it doesn't have the upper mid peakiness you hear in a regular 57. It's not a huge difference, but on a vocalist like ours, it is. It seems like a little warmer, but I'd say it's more because the high mids are more relaxed. The output is lower. I had the preamp gain on my profire 2626 pegged. Only on the loudest screams would it clip, so it really was perfect. I captured the AT3035's sound alongside the 57, at some point I may put up a raw audio file comparing the 2. Our vocalist is really raspy and doesn't have much beef to his voice. For our music I think it works, but I've always struggled to get a beefier tone out of him. I wanted to get an SM7B prior to tracking but I couldn't afford it. I did this mod to my 57 a couple years ago, and never really tried it on him until this weekend after reading people compare an sm7 to a modded 57...I've never used an SM7 myself, so I can't compare directly, but I can say I like it better than just a regular 57 for his vocals, or my AT3035.