It’s tough to beat the Maggie 1.7i for the money, however, to do them justice, they have to be AT LEAST 3 feet out from the front wall. 4 to 5 feet is much better, unless you have some diffusion behind them. Also, they don’t have much bass impact, so for me, a sub is a must. I tried keeping them 2 feet from the front wall and experimented with all sorts of positioning (toe in/no toe in, spacing between them, tweeters in/tweeters out) and nothing worked well untill I pulled them 4 feet out into the room. I don’t have diffusion behind them, so that may have helped with them closer to the wall, as I was told by the dealer. Due to the sound coming out of the rear of the planers, you run into phase cancellation problems when that sound bounces back off of the wall.
I’m not familiar with your amp, but I wouldn’t go with anything less that 150 watts at 4 Ohms. They require lots of high current power to really sing. I’m using a PS Audio BHK amp which runs at 500 watts into 4 Ohms. Even with that power, I find the bass lacking without my two REL subs.
With that being said, when positioned properly and feeding them with the required amount of power, they can sound spectacular. I've not heard a speaker under $5000 that comes close.