The Sony Mobile ES XM-5ES is a premium 5-channel Class-D amplifier engineered for audiophile-grade sound quality, OEM integration, and complete full-system power from a single chassis. It’s one of the flagship amplifiers in Sony’s Mobile ES lineup and is especially popular for powering front speakers, rear speakers, and a subwoofer together while maintaining excellent detail, low distortion, and Hi-Res Audio capability Main Features 5-channel Class-D amplifier High-Resolution Audio compatible 100W x 4 + 450W RMS @ 4Ω 165W x 4 + 750W RMS @ 2Ω 330W x 2 bridged + subwoofer channel Signal summing for OEM integration Differential balanced inputs Variable HPF/LPF crossovers Adjustable infrasonic filter Resonance-damping aluminum chassis Dual power supply design Gold-plated terminals and connectors Included remote bass knob Flexible channel routing options Specs Specification Details Amplifier Class Class-D Channels 5 RMS Power @ 4Ω 100W x 4 + 450W x 1 RMS Power @ 2Ω 165W x 4 + 750W x 1 Bridged Power 330W x 2 + 450W x 1 Frequency Response 10Hz – 40kHz Subwoofer Response 10Hz – 500Hz THD