I hear tell on the interwebs that the Fender Rumble range work well with guitar.
Plus, their appearance is ambiguous so they could be mistaken for a guitar amp, if that sort of thing bothered you. As it would me.
I do looping live on occasion with my bass and Tele or Strat going thru various treatment devices, into a Boss RC-300 and then into a MarkBass CMD 102p. Sounds just fine to me.