I just cannot relate to any of this. All this stuff is so skewed from anything I'd call quality, I'm lost.
If you are into music for video or movies, or want to do aby kind of more than stereo, then people like Dolby lay down very specific criteria for monitoring systems, and these rooms always sound neutral, flat and really, really capable of accuracy and truthful reproduction.
I work a lot with show music, classical music and choral stuff and if you record somebody with an antique instrument, or something really special, your recording really must sound realistic. The big movie studios know their carefully crafted and balanced mixes get played back in certified movie theatres and cinemas, but also get streamed and listened to on all kinds of devices. They spend a fortune recording things huge numbers of listeners never even notice. I simply don;t recognise this muddy mids thing we're talking about here. If the mid range is muddy and indistinct, which is what I think you mean, then your mix put too much in the mids where they all fought with each other.
Theres another thing - tired ears. Full range, truthful and neutral speakers allow longer exposure before you start to get tired and lose acuity. Small speakers can be more tiring. I hate the small Genelecs that are so common in OB trucks. A pair of them, close in, sound pretty good, but after a few hours, your ears have got used to the way they sound and you start to make less good decisions.
The Quad electrostatics were truly amazing sounding speakers - brilliant for classical and choral music. You really felt like you were in the room, but they were impossible to use with pop music, or even jazz with a double bass - they'd fart and crack horribly.
I found a couple of old recordings, made on NS10s, and in fairness, they've not actually made the recording strange that I can tell, but the tracks probably had very little bottom end anyway.
Panax said
Full frequencies aren't accurate? Surely that's reversed. You can put a bass truthful speaker system on a flute, or something that struggles below 60Hz - but how about a 5 string bass twanging the open B - what would the bandwidth limited speaker do? Try to reproduce the note it can't? Can you imagine how the flute would sound with a dinky driver doing it's best to manage that B, and do the flute at the same time. I struggle with subs in a recording situation. I know many people add a sub, but despite not being able to localise bass, I suspect most people do detect it is coming from a different place in the room.