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KAC-816
MONO POWER AMPLIFIER
INSTRUCTION MANUAL
© PRINTED IN MEXICO B64-1170-00 (EM)
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Safety precautions •Do not open the top or bottom cover. 2WARNING •Do not install the unit in places it is Take the following precautions to exposed to direct sunlight, high heat or prevent fire and avoid personal humidity, water may splash over it, or dust exists. injury : •When extending the battery cable, or NOTE 2 ground cable, use 5mm (AWG10) or larger automotive grade cable to avoid If you have difficulty in installing this unit cable deterioration or damage to the in your vehicle, contact
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Installation procedure 1. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. 2. Set the unit according to the intended usage. 3. Connect the input and output cables of the units. 4. Connect the center unit and this unit according to the required application. 5. Connect the speaker cables and sigma servo feed back cables. 6. Connect the power cable, power control cable and grounding cable following this order. 7. Install the unit in the car.
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Controls Operations of the following control and switches are required in accordance with the center unit and speakers connected with this unit. FUSE(20A) POWER IN SERVO ∑ SPEAKER OUTPUT SERVO ∑ BATT GND 20 P.CON(REMOTE) FUSE(20A) 20 45 6 1 2 3 SPEAKER LEVEL INPUT 15Hz LPF INPUT OFF 25Hz LEFT RIGHT FREQUENCY(Hz) SENSITIVITY(V) LINE IN 0.5 L R 150 INFRASONIC 100 0.3 1 70 GND 2 MONO 3 4 POWER AMPLIFIER 50 200 50.2 7 8 9 0 ! @ 1 FUSE (20 A 2) 2 Battery terminal 3 Ground terminal 4 Power
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0 RCA cable ground lead terminal ! LINE IN terminal @ Speaker level input terminals Power indicator Power indicator: When the power is turned on, the Power indicator lights. Power indicator 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 sp
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Connection RCA cable connection 2CAUTION Left output (White) CENTER UNIT Do not connect cables and (Cassette receiver, leads to both RCA cable input CD receiver, etc.) jacks and the speaker input Right output (Red) terminals simultaneously, for RCA cable this may cause malfunction (Commercially Power control cable or damage. available part) (Commercially available part) Right input Left input SPEAKER LEVEL INPUT 15Hz LPF INPUT OFF 25Hz LINE IN LEFT RIGHT FREQUENCY(Hz) SENSITIVITY(V) 0.5 R 150
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Power and Speakers cable connection Subwoofer Distribute the speaker cables and Power control cable sigma servo cables along the same paths. FUSE(20A) POWER IN SERVO ∑ SPEAKER OUTPUT SPEAKER OUTPUT SERVO ∑ BATT GND 20 P.CON(REMOTE) FUSE(20A) 20 Power control Terminal cover (REMOTE) lead terminal Battery cable (Yellow) Ground cable (Black) • 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 cable. • D
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Sigma servo feed back The sound reproduced through conventional amplifiers is distorted due to the counterelectromotive force produced in the oscillating system of the speaker. The counterelectromotive force is particularly high with the woofer which requires a large drive mass.The sigma servo connection reduces distortion caused by the counterelectromotive force by including the circuit up to the speaker terminals in the negative feedback loop. This makes it possible to drive speakers with mor
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Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. PROBLEM POSSIBLE CAUSE SOLUTION No sound. • Input (or output) cables are • Connect the input (or output) (No sound from one side.) disconnected. cables. • The connection of the sigma • Check the connection referring servo terminals is wrong. to "Sigma servo feed back". • Protection circu
