Elevate your in-car audio experience with the Pioneer GM-D1004 Car Audio Amplifier. Delivering exceptional sound quality with rich details, deep bass, and a dynamic range, this compact Class FD amplifier offers powerful and flexible performance for any audio setup. Whether you're powering 4, 3, or 2 speakers, it ensures optimal sound with 45W RMS per channel at 4 ohms, 90W RMS when bridged, or up to 100W x 4 MAX at 4 ohms (1% THD). The amplifier's precise frequency control via High-Pass and Low-Pass filters (80 Hz crossover) guarantees smooth transitions between frequencies, enhancing overall sound clarity. In addition to its small size, the GM-D1004's low current consumption (averaging only 1.7 amps) simplifies installation, as it does not require additional wiring to the engine compartment, significantly reducing installation time. Power can be easily supplied from the back of your navigation or car audio system. With the included RCA input and speaker line input cables, you can begin installation immediately after purchase. Designed for user-friendly integration, this amplifier ensures a hassle-free setup for all users. Compact, efficient, and built for durability, the GM-D1004 provides superior audio performance for an effortless upgrade to your vehicle's sound system.