At the risk of being called ultra pedantic, hardwired and transformer isolated splitters are both "passive" ;-)
I got called out on the terminology some years back...!
Fair enough. I've always referred to the "Y" splits as passive for some reason, though I've never thought of or referred to a transformer split as "active", so I guess it's a meaningless descriptor in that context.
Not looking to fly anything at this point as 95% of my events are ground supported PAs.
If ground stacked, why not a single, coherent, high output box rather than this? I've used similar (WiFo), but only flown, and even then - was underwhelmed.
These days, for common usage, the isn't a compelling reason to have an isolated split. I do run across the Seismic splitters fairly often and many times there is a bad channel or two. These are band owned splits and don't see much maintenance. I think they can be okay is they are handled with care and see maintenance as needed. I would probably switch out the connectors for better quality as the need repair. My first spilt was a 10 ft long, 16 channel snake cable, males on one end and a pair of wyed females on the other. It served me well for many years and as far as I know a friend is still using it.