Introduction KX.2 Series Amplifier Owner’s Manual Two Channel Models: 2 KX350.2 / KX450.2 / KX550.2 / KX850.2 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. Remote Bass Level Control Dash or center console mountable for remote fine-tuning of bass output. SORT Protection Circuitry (Short circuit, Over-voltage, Reverse polarity, Thermal) Protects amplifier from accidents and undesirable operation. EndKaps Cast aluminum, custom, removable covers to protect and hide all your wiring connections to the amplifier. Can be prepped and painted any custom color you choose.
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. Connecting to the amp with either input connection will provide a low level signal at the output (PAST) RCA jacks.
Installation Remote Bass Level USING THE SIGNAL OUTPUT JACKS (PAST) When the crossover on your KX series amplifier is set to LOW PASS, you have the ability to control the output level of the amplifier from the driver’s seat using the supplied Remote Bass Level Control. The Output (Pre Amp Signal Transfer) RCA jacks allow you to send the incoming signal from one Kicker KX series amplifier to another amplifier or processor without the need for Y cables.
Installation System Diagram The following diagrams show the most common configurations for your Kicker KX series amplifier. TWO CHANNEL OPERATION (STEREO) KX.2 series amplifiers are capable of operating into a minimum impedance of 2 ohms per channel in stereo operation. GROUND RIGHT SPEAKER(S) _ REMOTE TURN-ON R+ SIGNAL OUT 18" SIGNAL IN or less +12V BATTERY + R- _ + LL+ FUSE LEFT SPEAKER(S) BRIDGED OPERATION (MONO) KX.
Installation System Diagram STEREO AND MONO SIMULTANEOUSLY (SAMS) KX.2 series amplifiers are capable of operating into a minimum impedance of 4 ohms mono and 2 ohm stereo simultaneously with the use of passive crossovers.
On your Kicker amplifier there are three rotary controls on top and one switch 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 SWITCH SETTING WITH THE SYSTEM ON! The switch located on the end panel next to the RCA jacks is for setting the internal crossover. In the OFF position the amplifier passes a full range signal to the speakers. Use the LO position when connected to a subwoofer.
Troubleshooting Help If your amplifier does not appear to be working, check 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.
Trouble Shooting CAUTION: When jump starting the vehicle, be sure that connections made with jumper cables are correct. Improper connections can result in blown amplifier fuses as well as failure in other systems in the vehicle. Please Note: Modern high performance speakers have a lower DC Resistance than what used to be available.
Specifications Performance Model KX350.2 KX450.2 KX550.2 KX850.2 RMS Power in Watts, All Channels Driven @ 14.4V, 4Ω Stereo, < 1% THD+N @ 2Ω Stereo, < 1% THD+N @ 4Ω Mono, < 1% THD+N @ 12.5V, 4Ω Stereo, 0.085% THD+N @ 2Ω Stereo, 0.5% THD+N @ 4Ω Mono, 0.5% THD+N 110 x 2 175 x 2 350 70 x 2 135 x 2 265 150 x 2 225 x 2 450 90 x 2 180 x 2 360 205 x 2 275 x 2 550 115 x 2 230 x 2 420 295 425 850 180 360 650 Length With EndKaps 16” (40.64cm) 19.25” (48.90cm) 22.5” (57.15cm) 25.75” (65.
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 Tech Lines Notes 14 KX AMPLIFIERS
Hookups Notes Pizza Delivery #’s KX AMPLIFIERS 15