COMPACT, HIGH-PERFORMANCE 4-CHANNEL AMPLIFIERThe Sony XM-GS4 is a versatile 4-channel power amplifier engineered to deliver clean, dependable amplification for your vehicle’s sound system. Designed to improve clarity, control, and overall speaker performance, it’s an ideal upgrade for factory speaker enhancements and modest aftermarket builds. STABLE, LOW-DISTORTION OUTPUTFeaturing a high-efficiency design, the XM-GS4 provides stable, low-distortion power across all four channels. This helps your speakers perform with greater dynamics and smoother response, bringing out more detail in your music without unwanted noise. COMPACT, RUGGED CONSTRUCTIONBuilt with quality components and a durable chassis, the XM-GS4 stands up to the demands of everyday automotive use. Its compact footprint allows for flexible installation in tight spaces — under seats, behind panels, or in the trunk — without sacrificing reliability. PRECISE AUDIO ADJUSTMENTEquipped with accessible gain and crossover controls, this amplifier lets you fine-tune output to match your speakers and personal listening preferences. Easy-to-use adjustment points help you dial in balanced, engaging sound that suits a wide range of music. EFFICIENT THERMAL MANAGEMENTThoughtful heat-dissipation design helps the XM-GS4 maintain stable performance during extended listening sessions. Its thermal efficiency supports long-term reliability and consistent power delivery under load. VERSATILE APPLICATIONSWhether powering front and rear speakers in a daily driver or forming part of a larger audio system, the Sony XM-GS4 delivers dependable amplification that enhances overall sound quality. It’s a reliable choice for drivers who want improved clarity, better control, and more impactful audio without a bulky amplifier footprint. | Number of Channels 4 Class D Peak Power Rating (Watts) 150 x 4 RMS Power Rating (Watts x Channels) - 4 Ohms 70 x 4 RMS Power Rating (Watts x Channels) - 2 Ohms 80 x 4 RMS Power Rating (Watts x Channels) - 1 Ohm N/A RMS Power Rating - Bridged 160 x 2 Minimum Impedance Unbridged (Ohms) 2 Minimum Impedance Bridged (Ohms) 4 THD at Rated RMS Power 1% Bulit-in Crossover - Low Pass Yes Built-in Crossover - High Pass Yes High Pass Crossover Frequency (Hz) 50-300hz Low Pass Crossover Frequency (Hz) 50-300hz Signal-to-Noise Ratio 93dB Bass Boost 0-10dB Bass Remote Included No Fuse Rating 60A CEA-2006 Compliant Yes Maximum Power Wire Gauge Size Warranty 3 Year