User manual KENWOOD KAC-525

[. . . ] They can scratch the surface of the panel and/or cause the indicator letters to peel off. To prevent battery rise When the unit is used in the ACC ON position without turning the engine ON, it depletes the battery. Use it after starting the engine. 2CAUTION To prevent damage to the machine, take the following precautions: Protection function There is a Protection function installed in the unit to protect the unit and speakers from various problems. Display "E-01" Informations When the inside of the unit is overheating. When the unit has failed and direct current voltage is generated to the speaker's output. NOTE · Be sure the unit is connected to a 12V DC power supply with a negative ground connection. [. . . ] · After installation, check that the brake lamps, winkers, and wipers work properly. B channel input A channel input Power control wire A channel Right speaker A channel Left speaker B channel Right speaker B channel Left speaker B channel Speaker (Bridged) Controls This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to as amplifier A and the other is amplifier B. This unit is compatible with a large variety of systems by combining the switches and functions described in the following. # Power indicator Lights when the POWER switch is turned On. The indicator flashes several seconds when the POWER switch is turned On or when the Protection function is activated. 1 Fuse (30 A × 2) 2 Battery terminal 3 Ground terminal 4 Power control terminal Controls the unit ON/OFF. NOTE $ HPF FREQUENCY control (A. ch/B. ch) % LPF FREQUENCY control (B. ch) A: Sets the cutoff frequency when the "HPF" switch is set to "ON". B: Sets the cutoff frequency when the "FILTER" switch is set to "HPF". Sets the cutoff frequency when the "FILTER" switch is set to "LPF". ^ FILTER switch (B. ch) Controls the unit power. Be sure to connect it with all the systems. This switch allows to apply high-pass or low-pass filtering to the speaker outputs. 5 Speaker output terminals (A. ch/B. ch) · Stereo Connections: · HPF (High-Pass Filter) position: When you wish to use the unit as a stereo amplifier, stereo connections are used. The speakers to be connected should have an impedance of 2 or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2 or greater for each channel. When you wish to use the unit as a high-output monaural amplifier, bridged connections are used. (Make connections to the LEFT channel 9 and the RIGHT channel · SPEAKER OUTPUT terminals. ) The speakers to be connected should have an impedance of 4 or greater. Display Informations "AMP × E-01"/"AMP × COND E-01" When the inside of the unit is overheating. When the unit has failed and direct current voltage is generated to the speaker's output. "AMP × E-02"/"AMP × COND E-02" NOTE Turn the POWER switch Off and release the protection. If the error message continues, consult to the KENWOOD's dealership. "AMP × E-03"/"AMP × COND E-03" "AMP OFF" NOTE 1 Enter AMP Control mode Select the AMP Control mode by following the 'AMP Control' procedure given on the Operation Manual of the Center Unit. NOTE Use the set item and value operation buttons by following the instructions given on the Operation Manual of the Center Unit. 2 Select an amp number to operate Operate the desired set item with the Center Unit. Select the "AMP NO"/"AMP CONTROL NO" display. NOTE When the speaker cord is shorted. When you use the Amp Control in the Standby mode. When the Center Unit is in the STANDBY mode, message "AMP OFF" is displayed and you cannot operate the set items. Number "×" on the display indicates the amp's ID number. 3 Set an ID number of Amp to operate Set an amp's ID number on the Center Unit. You can select an ID number of "0" to "7" of connected amps. 4 Select the AMP Control item for adjustment Select the desired set item on the Center Unit. 5 Adjust the AMP Control item You can set a value of each item on the Center Unit. Display Range "VOLT"/"CURR"/"TEMP"/"FAN" "VOLT" "CURR" "TEMP" "FAN" "BAS F"/"BASS FREQ" "BAS G"/"BASS GAIN" "Q FA"/"Q FACTOR" "EXT"/"BASS EXT" "TRE F"/"TREB FREQ" "TRE G"/"TREB GAIN" "VOL"/"VOL OFFSET" "AMP NO"/ "AMP CONTROL NO" Adjustment Item The amp state is displayed. Indicates the rotation speed of the cooling fan in 3 steps: "FAST", "SLOW" or "OFF". 60/80/100/200 (Hz) Bass Center Frequency ­15 -- +15 (dB) Bass level Q1. 00/Q1. 25/Q1. 50/Q2. 00 Bass Q Factor ON/OFF When the bass extend is set to ON, low frequency response is extended by 20%. [. . . ] 50 ­ 200 Hz (variable) High Pass Filter Frequency (12 dB/oct. ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 ­ 200 Hz (variable) Infrasonic Filter Frequency (24 dB/oct. ) (B channel). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Hz Frequency Response (+0, ­3 dB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Hz ­ 70 kHz Sensitivity (rated output) (MAX. ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 2 V Sensitivity (rated output) (MIN. ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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