Since you're willing to spend Magico money, look at what Sonus Faber has to offer in your size and budget. I just auditioned a pair of Cremona M's and mm-mm-mm. Geez Louise these are great virtual reality devices!
They're good on all kinds of music but they have several things to commend them for rock, including a clean, tight, fast, articulate bass, engagingly transparent midrange, air and detail that draws you into the musical experience but doesn't distract or irritate, and most importantly, they're very dynamic with lots of "jump", something that you want for rock. If the Cremona M's are too big for the room (probably not), you could go with Liutos or with a stand-mounted product. With their high excursion drivers and rear ports, even the stand-mounted SFs should make good bass in a 13x15 room.
Given that higher sensitivity combined with power handling is a good combination for rock, you may want to consider something from Zu Audio appropriate to your room size.