Define “decent”.
It makes no sense to me to buy a cheap modeling combo amp, with a cheap speaker and cabinet, then buy a much better modeler and plug it into the power amp return running the modeler through that same cheap speaker and cabinet and ignoring that the main reason to have the amp (the Katana’s modeler, its “preamp”) is not being used.
A better solution would be to find a small powered PA cabinet, maybe with a 10”, FRFR or not, that costs about the same amount. The money spent will go directly to the parts that are necessary and nothing is wasted, and the parts are designed to work together to do what the modeler does, create sound accurately.
https://www.sweetwater.com/c134--10...6eyJQcmljZSBSYW5nZSI6WyIkMzAwIHRvICQ1MDAiXX19