User manual ALPINE MRV-1005

[. . . ] Never connect left and right channel speaker cables to each other or to the vehicle body. This unit is designed for 12 VDC, negative ground systems. Make sure that your vehicle has this type of electrical system before connecting the power cable. When making connections to the car's electrical system, be aware of the factory installed components (e. [. . . ] Your Alpine dealer carries various Alpine noise suppressors, contact them for further information. Your Alpine dealer knows best about noise prevention measures so consult your dealer for further information. 1 RCA Input Jacks Connect these jacks to the line out leads on your head unit using RCA extension cables (sold separately). Be sure to observe correct channel connections; Left to Left and Right to Right. 2 Speaker Output Terminals The MRV-1505/MRV-1005/MRV-T505 has two sets of speaker outputs. Be sure to observe correct speaker output connections and phasing. 3 Battery Lead (Yellow) Be sure to add a 80 amp fuse as close as possible to the battery's positive (+) terminal. This fuse will protect your vehicle's electrical system in case of a short circuit. If you need to extend this lead, the wire gauge should be 8 AWG or larger. 30 amp fuse 4 Remote Turn-On Lead (Blue/White) Connect this lead to the remote turn-on or power antenna (positive trigger, (+) 12V only) lead of your head unit. 5 Ground Lead (Black) Connect this lead securely to a clean, bare metal spot on the vehicle's chassis. Verify this point to be a true ground by checking for continuity between that point and the negative (­) terminal of the vehicle's battery. Ground all your audio components to the same point on the chassis to prevent ground loops. 6 Insulation Tube MRV-1505/MRV-1005 In case of using the leads (speaker/power supply cord) purchased at the market, use the hexagon screws and the hexagon wrench (M2. 5) included as the accessory to make connection easier. The wire size should be within AWG6 ­ AWG18. Do not use the speaker (­) terminals as a common lead between the left and right channels. Do not connect this lead to the vehicle's chassis. NOTE: Do not connect speaker leads together or to chassis ground. 7 High-pass Output Phase Switch Sets the phase of this output to 0° (in phase) or 180° (inverted) independently from the other output. Often, the subwoofer and midrange (or midrange and tweeter) may be acoustically out of phase with each other, meaning all the sound will cancel completely or partially. Also, 2nd order filters are naturally out-of-phase electrically. [. . . ] If any of the above conditions exist, the remote turn-on lead of your MRV-1505/MRV-1005/ MRV-T505 must be connected to a switched power source (ignition) in the vehicle. Be sure to use a 3A fuse as close as possible to this ignition tap. Using this connection method, the MRV-1505/MRV-1005/ MRV-T505 will turn on and stay on as long as the ignition switch is on. If this is objectionable, a SPST (Single Pole, Single Throw) switch, in addition to the 3A fuse mentioned above, may be installed in-line on the MRV-1505/MRV1005/MRV-T505 turn-on lead. [. . . ]