Here is what I am looking for, really looking to push things in a new direction for me. Been doing a bunch of direct and IEM gigs. It is also rare that I need to carry the house, but I occasionally will and want one solution. Recently purchased (haven't received yet) a Monique preamp. I want to add the highest quality powered monitor I can find, that will enable me to just run direct (not use it) or bring the powered monitor to accept my aux feed, providing me my bass and a monitor mix. I also want to be able to put it behind me as a backline, maybe stack two, as a traditional bass amp. Beyond sound quality some of the things I'm looking for is: powered, wedge and vertical, the box is shaped so that you can stack two high if needed, meaning the top isn't slanted like a K12 or EV ZLX. reasonable weight either two in the 40lb range or one around 50 give or take. It has to sound absolutely great with bass as a standalone amp. The best I've come up with thus far is a JBL SRX815P. Other contenders are EV ETX-15P, ELX115P, QSC KW122, Mackie SRM650 or 550 and JBLPRX715 or 712. These are at least the one's I know I can try at the local music stores, I've read about some names tossed around like Meyer's and L'acoustic. Of course Anthony Jackson uses a Meyer's powered cab that weighs 130lbs and doesn't function as a monitor. I'm concerned some of the smaller one's won't carry the low end the way I want but I am open in either direction to two smaller cabs or one larger. Recognizing I could be setting myself up for failure I'd like to reach volumes exceeding what a traditional 2x10 bass cab will put out and be closer to a 4x10... Any thoughts, real world experience?