Yes If you want to go with 2 cabs...then go with the 2 410's. I ran a gk 1001rb II with an swr goliath III 410 and swr sob 115 set for about 2 years and the 115 was the weak link. when it came to low end it sucked!!! i ended up getting another 410 about a year ago. big difference!! she kicked butt unlike the 115 and had way more bottom end.. Now because i have always been trading up on stuff. i ended up just a week ago trading my older Goliath III 410 for a SWR Megoliath 810...cause i was tired of packing around 2 cabs. i still do have one 410 for the small stuff if i so need it, anyways i could not be happier. That Megoliath is one masterpiece of work. when it come to low end the 2 410's can not touch it...and that is saying alot cause they kicked a$$ compared to the 410/115 setup. I just had it out here this weekend playing at a big church. and for the first time ever i had to back off my bass and add a lil bit of mids to it cause it was putting out to much low end...if there is such a thing as to much low end. very very happy, cant believe it has taken me 10 years to get one...lol.So my vote is if you can afford it,keep your 410 and just get yourself an SWR Megoliath 810. eazy to move around by yourself thankx to the shower bars,skid rails,and wheel's.and if you have some one to help the handles on the bottom are awesome!!. and if money is a problem like it is for me at times.... i just went with the 12 month payment plan, which made paying for it not hurt so bad!! Best Of Luck with whatever you decide. Cheers Mate!!~Elliot