User manual PIONEER PRS-D4200F

[. . . ] The amplifier surface could also become hot to the touch and minor burns could result. To properly install or use a bridged mode for a two-channel amplifier and achieve a 4 load, wire two 8 speakers in parallel with Left + and Right ­ (Diagram A) or use a single 4 speaker. For a four-channel amplifier, follow the speaker output connection diagram for bridging as shown on the back of your amplifier, and wire two 8 speakers in parallel to achieve a 4 load or use a single 4 speaker per channel. If you have any questions or concerns, please contact your local authorized Pioneer dealer or call Pioneer customer service. [. . . ] The above illustration shows the gain set to NORMAL. To protect the wiring, wrap adhesive tape around it where they lie against metal parts. ⷠDo not route wires where they will get hot, for example where the heater will blow over them. If the insulation heats up, it may become damaged, resulting in a short-circuit through the vehicle body. ⷠMake sure that wires will not interfere with moving parts of the vehicle, such as the gearshift, handbrake or seat sliding mechanism. ⷠDo not shorten any wires. Otherwise the protection circuit may fail to work when it should. ⷠNever feed power to other equipment by cutting the insulation of the power supply wire to tap from the wire. Never replace the fuse with one of greater value or rating than the original fuse. Use of an improper fuse could result in overheating and smoke and could cause damage to the product and injury including burns. Do not ground the speaker wire directly or connect a negative (­) lead wire for several speakers. ⷠThis unit is for vehicles with a 12-volt battery and negative grounding. If the car stereo is kept on for a long time while the engine is at rest or idling, the battery may go dead. Turn the car stereo off when the engine is at rest or idling. ⷠIf the system remote control wire of the amplifier is connected to the power terminal through the ignition switch (12 V DC), the amplifier will always be on when the ignition is on-- regardless of whether the car stereo is on or off. Because of this, the battery could go dead if the engine is at rest or idling. ⷠSpeakers to be connected to the amplifier should conform with the standards listed below. If they do not conform, they may catch fire, emit smoke or become damaged. the speaker impedance must be 2 to 8 ohms. But in case of two-channel and other bridge connections, the speaker impedance must be 4 to 8 ohms. ⷠInstall and route the separately sold battery wire as far away as possible from the speaker wires. Install and route the separately sold battery wire, ground wire, speaker wires and the amplifier as far away as possible from the antenna, antenna cable and tuner. [. . . ] ⷠMake sure that wires are not caught in the sliding mechanism of the seats, resulting in a short-circuit. ⷠConfirm that no parts are behind the panel when drilling a hole for installation of the amplifier. Protect all cables and important equipment such as fuel lines, brake lines and electrical wiring from damage. ⷠInstall tapping screws in such a way that the screw tip does not touch any wire. [. . . ]