Where you put the subs also makes a big difference in the sound. I only have one and it’s 6’ behind my listening position. On 99% of the music I play, I can’t tell it’s there.
All the best.
Bass- at what frequency does it change from sounding like a string to just a low tone?
I have two subs and speakers I like. I have little experience comparing them to anything else. As the frequency of a given note goes lower, at some point in my system it stops sounding like an instrument making the sound and instead it just sounds like the sound. I’m not crazy about this, but maybe that’s how it is for everyone?