Good day mates, Well in the DIY world I am a newbie, but from what I've seen, it seems if I build my own stuff, I can undercut commercial stuff big time. With that said, I was looking at the GR Alpha LS, just because it looks like a beast. And it probably has more bass otuput than any speaker I've ever seen. I have a couple of questions since I've never build a speaker. A)How would you say these speakers sound for those who have listened compared to say..... the popular ones roaming around, Onix Reference, Paradigm 100s, Magnepans, Klpisch, Polk LSi, the list goes on..... B) I can make an enclosure easily, BUT, I've never worked with internals of a speaker, is this tricky/hard? I work in technical production theater, so I have to make things everyday. C)For behemoths like that, what would be matching surrounds and a center channel? D)I'm looking into a MArantz MM9000 Amplifier I beleive. Its rated 170 watts into 5. Is that a good match? Alright thanks guys, I've searched online but haven't been able to find one review.... Hopefully someone here has some expertise in these.