It's very important to acknowledge when you can trust your ears. Personally I go through so many IR's that I've taught myself to transition fast. Essentially you need a palate cleanser.
For me it works best to have a reference sound that can be pretty much anything. I'm not sure if this works for everyone but I use it for setting the brightness to things like kicks and snares as well. Snap your fingers, clap your hands, knock the table.. (these are not lyrics for a pop song) Really concentrate on the natural brightness, balance and dimension of real sound. Then set your auditioning volume on a similar level and it's a lot easier to hear what works and what doesn't. It's simple.
For me it works best to have a reference sound that can be pretty much anything. I'm not sure if this works for everyone but I use it for setting the brightness to things like kicks and snares as well. Snap your fingers, clap your hands, knock the table.. (these are not lyrics for a pop song) Really concentrate on the natural brightness, balance and dimension of real sound. Then set your auditioning volume on a similar level and it's a lot easier to hear what works and what doesn't. It's simple.