Hey guys i was recommend here by denim. Be patient i don't know much about stereos, i'm a motor guy. Here's my situation, my explorer has an xtant 3300x powering then entire stereo system. It burned out about 3 weeks ago, supposidly a shop is fixing it, but they say they are having trouble getting parts. I'm growing impatient because i have nothing at all, because i have a non powered eclipse head unit. I'd like to replace it with a xtant 603, but at the moment even a refurbished one is a little much for my budget. Could i get away with using a xtant 403 to power the whole thing? Pics of the stereo are on the second or third page of my cardomain in my sig. I have a downfacing box with 3 10 inch mtx subs, but i'm not real sure what kind. 3300x 403 Stats are a couple pages down on each. I can get the 403 cheap, or i can hold out for mine to be fixed, which the cost i agreed to is 110, on top of the 30 i paid them to look at it, it's at a repudable place. Would i notice a big difference in sound with the 403? Thanks, Joe