2 X 50 Watt Truck Amp (120-1971) Mounting Faxback Doc. # 6716 Mount the amplifier as follows in the location you chose earlier. Unplug the wiring harnesses to make mounting more convenient. 1. Using the mounting holes on the amplifier as a guide, mark the locations for the mounting holes. 2. Drill 9/64-inch holes in the marked locations, taking care not damage anything behind the mounting surface. 3. Attach the amplifier to the mounting surface using the supplied sheetmetal screws and washers. Plug in the wiring harnesses. TURNING ON THE AMPLIFIER The amplifier automatically turns on whenever you turn on your radio/cassette player. The POWER indicator lights when the amplifier is on. SETTING THE INPUT LEVEL CONTROL LEVEL lets you adjust the level of audio signals that enter the amplifier. For the best performance, follow these steps to adjust the input level. 1. Turn LEVEL fully counterclockwise. 2. Turn on your stereo system and turn up the volume to about one-third of its full range. Turn on the ignition, if necessary, to turn on the amplifier. 3. Adjust LEVEL until the volume is at the maximum level you desire the radio/tape player to produce. 4. Adjust the stereo system's volume control to a comfortable listening level. CAUTIONS: Never turn LEVEL up any farther than you need to get clear sound at 2/3 volume. The overload red indicator illuminates under the following conditions: The amplifier is overheated. The speaker wires are shorted. The ground wire is open. The speaker's impedance is above or below the rated output impedance. The Amplifier's overload protection circuit automatically shuts down when any one of the above conditions occurs. If this happens, turn off your sound system and let the amplifier cool down before you restart. LISTENING SAFELY To protect your hearing, follow these guidelines: Do not listen at extremely high volume levels. Extended, high volume listening can lead to permanent hearing loss. Always start by setting the volume to the lowest level possible before you begin listening then gradually increase the volume as necessary. Once you set the volume, do not increase it. Over a period of time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing. (CJD/all-06/29/94)