Introduction KX.3 & KX.5 Amplifier Owner’s Manual KX550.3 / KX700.5 Multi Channel Amplifiers with a Class D Subwoofer Channel: 2 Attention: Congratulations! Please record your purchase information in the area below. We recommend attaching the original sales receipt to this manual for future reference. If you require service on this speaker during the warranty period, you will need to provide this information and a copy of the original sales receipt to Kicker for validation of warranty repairs.
Low Impedance Operation Class A/B stable into 2 ohm stereo or 4 ohm mono loads. Class D section stable into 4 or 2 Ohm Mono. Class D Amplification Used in the subwoofer channel for high efficiency. SORT Protection Circuitry (Short circuit, Over-voltage, Reverse polarity, Thermal) Protects amplifier from accidents and undesirable operation. Features Features Remote Bass Level Control Dash or center console mountable for remote fine-tuning of bass output.
Installation Mounting When selecting a location to mount your Kicker amplifier be sure it is structurally sound and that there are no items behind the area where the screws will be driven that could be damaged. Check for wire harnesses, brake lines, fuel lines, gas tanks, etc. All amplifiers generate heat under normal operation. Be sure to choose a location that allows adequate ventilation for the amplifier.
Signal can be input into the amplifier using either the low level RCA input connections or the high level (speaker level) input connections. Using the low level RCA connections is the preferred method. Use the high level inputs only if your source unit does not have low level RCA type outputs. Speaker Level Outputs KX550.3 Wiring When using both sets of High Level inputs on the KX700.5, the supplied RCA dummy plugs must be inserted into the AMP 2 inputs in order for the fader to work properly.
Installation The ground should be connected to the amplifier first before making any of the other connections. This wire should be as short as possible (24 inches or less) and connected to a paintand corrosion-free solid metal area of the car’s chassis. Use the same gauge wire as recommended for the amplifier’s power connection to the battery. Adding an additional ground wire between the car battery’s negative post and the car chassis of this same gauge (or larger) is also recommended.
Installation System Diagrams The following diagrams show the most common configurations for your Kicker KX series system. Stereo Operation with Subwoofer These KX amplifiers are capable of operating into a minimum impedance of 2 ohms per channel in stereo operation and 2 ohm mono on the subwoofer channel. Modern high performance speakers have a lower DC Resistance than what used to be available.
Installation System Diagrams All Channels Bridged The KX700.5 is capable of bridged operation on AMP 1 and AMP 2. This, for example, would allow you to bridge AMP 1 to run the Right side and AMP 2 to run the Left side. You will need to use 2 RCA Y-Adapters for this configuration. Remember AMP 1 and AMP 2 are only stable down to 4 ohm in this configuration. SUB KX700.
On your Kicker amplifier there are five (seven on the KX700.5) rotary controls on top and one (two on the KX700.5) switch(es) on the end panel. These controls ensure the reliability and performance of the amplifier, so they need to be set correctly. CROSSOVER SWITCH NEVER CHANGE THE CROSSOVER “OFF/HI” SWITCH SETTING WITH THE AUDIO SYSTEM ON! The crossover switch located on the end panel next to the RCA jacks is for setting the internal crossover for the Class A/B audio channels.
Specification Performance Specifications common to all models: Model KX550.3 KX700.5 RMS Power In Watts, All Channels Driven @ 14.4V, 4Ω Stereo, < 1% THD+N @ 2Ω Stereo, < 1% THD+N 10.125 inches / 25.7 centimeters Length w/o EndKaps: Subtract 5” / 12.
If your amplifier does not appear to be working, check the obvious things first such as blown fuses, poor or incorrect wiring connections, incorrect setting of crossover switch and gain controls, etc. There are two LEDs on the end panel of your Kicker KX series amplifier, one green and one red. When the green LED is lit this indicates the amplifier is turned on and no trouble exists. If the green LED turns off and the red LED is lit, this indicates that the protection circuitry (SORT) is engaged.
Trouble Shooting Help Alternator noise--whining sound with engine’s RPM: Check for damaged RCA cables. Check the routing of RCA cables. Check the source unit for proper grounding. Check the gain settings, and turn them down if they are set too high. Poor stereo image or reduced bass response: Check system phasing by turning the balance control from left to right.
Kicker warrants this product to be free from defects in material and workmanship under normal use for a period of THREE (3) MONTHS from date of original purchase with receipt. When purchased from a Authorized KICKER Dealer it is warranted for TWO (2) YEARS from date of original purchase with receipt.
Notes Notes 14 KX Amplifiers
Notes Pizza Delivery #’s KX Amplifiers 15
