Around here good luck with that. We've played outdoor shows (classic rock but 80s metal tones) where the guy with the 2203 half stack was told to turn down set at 2. It will match a drummer easily at that point. So yeah many of us would have issues getting it to 6 where it really kills. At that point the OD isn't overly necessary. Indoors forget it. Yeah we've talked about this before and I wonder if yours were the early versions. Cause I have the Version 2 and if anything it has just a hair more high end than the raw amp. It certainly doesn't kill the highs at all. They changed something with the V2. I A/Bd it and if it really affected the tone a lot I would know. I really wanted that second channel of volume not just attenuation. I used it just once live so far with the 4010 and I had no issues with it killing frequency response. I was concerned about this when I bought it. I also have a Dr Z Airbrake.