I'm all for high performance budget gear as anyone but I can't honestly say that any of them sounded great.
Some were surprisingly good.
I remember a 1980s Rega Planar 3 / AR 18 bookshelf system playing Dylan's Blood on the Tracks with far more detail than any system I'd heard before, but in hindsight it was still a relatively small scaled sound in both image size and bandwidth.
I don't think that any inexpensive system can sound great, if they did, that would be the end of the so called 'high end', there and then.
Unless of course, there already is a brilliant budget full range loudspeaker out there that I not yet heard?
Did someone mention Polk?