Naturally, most mics start rolling off above 3.5Khz, especially vocal mics. This is exactly why 10K dollar condenser mics exist. They will make it sound real.
You mean $10,000 for just a mic? I might create my own recording studio if ever we will use that kind of mic. Can the amp correct the regular mic that we have? I might have to do this on the next event that we will use this audio setup.