Sony MEXGS820BT GS, 160W Hi-Power, Variable Color, Dual BT, NFC, Songpal, Sxm, Dual USB, Dual AUX, 3 Pre 5V, EQ10, Extrabass, Aoa 2.0

Aftermarket car stereos typically provide a lot more power to your speakers than factory radios — I've heard the difference. But Sony's MEX-GS820BT takes that to the extreme with its powerful Class-D amplifier. Boasting 45 watts of continuous output per channel, it'll take your system to a level once reserved for external power amps. You can tweak that output with an impressive array of sound-shaping tools, including a 10-band EQ, time alignment, and comprehensive frequency filters.