Digital Stereo Amplifier RSDA302P I'm selling this, having replaced it and kept it for about six months. It powers on, but I am currently unable to verify the sound. Please understand that this is a no-claims, no-returns sale, and only purchase if you agree to these terms. The adapter is sold separately, so I will include an extra, unused adapter from Kohjinsha that matches the specifications. - Model Name: RSDA302P - Function: Digital Stereo Amplifier - Input Terminals: Line input, Optical input - Output Terminals: Speaker output - Adjustment Functions: Bass, Treble, Volume adjustment Thank you for looking.