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 Rockford Fosgate in your installation. Rockford Fosgate has everything from RCA cables and speaker wire to power wire 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 to jackets. To get a free brochure on Rockford Fosgate products and Rockford accessories, visit our web site at: or, in the U.S. call 1-800-669-9899 or FAX 1-800-398-3985. For all other countries, call +001-480-967-3565 or FAX +001-480-966-3983. 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 unit if it is ever stolen. Serial Number: ______________________________________ Model Number: _____________________________________ TABLE OF CONTENTS Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Instructions . . . . . . . . . . . . . . . . . . . 3 Design Features . . . . . . . . . . . . . . . . . . . . 4-5 Installation . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Installation Considerations. . . . . . . . . . . . . . 5 Mounting Locations. . . . . . . . . . . . . . . . . . . . 6 Battery and Charging . . . . . . . . . . . . . . . . . . 7 Wiring the System. . . . . . . . . . . . . . . . . . . . . 7 Operation. . . . . . . . . . . . . . . . . . . . . . . . 9-12 Remote Punch EQ (Option). . . . . . . . . . . . . 9 Adjusting Gain. . . . . . . . . . . . . . . . . . . . . . . 10 Adjusting Crossover Frequency . . . . . . . . . 10 Infrasonic Filter . . . . . . . . . . . . . . . . . . . . . . 10 Mode Switch . . . . . . . . . . . . . . . . . . . . . . . . 10 Phase Switch . . . . . . . . . . . . . . . . . . . . . . . . 10 Troubleshooting. . . . . . . . . . . . . . . . . . . . . 13 Specifications. . . . . . . . . . . . . . . . . . . . . . . 14 Limited Warranty Information . . . . . . . . 15 NOTE: Review each section for more detailed information. 2009 Rockford Corporation.All rights reserved. Rockford Fosgate, the Rockford Fosgate logo, and the PUNCH logo are either registered trademarks or trademarks of Rockford Corporation. 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 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. 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 A Power T2500-1bd Mono Amplifier Mounting Hardware Kit Installation & Operation Manual 4mm Allen wrench for power and speaker terminals The hardware kit included with each amplifier contains the mounting hardware necessary to secure the amplifier to the vehicle. Visit our web site for the latest information on all Rockford products. DESIGN FEATURES 1. Power LED (Top of unit) – This Blue LED illuminates when the unit is turned on. 2. Thermal LED (Top of unit) – This Red LED ill...