User manual PIONEER GM-X624 (EN)

[. . . ] Always use the special red battery and ground wire [RD-223], which is sold separately. For traffic safety and to maintain safe driving conditions, keep the volume low enough so that you can still hear normal traffic sound. Check the connections of the power supply and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. Detect the cause and solve the problem, then replace the fuse with another one of the same size and rating. [. . . ] Since hearing damage from loud noise is often undetectable until it is too late, this manufacturer and the Electronic Industries Association's Consumer Electronics Group recommend you avoid prolonged exposure to excessive noise. Decibel Level Example 30 Quiet library, soft whispers 40 Living room, refrigerator, bedroom away from traffic 50 Light traffic, normal conversation, quiet office 60 Air conditioner at 20 feet, sewing machine 70 Vacuum cleaner, hair dryer, noisy restaurant 80 Average city traffic, garbage disposals, alarm clock at two feet. THE FOLLOWING NOISES CAN BE DANGEROUS UNDER CONSTANT EXPOSURE 90 Subway, motorcycle, truck traffic, lawn mower 100 Garbage truck, chain saw, pneumatic drill 120 Rock band concert in front of speakers, thunderclap 140 Gunshot blast, jet plane 180 Rocket launching pad Please contact the dealer or distributor from where you purchased the product for its after-sales service (including warranty conditions) or any other information. In case the necessary information is not available, please contact the companies listed below: Please do not ship your product to the companies at the addresses listed below for repair without advance contact. If the output is low, even when the volume of the car stereo is turned up, turn these controls clockwise. If there is distortion when the volume of the car stereo is turned up, turn these controls counter-clockwise. If you only use one input plug, set the gain controls for speaker outputs A and B to the same position. When using with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. Output of 4 V or more, adjust level to match the car stereo output level. If you hear too much noise when using the speaker input terminals, turn the gain control counter-clockwise. Make sure that wires will not interfere with moving parts of the vehicle, such as the gearshift, handbrake or seat sliding mechanism. Always use the special red battery and ground wire [RD-223], which is sold separately. Expose the end of the speaker wires by about 10 mm and twist using nippers or a cutter. Connect the speaker leads to suit the mode according to the figures shown below. Do not connect both the RCA input and the speaker input at the same time. Pass the battery wire from the engine compartment to the interior of the vehicle. After making all other connections to the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. You must attach the supplied terminal cover to the speaker output terminal. Do not install in: --Places where it could injure the driver or passengers if the vehicle stops suddenly. --Places where it may interfere with the driver, such as on the floor in front of the driver's seat. 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. [. . . ] Push on the screws with a screwdriver so they make marks where the installation holes are to be located. Cut off frequency: 40 -- 120 Hz Cut off slope: ­12 dB/oct High pass filter . Cut off frequency: 40 -- 120 Hz Cut off slope: ­12 dB/oct Maximum input level/impedance . Specifications and the design are subject to possible modification without notice due to improvements. [. . . ]