For the past few weeks my desktop setup has been having crackling audio at any volume. High DR and low DR has the same crackling. The oldest part is my Sansui 2000A. You can only hear noise at max volume but its very faint then. My dac is the Topping E30 and my speakers are the Elac Debut 2 b62. I'm thinking its either my old Sansui or my tweeters in my Elacs are going bad. The only thing I done to my Elacs is that I removed the tweet grilles because they measured better without them on. I was wondering what should I do.