Hello, ZS7 have arrived yesterday, so I did a quick comparison with ZS10 Pro (original cables and silicone tips) So ... ZS10 Pro are more detailed from lows to heights. Bass quantity is similar, zs7 have more hum in sub-bas. Mids are in back seat on both. Better balanced on ZS10 Pro. Heights are more prominent on ZS10 Pro. More presence and airiness. And my preferences? ZS10 Pro are great for electronic music and vocals. Their elevated heights do a good job here in terms of feeling and space. But I found ZS10 Pro as unbalanced for genres like rock, metal, indie, some pop or instrumentals etc. There is simply too much treble on high-hats, cymbals, percusions and similar high pitched instruments. And while ZS7 aren't so extended on both ends, I like them more, as the iem suitable for more genres. Also I prefer upper-mid bump in these days, which is audible and very well behaved on ZS7.