I have 1 3500 on my subs already and I'm thinking about running a second and strapping them together. I really just want to see what's out there and if anything is in my budget, which isn't completely set, because I'd also need to get another alt and a couple more batteries. If you have one, go ahead and shoot me a price and I'll see what I can do with that. Only thing I HAVE to have, other than a 10/10 mechanically, is dual power/ground inputs (newer model). Thanks.