Great lol responses! Zd, you have a point - what happens if now you can hear the ear piercing sound of much of modern equip that is tipped up in the highs? Also should put in a disclaimer not to use if you have an ear piercing wife!
Thirty dollar upgrade worth thousands
Helpful $30 suggestion - clean your ears! I purchased a otoscope (the instrument for visualizing your ear canal and eardrum) from Amazon for $20, called the original Doctor Mom. Plus $5 in Debrox ear drops (most recommended way of cleaning) at the pharmacy. Even though I though my hearing was fine, my wife could easily see that I had wax buildup. Clearing this out might just save you 20K in equipment chasing for better sound.