User manual POLK AUDIO PA200.4

[. . . ] We recommend keeping your original carton and packing materials in case you need to ship the unit in the future. In the event that your amplifier requires service or is ever stolen, you will need to have a record of the product's serial number. Please take the time to enter that number in the space provided below. The serial number can be found on the bottom panel of the amplifier and on the amplifier packaging. [. . . ] â· Take steps to protect your car and upholstery from unwanted scratches and punctures. Take Inventory Check to ensure you have everything in your Polk Audio amplifier carton to start enjoying your system. Battery and ground connections to the vehicle should be made with crimped ring terminals of the appropriate size (surface area is what counts;) soldering the terminals after crimping is also recommended. Due to the high-frequency MOSFET switching power supply, filtering the power cable is not generally required (remember that the amp can't deliver full output if the power supply is restricted). Proper grounding of the signal source is mandatory for the amplifier to reach its performance peak. If the RCA inputs are not grounded adequately via the signal source, electrical noise from the vehicle may be picked up in the system. RCA Input Jacks--Accepts line level outputs from head units or signal processors at voltages between 250mV and 7. RCA Line Output Jacks--These pass-through RCA jacks can be used to send the input signal to a second amplifier. 5)--three positions: sum L/R--left front and rear and right front and rear channels are summed. Sub L+R--set the switch to this position when using an additional PA600. Sub 180--set the switch to this position when using an additional PA600. Gain Control--Controls the amplifier's sensitivity and is used to match the input level of the amplifier to the output level of the signal source (front and rear on PA500. Subsonic Switch--The OFF position takes the filter out of the system, the IN position places the filter into the system (PA1100. X-Over Selection Switch (HPF, Flat, LPF)-- The HPF attenuates low frequencies and is used with mid-range speakers and tweeters. Flat does not attenuate any frequencies and is for full range speaker systems. Remote--Optional accessory which allows the level to be adjusted remotely (usually located for control by the vehicle's driver). Status LED--Will illuminate GREEN to indicate the amplifier is on and operating normally, and will be illuminated RED if the amplifier shuts down due to short circuit, DC offset, or overheating detected by onboard protection circuitry. Remote--Controls the subwoofer amplifier gain, from a remote location for ease of adjustment during listening. Fuses--These fuses protect the amplifier against internal electrical damage and are meant to protect the amplifier only. (+) 12 Volt Power--Connect this terminal through a FUSE or CIRCUIT BREAKER to the positive terminal of the vehicle battery or the positive terminal of an isolated audio system battery. WARNING: Always protect this power wire by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection. Remote Turn On--This terminal turns on the amplifier when (+) 12 volt is applied to it. [. . . ] If this Product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. Be liable to you for any incidental or consequential damages arising out of the use or inability to use the Product, even if Polk Audio, Inc. Or a Polk Audio Authorized Dealer has been advised of the possibility of such damages, or for any claim by any other party. Some states do not allow the exclusion or limitation of consequential damages, so the above limitation and exclusion may not apply to you. [. . . ]