Dude, you need to get firefox. It has a spell checker. This is getting annoying. Your sentences are horrible and the words you spelled wrong are almost elementary. I usually don't care about slang and internet shortcuts but sometimes it is too much. Please download firefox and install it. But on the subject, I think the HDC3s will get louder but the iXLs will sound better. Chop has heard the 10" iXL I built for my girlfriend. Ask him about it. And Enellz has the HDC3s. I think he heard them too. Also I think the HDC3 want to be in bigger boxes compared to the iXLs. If you are going to get the HDC3s, I'd get them soon because that price is for a limited time, for customer appreciation sale. I think the Mach5 prices are in Canadian dollars so it will be cheaper in US dollars.