User manual KENWOOD KAC-PS300T

[. . . ] Model KAC-X650D/PS650D Serial number If the front panel gets dirty, turn off the power and wipe the panel with a dry silicon cloth or soft cloth. To prevent injury or fire, take the following precautions: · When extending the ignition, battery, or ground wires, make sure to use automotivegrade wires or other wires with a 8mm2 (AWG8) or more to prevent wire deterioration and damage to the wire coating. To prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit. If the unit starts to emit smoke or strange smells, turn off the power immediately and consult your Kenwood dealer. [. . . ] The unit is a 5-channel amplifier incorporating 2 stereo amplifiers and 1 monaural amplifier in a single body. The stereo amplifier on one side is called amplifier A, while the one on the other side is amplifier B. the monaural amplifier is called the amplifier SUB. This unit is compatible with a large variety of systems by combining the switches and functions described in the following. The filter outputs the band of higher frequencies than the frequency set with the HPF FREQUENCY control. The entire bandwidth is output without filtering. The filter outputs the band of lower frequencies than the frequency set with the LPF FREQUENCY control. Adjust this control according to the pre-out level of the center unit connected to this amplifier. Refer to "Specifications" on the center unit's instruction manual about the pre-out level. This switch is used to select the operation mode of the amplifier. This setting is valid for both the amplifier A and B. When multiple speakers are to be connected, ensure that the combined impedance is 2 or greater for each channel. When using an RCA cable with a ground lead attached, connect the ground lead to this terminal. Be sure to connect it with all the systems. Only Kenwood center unit models sold in 1999 or later with a "EXT. Also, a maximum of 3 power amplifiers can be operated at the same time. When you wish to use the unit as a highoutput monaural amplifier, bridged connections are used. When multiple speakers are to be connected, ensure that the combined impedance is 4 or greater. There are cases when operation may not be possible due to wiring wire type and length. The rated input of the speakers should be no less than the maximum output of the amplifier. As this unit accepts speakers with a minimum impedance of 2 ohms, connect speakers with 2-ohm or higher impedance to these terminals. Since there are large variety of settings and connections possible according to applications, read the instruction manual well to select the proper setting and connection. [. . . ] If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter (optional) to each of the battery wire. Do not allow the wire to directly contact the edge of the iron plate by using Grommets. Connect the ground wire to a metal part of the car chassis that acts as an electrical ground passing electricity to the battery`s negative - terminal. Do not turn the power on if the ground wire is not connected. [. . . ]