after listening to a range of maggies on other people's tubes, I'm not convinced that you can get enough juice at a certain budget. I'm powering a pair of 2.5R magnepans with 160w per channel @ 4ohm, and it's okay but not great. I also have a second system with MMGs, and hope to get a more powerful amp for the 2.5Rs so I can move the other amp to the MMGs. 160wpc ought to be okay for them, but the 2.5Rs are twice the size and should be fed no less than 300wpc to open up fully. I'm looking at the stingray, a nice tube amp, but I'm also looking at krell, bel canto, etc: and so far I doubt you can get there with tubes unless you're looking at higher price ranges, a rogue or a mcintosh that would give you at least 300 or 400 per channel.