The important thing--the only really important thing--is to buy what you like. If you like the Bostons, then they are right for you. If you want to be sure, listen to them again with a different amp. But I doubt the amp is a major factor here, unless it was seriously underpowered and clipped into the less sensitive speakers (always a possibility).
Sounds to me like you're going about this the right way. Don't let anybody dissuade you.
Sounds to me like you're going about this the right way. Don't let anybody dissuade you.