are of uneven length, add them together and divide by two to take the average. Using this number will give you the volume without the necessity of calculating the box in sections and adding the sections together. The thickness of the baffle material reduces the internal volume so this must be subtracted from the outside dimensions to determine the internal volume. The speaker itself also reduces the internal volume. The amount of air displaced by each model is listed on the specification sheet and should also be subtracted from the gross volume calculation.

SUBWOOFER CROSSOVERS

There are two operational types of crossovers, passive and active. Passive crossovers (coils or inductors) are placed on the speaker leads between the amplifier and speaker. An active crossover is an electronic filter which separates the audio signal fed to different amplifiers. For optimum subwoofer performance, we recommend using an active 80-100Hz low-pass crossover at 12dB/octave.

FEATURES - Punch DVC P3

• Parabolic Injection Molded Polypropylene Cone
- 2" and 2.5" Aluminum Voice Coil Former
- Cast Aluminum Basket with Spider Venting

• 77 and 102oz. Double Stacked Motor Structures
• Linear Spider
• Optimized for Sealed and Vented Enclosures

Model - Punch DVC P38D2 P38D4 P310D2 P310D4
Nominal Impedance (ohms) 2 (2) 4 (2) 2 (2) 4 (2)
Voice Coil Diameter-inch (mm) 2 (50.8) 2 (50.8) 2.5 (63.5) 2.5 (63.5)
FS (Hz)	39	42	27	28
QTS	0.471	0.517	0.520 0.564
VAS-cu.ft. (liter)	0.228 (6.48)	0.228 (6.48)	0.92 (26)	0.92 (26)
Xmax-inch (mm)	0.43 (11.0)	0.43 (11.0)	0.47 (12.0)	0.47 (12.0)
SPL (dB @ 1w/1m)	80.7	81.1	85.0	85.0
Power Handling (RMS)	250	250	400	400
Power Handling (Max)	500	500	800	800
Mounting Dia.-inch (mm)	7-1/8 (180.98)	7-1/8 (180.98)	9-5/16 (236.54)	9-5/16 (236.54)
Mounting Depth-inch (mm)	5-1/16 (128.59)	5-1/16 (128.59)	5-15/16 (150.81)	5-15/16 (150.81)
Speaker Dis.-cu. ft. (liter)	0.043 (1.22)	0.043 (1.22)	0.062 (1.76)	0.062 (1.76)
Sealed Box Vol.-cu. ft. (liter)	0.3 (8.5)	0.3 (8.5)	0.65 (18.41)	0.65 (18.41)
Vented Box Vol.-cu. ft. (liter)	0.625 (17.7)	0.625 (17.7)	1.25 (35.40)	1.25 (35.40)
Port Diameter & Length (in.)	(1) 2.5 x 13.5	(1) 2.5 x 13.5	(1) 3 x 7.3	(1) 3 x 7.3
Port Diameter & Length (cm)	(1) 6.35 x 34.29	(1) 6.35 x 34.29	(1) 7.62 x 18.54	(1) 7.62 x 18.54

Number of ports noted in ( )

Model - Punch DVC	P312D2	P312D4	P315D2	P315D4
Nominal Impedance (ohms) 2 (2) 4 (2) 2 (2) 4 (2)
Voice Coil Diameter-inch (mm)	2.5 (63.5)	2.5 (63.5)	2.5 (63.5)	2.5 (63.5)
FS (Hz)	25	26	22	23
QTS	0.398	0.456	0.489	0.546
VAS-cu.ft. (liter)	1.77 (50)	1.77 (50)	5.12 (145)	5.12 (145)
Xmax-inch (mm)	0.47 (12.0)	0.47 (12.0)	0.47 (12.0)	0.47 (12.0)
SPL (dB @ 1w/1m)	87.0	87.0	88.0	88.0
Power Handling (RMS)	500	500	500	500
Power Handling (Max)	1000 1000	1000 1000
Mounting Dia.-inch (mm)	10-13/16 (274.64)	10-13/16 (274.64)	13-13/16 (350.84)	13-13/16 (350.84)
Mounting Depth-inch (mm)	6-3/8 (161.93)	6-3/8 (161.93)	7-5/8 (193.68)	7-5/8 (193.68)
Speaker Dis.-cu. ft. (liter)	0.082 (2.32)	0.082 (2.32)	0.107 (3.03)	0.107 (3.03)
Sealed Box Vol.-cu. ft. (liter)	0.75 (21.24)	0.75 (21.24)	2.00 (56.63)	2.00 (56.63)
Vented Box Vol.-cu. ft. (liter)	1.75 (49.55)	1.75 (49.55)	2.50 (70.79)	2.50 (70.79)
Port Diameter & Length (in.)	(1) 4 x 11	(1) 4 x 11	(1) 4 x 9.4	(1) 4 x 9.4
Port Diameter & Length (cm)	(1) 10.16 x 27.94	(1) 10.16 x 27.94	(1) 10.16 x 23.88	(1) 10.16 x 23.88

