I have a pair of the 210XL's ... did probably half dozen shows with them, and I got very good feedback from bandmates with the sound I was getting (using GK 400RB) ... I liked the combination, and found the sealed cabs to be very quick, and although not carrying ultra lows, carried a nice low mid that I like ... one of the speakers in one of the 210XL's has a very mild 'rumble' to it, bought it used, been like that ever since I got it and I have played it that way without any real issues ... they do not take a great deal of power, or do not really like a lot of the real low EQ's dialed in, but that isn't an issue for me .. they do what I ask of them just fine, and make a nice vertical 410 stack ... I had considered selling them off, as I have way too many cabs, but am having second thoughts, as I almost like the sound of these a bit better than my SVT 210AV stack ... but they are only 26 pounds a piece, and the 210XL's are probably mid 40's ... running one of each also works VERY well ...