Studio gear is certainly not overbuilt as some home HiFi is. It is certainly more reasonably priced. I use commercial sound reinforcement amps to drive my subwoofers and I use a studio digital switcher with DAC and ADC capability. There is absolutely nothing special about studio gear and in many instances it is inferior to home equipment. This is particularly true of loudspeakers (monitors). The very best speakers are not studio monitors. That is not to say there are not some very good ones like the old LS3 5A. Put a subwoofer under the LS and cross at 100 hz and you will swear you are listening to Wilsons. I also would be willing to bet most studios are using digital equipment at this point. The analog stuff is being or has been phased out except in specialty studios dedicated to analog of which there are a few, not including MoFi😏
I assure you I have normal (nothing special) ears. I am a very careful, organized listener and certainly I do not use my nose to do that. As I said above, I have my own house curve. I wonder how I developed it. Must have done it with the third toe on the left. I also do not wax poetic about analog equipment. I am not a romantic.
tl and I agree that having EQ capability is an important asset. We go about it differently. That is why Howard Johnson's made 28 flavors.