Old school McIntosh and Bozak system Bi-amped Bozak B-4000 Symphony speakers with Mac 2205 and Mac 2105 controlled through Mac C-28 pre-amp. Mac MI-3 and Mac MR-77 FM tuner. Grace streaming radio and Fire 10 Spotify streamer. Dedicated 30 amp circuit and Monster HTS-3500 to turn equipment on/off.