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| Punch® Amplifiers |
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450 Watt 4-Channel Amplifier
Equally at home powering two pairs of coaxials/component speakers or one pair of speakers and a 4-ohm SVC subwoofer, the P450.4 is an excellent amplifier choice for virtually any vehicle. A super easy way to add the PUNCH to your system!
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US $299.99 |
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4 Gauge power/ground connections with built-in ATC fusing |
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Aux Ouputs |
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Connector Cover |
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Focused mass heatsink design |
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Infrasonic filter |
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Stealth Connections |
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Thermal Sensing |
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Top Mounted LED Indicators |
| Differential Inputs |
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Differential inputs eliminate noise picked up by signal cables.
read more... |
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| MEHSA |
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Rockford Fosgate amps use MEHSA, a thermal substrate that maximizes heat transfer between MOSFET power devices and heat-sink. The MEHSA substrate is so efficient at reducing MOSFET temperatures, it lowers distortion, increases durability and results in a prolonged life span.
read more... |
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| NOMAD |
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NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.
read more... |
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| Punch Bass EQ |
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Pioneered by Jim Fosgate in the early 70's, Punch Bass compensates for acoustical problems common in all cars.
read more... |
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| Rockford Fosgate Avatar |
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These Avatars are a personal signature from the Rockford Fosgate team member who designed and engineered this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.
read more... |
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| TO-247 MOSFETs |
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(left-OLD | right-NEW)
Rockford Fosgate amps use custom TO-247 MOSFETs. These have 60% more metal tab area for more power capacity, lower impedance and improved heat dissipation over traditional TO-220 MOSFETs found in competitor amps.
read more... |
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| TRANS•ana |
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| U.S. Patent (4,467,288) |
Trans•ana simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality.
read more... |
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| Description |
Value |
| CEA-2006 Compliant |
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| Number of Channels |
4 |
Rated Power
continuous power |
60W x 4 @ 4-Ohms RMS
110W x 4 @ 2-Ohms RMS
225W x 2 @ 4-Ohms bridged RMS |
Total Power
total sum of 'rated power' |
450 Watts |
| Bridgeable |
Yes |
| Crossover Controls |
High-Pass (HP): 40-400Hz 12dB/octave Butterworth
Low-Pass (LP): 40-400Hz 12dB/octave Butterworth |
| Tone Controls |
Bass: 0dB to +18dB @ 45Hz |
| Signal Input |
Low level: 2 RCA pair
Input switch: 2/4 ch. |
| Signal Output |
Low level: 1 RCA pair |
| Power Input Connector |
Block |
| Power Wire Gauge |
4 AWG |
| Speaker Output Connector |
Screw terminal barrier strip |
| Speaker Wire Gauge |
8 AWG to 18 AWG |
| Heat Sink Type |
Cast aluminum |
| Cooling |
Convection |
| Remote Controls |
Punch Bass EQ (included with cable) |
| Visual Indicators |
Power On
Signal Level
Thermal Status
Speaker Protection |
| Circuit Topology Class |
Class A/B |
| Frequency Response |
20Hz to 20kHz +/- 0.5 dB |
| Shipping Weight |
17.5 Lbs.
(7.9 Kg.) |
| Dimensions (HxWxL) |
2.1 x 11 x 16.4 (in)
5.3 x 27.9 x 41.6 (cm) |
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Specifications subject to change without notice
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CONSUMER
LIMITED WARRANTY INFORMATION |
| Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms: |
Length of Warranty (U.S.A.)
• Standard Warrany - 1 Year
• Extended Warranty - 1 Additional Year (2 Years Total)
(see extended warranty below)
• Factory Refurbished Warranty - 90 Days
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Length of Warranty (World Wide)
Warranties vary by country. Please contact your local Authorized Distributor for further terms & conditions.
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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.
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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.
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| Products found to be defective during the warranty period will be repaired or replaced
(with a product deemed to be equivalent) at Rockford Fosgate's discretion. |
What is Not Covered
- Damage caused by accident, abuse, improper operations, water, theft, shipping.
- Any cost or expense related to the removal or reinstallation of product.
- Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center.
- Any product which has had the serial number defaced, altered, or removed.
- Subsequent damage to other components.
- Any product purchased outside the U.S.
- Any product not purchased from an Authorized Rockford Fosgate Dealer.
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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.
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How to Obtain Service (See Return Authorization Process)
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.
