A silver black sinotec amplifier which can play the CD,tuner,AC-3 and mp3 and it also consists of 5 channels(FR,FL,SR,SL and CENTRE).This amplifier has a beautiful face with push buttons for operating the amplifier manually.Now the reason this amplifier is sold with R400 and not negotiable is because it has a few challenges which are encountered when connected to other devices like for instance a DVD.Now the challenge is the volume adjustment,but other adjustments like the bass and treble are working appropriately!These volume adjustment does adjust the volume from low to high or high to low but does cut-off the volume completely at 0(zero).This only happen when the amplifier is connected with the FL and FR of the DVD,but when inputs like your AUX,AC-3,TUNER AND CD are used for the same dvd,the volume works well.Note that other volume adjustments like the bass and treble still continue to work well irrespective of the FR AND FL connection to the.