Post

I use a variety of high end and middle end gear to listen to modular. The only things I do are:
-- make sure I have a limiter in the DAW when I go modular --> DAW --> nice monitors
-- in another room I sometimes play through a Line6 PowerCab, in which case I make sure to turn on other gear before I turn on the cab, so I avoid power on / off transients

Modular levels can be very hot, so you would want to set those to zero or otherwise limit / control them so you don't run into problems with downstream gear. Most modular out modules already do this.

Overall, I think its fine to monitor with whatever you want, just follow some basic protections you would likely follow with any audio source.