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EU Warranty
This product meets the current EU warranty requirements, see your Authorized Distributor for details.
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| EXTENDED WARRANTY |
This amplifier qualifies for a FREE one-year extended warranty when you buy the correctly matched Rockford Fosgate Amplifier Installation Kit.
How it Works
We want you to get the performance and reliability that Rockford Fosgate Amplifiers are famous for. Using poor-quality (under-spec) wiring is a guaranteed way to get less than you paid for from your system.
We are so certain that getting your system wired to rock with the right wire and cables will make a difference, that we will give you an additional (1) year warranty on your amp when you use the matching amplifier installation kit.
One (1) warranty extension per amplifier regardless of the number of amplifier installation kits purchased.
What To Do
Cut the UPC code off the amplifier installation kit package. Attach it to your amplifier PVC (Performance Verification Certificate). There is nothing to send in or register. If your amplifier requires service during the extended warranty period, simply return it with the original PVC and amplifier kit UPC to your authorized Rockford Fosgate dealer. Contact Rockford Fosgate customer support for assistance. |
What Kits Qualify?
• View list of qualifying amp installation kits |
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| Return Authorization Process |
Diagnose First
Prior to requesting an RA, try to diagnose the failure. Many products we receive are sent back with No Trouble Found, usually due to incorrect installation. Use our RFTECH:Knowledge Base for troubleshooting assistance.
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Contact Customer Support
Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information:
- Your Name and Shipping Information
- Product Name (P450.4)
- Serial Number (13 digit number)
- Failure Diagnosis (no output, no power LED, etc. )
- Copy of Original Receipt (required for warranty claims)
- Credit Card (if paying in advance for out-of-warranty claims)
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Shipping Instructions
When shipping your product, your package MUST have the following information:
- RA# Printed Outside of Box (as large as possible)
- Copy of Original Receipt
- Money Order Taped to Bottom of Product (if credit card not supplied during RA process)
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Shipping Address
Ship your product (UPS or FedEx preferred) to the following:
| »Shipping Electronics: |
»Shipping Speakers: |
Rockford Corporation
Amplifier Warranty Department
955 North Fiesta Boulevard
Suite #4
Gilbert, AZ 85233
RA#:_______________________ |
Rockford Corporation
Speaker Warranty Department
955 North Fiesta Boulevard
Suite #4
Gilbert, AZ 85233
RA#:___________________
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| Knowledge Base Articles |
Updated |
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| Customer Discussion Forums |
Updated |
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| CP4CKDS |
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| 4 AWG Deluxe complete installation kit |
| MSRP $129.99 |
| read more... |
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| CPPBCMOP |
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| Platinum Plated Posi-Clamp, positive terminal |
| MSRP $39.99 |
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| CPC05-03 |
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| 0.5 Farad - 20 volt Surge Capacitor |
| MSRP $149.99 |
| read more... |
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If you're installing this Rockford Fosgate product into a factory sound system,
you can tap into your vehicle wiring to retain OEM features.
Our authorized partners & adapters below will simplify
your aftermarket integration. |
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| CPAULOC |
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| Adjustable Line Output Converter |
| MSRP $29.99 |
| read more... |
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| 3SIXTY.1 |
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| Interactive Signal Processor & OEM Interface (Patent Pending) |
| MSRP $399.99 |
| read more... |
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| 3SIXTY.2 |
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| Advanced Interactive Signal Processor & OEM Interface (Patent Pending) |
| MSRP $699.99 |
| read more... |
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Installation Excellence
Get exhaustive information on your particular vehicle to help you install mobile electronics into your car or modify your car with performance parts - all at your convenience.
www.installationexcellence.com |
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| Compatible Woofer Configurations |
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| The below woofer wiring diagrams are compatible with this amplifier and are designed to optimize power output. The diagrams were selected simply by choosing woofer configurations that match the amplifier's recommended speaker load. Care should be taken to select woofers that can safely handle the amplifier's RMS power output. |
| For more information, refer to our Glossary definitions for Ohm and Impedance. |
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The below diagrams optimize the REAR CHANNELS of this amp for its lowest recommended BRIDGED/MONO load. |
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This allows FRONT channels to run STEREO speakers while REAR channels run WOOFERS. |
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| 4Ω Amp Load Diagrams |
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600 S. Rockford Drive, Tempe,
AZ 85281 - U.S.A. |
© 2010 Rockford Corp. All rights reserved. |
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