Used is fine imo , if shipped properly and insured .I would only buy here used personnally and from solid members..You have a big room buddy in cubic feet it will take alot of system to attain volume imo for a grand even used..Another you may find would be proacs in that range .I have a home theatre room seperatley then 2:2 room its about that size.I have a set of whafedale floorstanders in that price range used with a 190 w class d pioneer elite 7:1 set up .I find that when i,m running in 2channel mode its takes some juice to get some volume .But certainly possible to achieve go with a efficient spkrs 90 db .Jmho ...
good luck .
enjoy the music
good luck .
enjoy the music