Doug917\'s shootout would tend to steer me toward the 990 (if I hadn't gone that way to begin with), and with the speakers you are considering the 7075 would probably be a good fit (115W per channel at 4 ohms). Of course, stepping up to the 7125 could give you more flexibility in speaker upgrades down the road while still posing no problem with the Orbs.

There are a number of good speaker brands out there there don't take up too much space, but there are not many speakers with a cabinet style and footprint as small as the Orbs. Macharya here in the forum uses Orbs with a Model 950 and Model 7100 and seems pleased with them . There's a thread from around the time macharya picked up his Orbs that may be worth reviewing - the Orbs do deserve some special consideration when setting up the bass management.

Online alternatives to the Orbs that might be worth some consideration would include Hsu's Ventriloquist , SV Sound's SBS system , a few different options from AV123 (either the Onix Rocket or the X-series), Axiom Audio , and probably a couple more I'm forgetting about that offer bookshelf speakers. The Ventriloquist in particular is pretty easy to blend into a space. A number of other manufacturers that sell through standard channels offer good bookshelf speakers that might be an option, if bookshelves aren't going to exceed your limits.