Connecting the Unit

CAUTION

•Disconnect the negative (–) terminal of the bat- tery to avoid the risk of short-circuit and damage to the unit.

•Secure the wiring with cable clamps or adhesive tape. 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.

To prevent damage

•Do not ground the speaker wire directly or con- nect a negative (–) lead wire for several speakers.

•This unit is for vehicles with a 12-volt battery and negative grounding. Before installing it in a recre- ational vehicle, truck or bus, check the battery voltage.

•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.

•Make sure that wires will not interfere with mov- ing parts of the vehicle, such as the gearshift, handbrake or seat sliding mechanism.

•Do not shorten any wires. Otherwise the protec- tion 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. The current capacity of the wire will be exceeded, causing overheating.

•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.

•Cords for this product and those for other prod- ucts may be different colors even if they have the same function. When connecting this product to another product, refer to the supplied Installation manuals of both products and connect cords that have the same function.

GM-X574

Speaker Channel

Speaker Type

Power

Four-channel

Subwoofer

Nominal input: Min. 55 W

 

 

Other than subwoofer

Max. input: Min. 100 W

 

 

 

 

Two-channel

Subwoofer

Nominal input: Min. 135 W

 

 

Other than subwoofer

Max. input: Min. 260 W

 

 

 

 

Three-channel

Subwoofer

Nominal input: Min. 55 W

 

 

 

Speaker output A

Other than subwoofer

Max. input: Min. 100 W

 

 

 

Three-channel

Subwoofer

Nominal input: Min. 135 W

 

 

 

Speaker output B

Other than subwoofer

Max. input: Min. 260 W

 

 

 

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Pioneer GM-X374 owner manual Connecting the Unit, To prevent damage, GM-X574 Speaker Channel Speaker Type Power
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GM-X574, GM-X374 specifications

The Pioneer GM-X374 and GM-X574 are distinguished amplifier models that capture the essence of dynamism and versatility in car audio systems. Both models are integral parts of the Pioneer amplifier series, designed to deliver high-performance sound amplification with advanced technological features, making them favorites among audio enthusiasts.

The GM-X374 is a 4-channel amplifier, allowing for versatile installation options in various vehicle configurations. One of its standout features is the compact, space-saving design, which facilitates easy mounting without consuming valuable real estate in the trunk or under seats. The amp boasts a power output of 50 watts per channel at 4 ohms and can deliver up to 90 watts per channel at 2 ohms. This ensures that users enjoy robust sound performance, even at higher volume levels, without distortion.

Pioneer's GM-X574 takes things up a notch with its 5-channel configuration, making it ideal for systems that require additional power for subwoofers. Its power output reaches 50 watts per channel for the four channels and a substantial 150 watts for the subwoofer channel at 4 ohms, ensuring a deep, resonant bass experience. This model is especially appealing to those who want to build a comprehensive sound system without needing multiple amplifiers.

Both amplifiers are equipped with an array of technologies that enhance their performance. The built-in crossover network allows users to tailor the sound output according to their preferences, making it easier to achieve a balanced audio experience. The adjustable high-pass and low-pass filters ensure that the right frequencies are sent to the appropriate speakers, vastly improving audio clarity.

Durability is another key characteristic of the GM-X374 and GM-X574. Both models are constructed with high-quality components designed to withstand the rigors of automotive environments. The heat sink design promotes efficient heat dissipation, allowing for extended use without overheating, thereby ensuring longevity and reliability.

The amplifiers are also equipped with RCA inputs, making them compatible with a wide array of head units. This flexibility allows for seamless integration into existing audio systems. These features, combined with easy installation options and a sleek design, make the Pioneer GM-X374 and GM-X574 excellent choices for anyone looking to elevate their car audio experience.
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