I have a MC-2505 or a MC-275 tube amp to drive them with when they're fixed. I like the sound of the Maggies but they'll never replace my old Altecs. I've lived with them too long to be objective about most other speakers. Besides, the Altecs just seem to have a more musical sound. Probably just me though. The Pioneer I bought because I'm sure someday my boys will tire of the video games and want to hear something decent.