NS10M's aren't really studio monitors but just the most popular home reference speakers. I can't imagine a big time studio having just NS10M's.
they became studio monitors after the first few months of release actually. they were terribly failed home speakers that were remarketed for the pro studio after not too long and existed in EVERY SINGLE RECORDING STUDIO I worked in during the early 90s. without exception. that's dozens of studios. I hated them every time LoL, but maybe that's just me. you're right though, they started as home speakers until near fields caught on.
They sound good, tight, don't wear you out. They don't have much bass, so that can result in bass heavy mixes. I use a homemade sub that solved that. I actually like my set of Acoustic Research AR-7's better to just listen to.
don't wear you out? sound good? no way, sorry, but I've never heard them described like that before. these are the speakers that created the terms like "tiring" when describing studio monitors. they do sound really tight though. the generally accepted phrase is "if you can make your mix sound good on ns-10s it will sound good on anything". that's moderately true, although because ns10s have such a harsh high end that is accentuated several db compared to the woofer's output, it's easy to make tame sounding mixes on ns10s, and as you noted, it's easy to add too much deep bass as well. But people still learned to mix on them and did great work on them if they could handle the sound. For me, I just got headaches listening to them so had to avoid them whenever possible.
I don't respect anybody's ears more than Bernie Grundman. I read an interview with him and he'd just mastered Eminem's CD and was doing a Disney movie next, and he had a set of NS10M's on his desk.
doesn't mean they're the best speakers or even good sounding, just means that he learned back in the day when NS10s were everywhere and one HAD to learn NS10s if you wanted to work in other people's studios. Maybe he even likes them... they are VERY good for revealing issues in your tracking or mixing. they're NOT good for listening to music or getting an idea of the true balance of your mix imho.
For sure, there are lots of speakers that are better to mix on, are more accurate and sound better. I bought mine in '83 or '84 and have been using them since... I'm hooked on them. I also have a pair of Auratones - museum stuff. They were sort of the pre-NS10M's.
I never thought NS10M's sounded nasty at all. They have a natural, clear sound to me.
you do realize that you are more the exception than the rule here right? not in that you use them and find they work well, tons of people have been in that camp, although it's much less common these days with so many better options available for reasonable prices in recent years. Mostly people who use ns10s still are people who learned on them 20 years ago. IF someone is starting out now I will always recommend against them, you can get just as much revealing quality in much better sounding speakers that are quite affordable and far easier to mix on these days.
but if you like them, that's great! I wouldn't be suggesting to someone here that they should expect to like them however. I HATE the harsh highs from the tweeters.
There's a reason why some engineers put tissue paper over the tweeters back in the day... although to me that defeated the only thing those speakers brought to the control room back in the day: they revealed hiss and other noises in the mix because they had such exaggerated highs compared to the woofer's output.
I really liked the sound of the woofers in those things though, I admit that. great punchy bass, just without any real low end extension of course.