Yeah, if you got an Aux In? Go for it, basically just turns the amp into a stereo speaker. As long as you aren't going super low or pushing the amp too hard, I see no issue here really using an effect like that on the amp even if it doesnt have an aux. Hell, bassists used to use guitar amps all the time back in the 60s ( Jack Bruce of Cream basically created his sound this way, although he blew apart alot of Marshalls too when they cranked them too much lol)