Picked up mint Mark IV's yesterday $40, clean the HF pots. listening right now _ Eico HF-81 - Ah! Njoe Tjoeb 4000 CD Player, SWEET!!! I want to replace the 3.0 Uf cap got any recomendations? any other updates or Mods? They do sound great as is. I am guessing they will sound even better with new caps. Thanks