Instruction/ maintenance manual of the product KAC-746 Kenwood
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KAC-746 4-CHANNEL POWER AMPLIFIER INSTRUCTION MANUAL © B64-1176-00 (EM).
2 Safety precautions T ake the following precautions to prevent fire and avoid personal injury : • When extending the battery cable, or ground cable, use 5mm 2 (A WG10) or larger automotive grade cable to avoid cable deterioration or damage to the covering.
3 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 speaker cables.
4 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.
5 • STEREO position: The amplifier can be used as a stereo amplifier . • L+R position: The input left and right signals are combined before being amplified. Use this position when the unit is used for subwoofer speakers or the L+R (monaural) sound is required.
• The genuine-accessory car stereo shall have a maximum power output of no more than 25 W. • Do not connect the speaker output leads from a power amplifier (Optional) to the speaker input terminals of this unit, for this may cause malfunction or damage.
7 A B A B SPEAKER LEVEL INPUT R L LEFT RIGHT SPEAKER LEVEL INPUT LEFT BRIDGED RIGHT A B A B SPEAKER OUTPUT BRIDGED R L POWER IN FUSE(30A) BATT P.CON(REMOTE) GND - + ■ Power and Speakers cable connec.
8 System examples ● Principle of T ri-mode Method of frequency band division using a coil and capacitor•••in case of 6dB/oct. slope L C 0 dB -3 dB Coil (L): Passes low frequencies and blocks high frequencies. (Low pass) Capacitor (C): Passes high frequencies and blocks low frequencies.
9 Specifications Specifications subject to change without notice. Audio Section Max Power Output (4 Ω ) 4 Channel Mode ..........................................................................................................70 W × 4 3 Channel Mode .
An important point after buying a device Kenwood KAC-746 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kenwood KAC-746 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kenwood KAC-746 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kenwood KAC-746 you will learn all the available features of the product, as well as information on its operation. The information that you get Kenwood KAC-746 will certainly help you make a decision on the purchase.
If you already are a holder of Kenwood KAC-746, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kenwood KAC-746.
However, one of the most important roles played by the user manual is to help in solving problems with Kenwood KAC-746. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kenwood KAC-746 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
