i am using with my ups powered 12v battery for optimal performance as a home theatre systempros1 really high loudness with my sony xsfb6930 3 way coaxial speakers2 straight forward setup give it take it thats it3 volume knobs in the rear side to correct high amplification distortion4 lpf and hpf switches5 support for speakers and sub woofers6 multi channel from 2 through 4 channelscons1 connectivity could have been with optical hdmi spdif bluetooth as an independent