I use it for 1 year in addition to 115 low PR Brand PR 4 and 115 satellites, I bought it because it is 18 inches and down to 40Hz! its power is in e 600w 8ohms and it is more than enough for any hall or concert
it is not given but the dynamics are excellent
I tried a lot of other models like Peavey, DYNACORD, WHARFEDALE by NEXO and there's not much to compete! NEXO is certainly not but it's not the same price
however it is heavy!
more info: http://www.hkaudio.com/products.php?lang=en&mode=tech&ptype=cs&pk_id=17&id=64
€ 1200 sold yet on the market, it is a good choice