I paired my no longer with me AEGIS One with the following amps.
Scott 299D, PP 7591 tube.. sound too warm for dynamic music and drum test tracks, but very good for female vocals and light jazz. if you like Percussions stay away from the Scott 299D
Scott St70-II, PP el34 - more dynamic presentation than the Scott 299 D
Marantz Vintage integrated .. very "dynamic" presentation in a bookshelf sense, ganda sa drum test tracks !!!
The AEGIS one is a very forgiving loudspeaker, Colored ? YES, but depending on the coloration that you like, this could be perfect speaker for you.... it was perfect for me at the time (Small room). Slight hump on the bass and a bit rolled highs.. makes partnering with SS amps easier and near field listening is not too fatiguing...
Will eventually get one in the future when budget permits for a second system
Which amp to get.. really depends on the music you listen too... as the saying goes, jack of all traits, master of none... unless you really go high high end.