Well I can say this. In EVERY system I have ever listened to, be it home or car, i can make it sound much better to my ears than it being in the flat position. I'm not gonna buy 20,000 to 30,000 speakers so I can not need an equalizer. It's not economical, and I have better things to spend my money. Audio is important but not everything. I admit I have not demoed many speakers the last 10 to 15 years, cuz a lot of audio stores have closed up, and I've been content. Many of these brands have NO way to demo, and I'm not going to travel all over to do that. Plus I am limited in the speaker placement in my room. It's not real big, and I kind of need to stick with tall and skinny speakers.
Not to flame on, but if you guys have higher end televisions. Do you get it calibrated, and never use the other settings on it? With no ability to adjust the contrast, brightness, color, and all the other variables when you watch different programs? Would you buy a guitar amplifer with no TONE controls??? I'm perplexed as to why one would want this limitation in any endeavor.
If I took a hypothetical Jeff Rowland amp (1 with tone control and 1 without) what percentage of sound degradation does the 1 with tone control have??? Could he really not build them to damn near the same specs. And you could pretty much make them sound identical??