User manual AKAI AM-U310

[. . . ] Model KAC-X1R/ AM-U310 Serial number To prevent injury or fire, take the following precautions: For safety's sake, leave the mounting and wiring work to professionals. When extending the battery, or ground wires, make sure to use automotivegrade wires or other wires with the range of 10 mm2 (AWG 8) to 25 mm2 (AWG 4) to prevent wire deterioration and damage to the wire coating. To prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit. If the unit starts to emit smoke or strange smells, turn off the power immediately and consult your Kenwood dealer. [. . . ] If it's connected to the vehicle's wiring harness, it can cause blown fuses etc. 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 wire. Do not allow the wire to directly contact the edge of the iron plate by using Grommets. 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. 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 between 10 mm2 (AWG 8) to 25 mm2 (AWG 4). ) · 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. The rated input power of the speakers that are going to be connected should be greater than the maximum output power (in Watts) of the amplifier. Use of speakers having input power ratings that are less than the output power of the amplifier will cause smoke to be emitted as well as damage. After installing the unit, check to make sure that electrical equipment such as the brake lamps, turn signal lamps and windshield wipers operate normally. 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. Do not remove caps from unconnected wires or connectors to prevent short circuits. Sharing the negative wire of the speaker or grounding speaker wires to the metal body of the car can cause this unit to fail. After installation, check that the brake lamps, winkers, and wipers work properly. You can use wires with the following thicknesses: Battery wire and ground wire Power control wire and speaker wire AWG 4 ­ AWG 8 AWG 6 ­ AWG 18 7 ­ 10 mm (9/32" ­ 3/8") Hexagon Wrench (Large) Hexagon Wrench (Small) Make a cut in the wire sheath (insulator made from vinyl, etc. ) at the position 7-10 mm away from the end of the wire, and then remove the unnecessary portion of the sheath by twisting it. Before connecting the remote controller cables, always turn the Bass boost level knob all the way to the left. You can control the Bass boost level of the second and subsequent Slave amplifiers simultaneously from the Master amplifier. [. . . ] The entire bandwidth is output without filtering. The filter outputs the band of lower frequencies than the frequency set with the "LPF FREQUENCY" control. Set this control according to the pre-output level of the center unit connected with this unit. For the pre-output level, refer to the <Specifications> in the instruction manual of the center unit. [. . . ]