User manual POLK AUDIO C400.4 CARBON

[. . . ] For over thirty years, George Klopfer and I, and all the people at Polk Audio, have been designing and building sound equipment for people like you: the person who demands high quality and outstanding performance at a reasonable price. (Someone just like US , in other words!) Please take a moment and read through this manual before you get started. installing a car audio system is a serious project. [. . . ] Measure enough wire to reach from your amplifier to each speaker or inline crossover, plus an additional 12" to allow moving the speakers or equipment without having to disconnect the wires. FIND a good solid metal grounding point close to the amplifier and connect the negative power wire to it. For the ground connection, also use the largest gauge cable available. Connect to the terminal marked GND and then connect this cable directly to your car's chassis. Keep the length of the GND connection as short as possible, ideally under 6", to avoid ground loops and engine noise hum problems. Make certain that the ground point is directly connected to the car's metal chassis, with no dirt or paint getting in the way of a clean metal-to-metal connection. Take the time to secure the amplifier solidly so that it does not come loose in the event of a collision or sudden jolt to the vehicle. A fuse near the amplifier is not necessary. Make sure to use speaker wire of at least 16 gauge or thicker. be certain to maintain correct polarity. One of the terminals on the rear of your speaker is positive (+) and the other is negative (-). Make certain that you connect the wire from the positive (+) terminal of your amplifier to the positive (+) terminal on your speaker, and the wire from the negative (-) terminal of your amplifier to the negative (-) terminal on your speaker. Most speaker wire has some indicator (color code, ribbing, or printing) on one of the two wires to help you maintain consistency. Make certain that no bare wire ends touch each other. Such contact could result in an electrical short and cause your head unit or amplifier to turn off or malfunction. Carefully review the amplifier's control settings to make sure that they are set according to the needs of your system. Now install the power wire fuse and reconnect the negative battery post terminal. (See your authorized Polk AutoSound Dealer for professional advice on fuses and circuit breakers. Turn on the head unit at low level to check that the amplifier is configured correctly. --to crank it up until you have verified the control settings and made your fine tunings. Make the necessary adjustments to the input sensitivity to obtain the right overall output and the desired balance between the two pairs of channels and other amps in your system. For Flush Mount installations (where amp sits directly on solid surface), route wiring through side vents of end caps BEFORE wiring into the amp. [. . . ] This warranty will terminate automatically prior to its stated expiration if the original retail purchaser sells or transfers the Product to any other party. , warrants, to the original retail purchaser only, that the LOUDSPEAKER(S), PASSIVE CROSSOVER COMPONENT(S) and ENCLOSURE on this Polk Audio Loudspeaker Product will be free from defects in material and workmanship for a period of one (1) year from the date of original retail purchase from a Polk Audio Authorized Dealer. , warrants, to the original retail purchaser only, that any AMPLIFIER OR OTHER ELECTRONIC COMPONENT will be free from defects in material and workmanship for a period of one (1) year (extended to two years when professionally installed) from the date of original retail purchase from a Polk Audio Authorized Dealer. To allow Polk Audio to offer the best possible warranty service, please register your new product online at: www. [. . . ]