Two of these RCFs have 800 Watts RMS in total and weigh 17 kilograms each. You would have a better weight/wattage ratio if you used either two JBL 515 XT or maybe Yamaha DXR 10. I'm not sure if a Bose L1 would have the same SPL.

Edit: Or you wait for the new JBL Eon 610 - it is rated 500 W RMS with a weight of 12 kilograms.