The Sony XS-163ES is a flagship Mobile ES 3-way component speaker system engineered for high-end SQ and DSP-based car audio systems. Featuring a dedicated 6.5-inch woofer, 3.5-inch midrange, and 1-inch soft-dome tweeter, the XS-163ES is designed to produce exceptional sound staging, vocal realism, and high-frequency detail while maintaining strong midbass performance. It’s one of the most respected speaker systems in Sony’s Mobile ES lineup for audiophile-grade daily-driver builds. Main Features 3-way component speaker system 6.5” woofer 3.5” dedicated midrange 1” soft-dome tweeter Hi-Res Audio compatible Lightweight rigid cellular aramid fiber matrix cones Separated Notch Edge surround Dynamic Air Diffuser cooling design Five-beam anti-resonance frame Audiophile-grade crossover network Bi-amp capable crossover design Wide soundstage and detailed imaging Frequency response up to 40kHz Specs Specification Details Speaker Size 6.5" Configuration 3-Way Component RMS Power 90W Peak Power 270W Impedance 4Ω Sensitivity 89 dB Frequency Response 40Hz – 40kHz Midrange Size 3.5" Tweeter Size 1" Tweeter Type Soft Dome Woofer Material Aramid Fiber Matrix Approx. Shipping Weight ~12–16 lbs Installation Notes The XS-163ES performs best with: DSP processors Active crossover tuning Quality amplification Proper sound deadening Custom midrange placement