I don't want to put your speakers down. I heard them myself and i thought they sounded awesome. I did not turn them up too much though, so i can't say myself how loud it has to get until it might be a problem. It could even be an advantage for lower listening levels. That same guy reviewed the Arena 130 too and was especially mentioning that their tweeters don't get on the ears when turning them up. He was complaining that his Studio 530s (which he loves) get hard on the ears too when turning them up.
But of course most people don't turn up the music so loud anyways.
So my guess is - if you like a lot of details in the highs and don't listen extremely loud - JBL Studio 230. If you can live with a little more tamed high frequency response but like to turn up loud - JBL Arena 130.
If you want a smaller speaker that sounds lovely and is in between the two mentioned before (but maybe better than both) - JBL Stage A130.
But that's only my guess from my research.