Dear friends it's been a while since my last post. I'm currently looking to get my 6505 mod'ed to get as close as possible to the red channel of an EVH 5150 III. I think the 6505 lacks soms bass that the EVH has. The 6505 does however have a lot more (low?) mids that I'm not fond of at all. It makes everything sound nasal and muddy. Also the high frequencies of the 6505 sound a little like bees, compared to the EVH, which sounds a lot sharper and clearer. So what I want to achieve is: - making the 6505 a lot tighter and more modern sounding overall - Having less (low)mids and more bass that is not muddy - shifting the high frequencies to have the sharp, cutting high frequencies of the EVH 5150 III Here's the difference between the two tones: https://www.youtube.com/watch?v=6r0LxauEJxU Any idea of how I should mod my amp? Any contacts that could help me out (someone with TONS of knowledge about amps and their circuits)? I'm from Belgium, in Europe. So letting it mod in the US or another country is not an option. I'm going to take my amp to my best amp tech and share the ideas that you guys have thought about. I'm curious to hear what you guys have to say about possible mods! SHOOT!