Mostly 410 cabinets - I've used it through a Marshall 410 (great), a Fender Rumble 410 (good, but not enough low end for me), and now an Eden D410T (a bit mid-heavy, but volume for days). Also an Avatar 210 that is "ok", but I think I just don't like that cabinet anymore. I've never had to push my LH500 past about 2:00, even playing in a cavernous curling club or outdoors. Fantastic line of heads. I've thought about upgrading to the LH1000, but I've honestly never lacked for power with the 500. Only reason would be to run two 4ohm cabs I guess, but I've never needed to do that either.