I see that.
Well, all I can tell you is the AR9LS i is a beast to tame,ive commented extensively on that in other threads.
Once tamed, tuned...there may never had been better....or ever.
I tamed mine. 4 times inside the Kings cabinet.
No denying the 3 is good, or at least 3a that i know, but its just not as accurate. Great tones, but the 4 way is more precise/accurate. AR did not release the LS series ready to rock.
Do keep us posted.