Section

01 Before you start

Before connecting/ installing the amplifier

WARNING

!Handling the cord on this product or cords as- sociated with accessories sold with the pro- duct may expose you to chemicals listed on proposition 65 known to the State of California and other governmental entities to cause can- cer and birth defects or other reproductive harm. Wash hands after handling.

!The use of a special red battery and ground wire RD-223, available separately, is recom- mended. Connect the battery wire directly to the car battery positive terminal + and the ground wire to the car body.

!This unit is for vehicles with a 12 V battery and negative grounding. Before installing in re- creational vehicles, trucks or buses, check the battery voltage.

!Always use a fuse of the rating prescribed. The use of an improper fuse could result in overheating and smoke, damage to the pro- duct and injury, including burns.

!Check the connections of the power supply and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. Deter- mine and resolve the cause, then replace the fuse with identical equivalent.

!Do not allow this unit to come into contact with liquids. Electrical shock could result. Also, damage to this unit, smoke, and over- heating could result from contact with liquids. The surfaces of the amplifier and any attached speakers may also heat up and cause minor burns.

!In the event of any abnormality, the power supply to the amplifier is cut off to prevent equipment malfunction. If this occurs, switch the system power OFF and check the power supply and speaker connections. If you are un- able to determine the cause, please contact your dealer.

!Always disconnect the negative * terminal of the battery beforehand to avoid the risk of electric shock or short circuit during installa- tion.

CAUTION

!Always keep the volume low enough so that you can hear sounds from outside the vehicle.

!Extended use of the car stereo while the en- gine is at rest or idling may exhaust the bat- tery.

Important (Serial number)

The serial number is located on the bottom of this unit. For your own security and convenience, be sure to record this number on the enclosed warranty card.

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Pioneer GM-6400F owner manual Before you start Before connecting/ installing the amplifier
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GM-6400F specifications

The Pioneer GM-6400F is a versatile four-channel power amplifier designed to provide a significant boost in sound quality and performance for car audio systems. This robust amplifier is engineered to enhance your listening experience by delivering clear and powerful audio reproduction.

One of the main features of the GM-6400F is its impressive power output. With a maximum power of up to 640 watts, this amplifier is capable of driving multiple speakers without distortion, ensuring that every note and beat is delivered with precision. The GM-6400F can deliver 75 watts RMS per channel at 4 ohms, making it suitable for a wide variety of speakers, and produces a punchy and dynamic sound that can fill any vehicle.

Additionally, the amplifier incorporates advanced Class D technology, which contributes to its efficiency and compact size. Class D amplifiers are known for generating less heat compared to traditional Class AB amplifiers, allowing the GM-6400F to utilize a smaller chassis without sacrificing power or performance. This enables easier installation in tight spaces without compromising sound quality.

The GM-6400F also features a built-in low-pass filter that allows users to tailor the sound to their preference. This filter can be adjusted to focus on specific frequencies, making it easier to blend with subwoofers or enhance specific elements of the audio mix. Furthermore, the amplifier provides a variable bass boost which can add extra thump to low frequencies for those who desire a more pronounced bass experience.

With its durable construction, the Pioneer GM-6400F is built to endure the rough conditions of a mobile environment. The amplifier’s sleek design ensures not just performance but also aesthetic appeal, making it a great addition to any audio setup. An easy-to-read LED indicator on the front panel helps monitor the amplifier’s status without the need for complex diagnostics.

Overall, the Pioneer GM-6400F is an exceptional choice for car audio enthusiasts seeking a powerful yet efficient amplifier. Its combination of advanced technology, user-friendly features, and robust build quality makes it a top contender for enhancing sound in any vehicle audio system. Whether you’re listening to your favorite music or experiencing cinematic sound effects, the GM-6400F is designed to elevate your auditory experience on the road.
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