Any SS amp is fine. Generally one with good headroom and transparent sound.
Many people like the Matrix amps but they can be expensive.
Someone else can comment on the Seymour power stage as I have no experience although it looks relatively low power for an SS amp...the amp in Kempers are 600 watt ( as a comparison).
While the Seymour Duncan 170 Powerstage is a lower power rating then the amp module in the Kemper, they are both high quality modules designed and built by IcePower.
With that said, the SD170 is crazy loud, and should be more than enough to power a guitar speaker or FRFR monitor to physically dangerous sound levels...including in a band context with a mutant drummer.