after lots of research I found onkyo 9010 integrated amp +MA bronze 2 bookshelves best setup for my money to use beside my tv for both music and tv shows however the amp got two channel & only 40w/ch .I need a sub woofer like MA bxw10 for a good punch in some sort of musics but 9010 amp got just a line out not pre out or sub-out. can I connect bxw10 by line out to onkyo 9010 ? do you recommend to go for onkyo 9050 instead ? would you recommend bookshelves + sub or not ?