If the Sony speakers that you found are the ones I'm thinking of - they had a complex cabinet shape (vaguely Avalon-esque) - then they were much more than simply decent performers. I once owned a pair: nicely finished, wide bandwidth, and quite neutral, if not terribly dynamic. Great for jazz and small scale classical music, but maybe not the right choice for Mahler or Mountain.
Good Luck
Marty
Good Luck
Marty