User manual ALPINE MRV-F307

[. . . ] OWNER'S MANUAL Please read this manual to maximize your enjoyment of the outstanding performance and feature capabilities of the equipment, then retain the manual for future reference. Please read this OWNER'S MANUAL thoroughly to familiarize yourself with each control and function. We at ALPINE hope that your new MRV-F357/MRV-F307/MRVT707/MRV-T407 will give you many years of listening enjoyment. In case of problems when installing your MRV-F357/ MRV-F307/MRV-T707/MRV-T407, please contact your authorized ALPINE dealer. [. . . ] As much as possible connect all equipment to the same ground point. Before making connections, be sure to turn the power off to all audio components. Connect the yellow battery lead from the amp directly to the positive (+) terminal of the vehicle's battery. Do not connect this lead to the fuse block. Locate the unit and route the leads at least 10 cm away from the car harness. ⷠKeep the battery power leads as far away from other leads as possible. ⷠConnect the ground lead securely to a bare metal spot (remove the coating if necessary) of the car chassis. ⷠIf you add an optional noise suppressor, connect it as far away from the unit as possible. 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. 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. This is an ideal output for driving a separate subwoofer amp. This output is full-range, and is not affected by the crossover. Be sure to observe correct speaker output connections and phasing. 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. Insulation Tube Battery Lead (Yellow) Be sure to add a 5 50 amp fuse (or two 25A fuses in parallel) 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. Connect this lead to the remote turn-on or power antenna (positive trigger, (+) 12V only) lead of your head unit. [. . . ] C) Set to the "OFF" position when the amplifier will be used for driving full-range speakers. The full frequency bandwidth will be output to the speakers with no high or low frequency attenuation. Permits adjustment of the crossover frequency, by rotating the knob to select any frequency between 50 to 200 Hz as the crossover point. Using a loud cassette or preferably a CD as a source, turn up the head unit volume until it distorts. [. . . ]