I agree with the Klipsch comment! Very good speakers for the money, and very efficient.....easy to push! I personally have spent much cash on my system over the years, and also love to rock out! That being said, when sitting in the listening chair, with the volume cranked up, and I mean helicopter in the room with you loud, it's still only 90 to 95db, in the listening chair.
I don't know how rock concerts come up with these big numbers, think it must be because they are pumping out pure distortion. At 90 to 95db in my listening room, you swear you could pound nails into the wall with the bass, incredible!
As for what type of speaker to buy, I don't think electrostatic or planar are the way to go for you! Both can be great speakers, but generally like lots of power to get the bass working well, which all starts to cost you money. For a reasonable amount you can get some nice Klipsch.......and get the volume bug out of your system!