User manual KENWOOD KAC-6401 annexe 1

[. . . ] NOTE · If you experience problems during installation, consult your Kenwood dealer. · If the unit does not seem to be working right, consult your Kenwood dealer. 2 English Installation 330 mm 231 mm Ø4. 6 Self-tapping screw (ø4 × 16 mm) 227 mm 232 mm 242 mm Installation board, etc. (thickness : 15 mm or more) 2CAUTION · Do not install in the below locations; (Unstable location, In a location that interferes with driving, In a location that gets wet, In a dusty location, In a place that gets hot, In a place that gets direct sunlight, In a location that gets hit by hot air) · Do not install the unit under the carpet. Otherwise heat build-up occurs and the unit may be damaged. [. . . ] · After installing the unit, check to make sure that electrical equipment such as the brake lamps, turn signal lamps and windshield wipers operate normally. English 3 Controls / Indicator 5 40 30 20 10 (W) 1 2 3 4 5 1 FILTER switch (A. ch/B. ch) This switch allows to apply high-pass or low-pass filtering to the speaker outputs. 5 INPUT SENSITIVITY control (A. ch/B. ch) Set this control according to the pre-output level of the center unit connected with this unit, or to the maximum power output of the genuineaccessory car stereo. The sensitivities of amplifiers A and B can be adjusted independently regardless of the position of the input selector switch. Use the diagram on the right as a guide. NOTE For the pre-output level or the maximum power output, refer to the <Specifications> in the instruction manual of the center unit. · HPF (High-Pass Filter) position: The filter outputs the band of higher frequencies than the frequency set with the FILTER FREQUENCY control. · OFF position: The entire bandwidth is output without filtering. · LPF (Low-Pass Filter) position: The filter outputs the band of lower frequencies than the frequency set with the FILTER FREQUENCY control. 2 OPERATION switch (A. ch/B. ch) This switch is used to select the operation mode of the amplifier. · STEREO position: The amplifier can be used as a stereo amplifier. · MONO (Lch) position: Amplifies the signal input from the left side only. Set to this position and make bridged connections to use as a high-power monaural amplifier. (The input right signal is not output. ) 3 INPUT SELECTOR switch This switch selects the input method of the signals to be amplified by amplifiers A and B. · A B position: Amplifies both of the signals input to amplifiers A and B. · A position: Amplifies only signal input amplifier A with both amplifiers A and B. 4 FILTER FREQUENCY control (A. ch/B. ch) Sets the cutoff frequency when the FILTER switch is set to LPF or HPF. 4 English 6 6 Power indicator When the power is turned on, the Power indicator lights. If the Power indicator does not light when the power is turned on, the protection function may be activated. Check whether there is any indication of trouble. The protection function is activated in the following situations: This unit is equipped with a protection function for protecting this unit and your speakers from various accidents or problems that can occur. When the protection function is triggered, the Power indicator goes off and the amplifier stops operating. · When a speaker wire may be short-circuited. · When a speaker output contacts ground. · 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. · Be sure to install a protective fuse in the power cord near the battery. The protective fuse should be the same capacity as the unit's fuse capacity or somewhat larger. · For the power cord and ground, use a vehicle type (fireproof ) power wring cord with a current capacity greater than the unit's fuse capacity. (Use a power wiring cord with a diameter of 5 mm² (AWG 10) or greater. ) · When more than one power amplifier are going to be used, use a power supply wiring wire and protective fuse of greater current-handling capacity than the total maximum current drawn by each amplifier. To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery's positive terminal. 2CAUTION · If sound is not output normally, immediately turn power off and check connections. · Be sure to turn the power off before changing the setting of any switch. · If the fuse blows, check wires for shorts, then replace the fuse with one of the same rating. · Check that no unconnected wires or connectors are touching the car body. Do not remove caps from unconnected wires or connectors to prevent short circuits. [. . . ] slope Crossover Frequency 0 dB -3 dB L C Coil (L): Passes low frequencies and blocks high frequencies. (Low pass) Capacitor (C): Passes high frequencies and blocks low frequencies. (High pass) C= L= 159000 (µF) fc x R 159 x R (mH) fc fc=Cut of Frequency (Hz) R=Speaker Impedance () Frequency Example: When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms. Prepare commercially-available coil and capacitor with the closest ratings to the results calculated from the formula above. [. . . ]