EQ and mastering should not be used in the same sentence (except now)..I hate the thought that professional mastering engineers would use any kind of EQ in a final master! I'm outraged that people make i living out of primarily using an EQ for mastering!!!!- i don't care if it's loaded with hot vintage tubes either!.. If it needs any kind of EQ level adjustment it needs to be remixed, simple as that. Throw your EQ in the bin now!!!! There are 101 ways of tweaking frequencies without using an EQ!!!- Umm Hello? heard of r.e.v.e.r.b ???! -my 2 cents.