I have heard them and a fine sounding loudspeaker ,the only downside
is the smaller bass drivers at least if these were 8 inch drivers would would pressurize the room better it isa very deep speaker but 5 inch ,I wrote to them a 7 inch driver would have been much better ,the bass is very tuneful to a honest upper 30s it rolls off fast upper 30s is more honest. That being said very open and musical
you are missing over a solid octave of Low Bass for many that may be good enough , for myself I prefer to at least close to a flat 30 hz .
a concert grand piano lowest note is 28hz which is actually to the point it’s fundamentals bosrder on vibration that’s why 30 hz is a very respectable goal , and the larger the driver the more air volume it can push