I searched the forums for FRFR and a lot of the posts were several years old, so I hope it's not inappropriate to touch on this question again. The challenge seems to be that most folks are going with powered speakers and I need passive.
The Gemini seems to get a lot of attention, but I have a powered head and at least here in the US, retailers seem to carry the powered cabs exclusively. I've also read that the characteristics of FRFR cabinets vary significantly from brand to brand.
While my preference is to run the Kemper to FOH, making my stage monitor less relevant, I'm nonetheless considering going FRFR for the monitor if there's a significant difference over my Marshall 4x12 / monitor cab off. There is a noticeable difference between the cab and what I hear from my reference monitors in the studio, so I thought it would be worth exploring.
For those of you using passive FRFR cabs, I'd love to year your thoughts on the strengths / weaknesses of the brands out there.