Number of ports noted in ( )

Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms:

Length of Warranty

Source Units, Speakers, Signal Processors and PUNCH Amplifiers – 1 Year POWER Amplifiers – 2 Years Type RF Amplifiers – 3 Years Any Factory Refurbished Product – 90 days (receipt required)

What is Covered

This warranty applies only to Rockford Fosgate products sold to consumers by Authorized Rockford Fosgate Dealers in the United States of America or its possessions. Product purchased by consumers from an Authorized Rockford Fosgate Dealer in another country are covered only by that country's Distributor and not by Rockford Corporation.

Who is Covered

This warranty covers only the original purchaser of Rockford product purchased from an Authorized Rockford Fosgate Dealer in the United States. In order to receive service, the purchaser must provide Rockford with a copy of the receipt stating the customer name, dealer name, product purchased and date of purchase.

Products found to be defective during the warranty period will be repaired or replaced (with a product deemed to be equivalent) at Rockford's discretion.

What is Not Covered

1. Damage caused by accident, abuse, improper operations, water, theft, shipping
2. Any cost or expense related to the removal or reinstallation of product
3. Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center
4. Any product which has had the serial number defaced, altered, or removed
5. Subsequent damage to other components
6. Any product purchased outside the U.S.
7. Any product not purchased from an Authorized Rockford Fosgate Dealer

Limit on Implied Warranties

Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the period of the express warranty set forth above. Some states do not allow limitations on the length of an implied warranty, so this limitation may not apply. No person is authorized to assume for Rockford Fosgate any other liability in connection with the sale of the product.

How to Obtain Service

Contact the Authorized Rockford Fosgate Dealer you purchased this product from.

If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

EU Warranty

This product meets the current EU warranty requirements, see your Authorized dealer for details.

Ship to: Electronics

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe,AZ 85281

RA#:

Ship to: Speakers

Rockford Acoustic Design

Speaker Returns

3056 Walker Ridge Dr.

Walker, MI 49544

RA#:

Cher client,

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe,AZ 85281

RA#:

Rockford Acoustic Design

Speaker Returns

3056 Walker Ridge Dr.

Walker, MI 49544

RA# :

Estimado Cliente:

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe,AZ 85281

RA#:

Enviar a: Speakers

Rockford Acoustic Design

Speaker Returns

3056 Walker Ridge Dr.

Walker, MI 49544

RA#:

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe,AZ 85281

RA#:

Senden an: Speakers

Rockford Acoustic Design

Speaker Returns

3056 Walker Ridge Dr.

Walker, MI 49544

RA#:

Egregio cliente,

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe,AZ 85281

RA#:

Spedire a: Speakers

Rockford Acoustic Design

Speaker Returns

3056 Walker Ridge Dr.

Walker, MI 49544

RA#:

Rockford Fosgate®

Installation assistance available at:

RFTECH

www.rockfordfosgate.com/rftech

Rockford Fosgate

Rockford Corporation

546 South Rockford Drive

Tempe, Arizona 85281 U.S.A.

In U.S.A., [phone]

In Europe, Fax [phone]

In Japan, Fax [phone]

www.rockfordfosgate.com