Kenwood KAC-746 Instruction Manual

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Contents

9SpecificationsSpecifications subject to change without notice.Audio SectionMax Power Output (4 Ω)4 Channel Mode ..........................................................................................................70 W × 43 Channel Mode ....................................................................................70 W × 2 + 200 W × 12 Channel Mode ........................................................................................................200 W × 2Rated Power Output (4 Ω)4 Channel Mode ..................................................................35 W × 4 (DIN45324, +B=14.4 V)3 Channel Mode) ..................35 W × 2 (1 kHz, 0.08 % THD) + 100 W × 1 (1 kHz, 0.8 % THD2 Channel Mode........................................................................100 W × 2 (1 kHz, 0.8 % THD)Rated Power Output (2 Ω)4 Channel Mode..........................................................................50 W × 4 (1 kHz, 0.8 % THD)Frequency Response (+0, –1 dB) ............................................................................5 Hz ~ 50 kHzSignal to Noise Ratio............................................................................................................100 dBSensitivity (MAX) (rated output) ............................................................................................0.15 VSensitivity (MIN) (rated output) ..............................................................................................4.0 VInput Impedance....................................................................................................................10 kΩLow Pass Filter (12 dB/oct.) (Variable) ........................................................................50 ~ 200 HzHigh Pass Filter (12 dB/oct.) (Variable) ........................................................................50 ~ 200 HzGeneralOperating Voltage ..............................................................................14.4 V (11 ~ 16 V allowable)Current Consumption (1 kHz, 10% THD) ................................................................................28 ADimensions (W × H × D) ................................................................................290 × 52 × 230 mmWeight ..................................................................................................................................3.1 kgTroubleshooting guideOften, what appears to be a malfunction is due to user error. Beforecalling for service, please consult the following table.SymptomCauseRemedyNo sound.(No sound from one side.)The output level is toosmall (or too large).The sound quality is bad.(The sound is distorted.)• Input (or output) cables aredisconnected.• Protection circuit may beactivated.• The fuse may be blownbecause the volume was toohigh.The input sensitivity adjustingcontrol is not set to the correctposition.• The speakers cable areconnected with wrong + / -polarity.• A speaker cable is pinched by ascrew in the car body.• The switches may be setimproperly.• Connect the input (or output)cables.• Check connections by referringto "Protection function".• Replace the fuse with a newfuse and use a lower volume.Adjust the control correctlyreferring to “Controls”.• Connect them properly checkingthe + / - of the terminals andcables well.• Connect the speaker cable againso that it is not pinched byanything.• Set switches properly byreferring to "Controls" and"System examples".

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