top 3 sets under 550..
cdt es62i
pioneer prs
dls Iridium 6.2i
the dls and cdt are tuff, the dls has a nod better mid range 2000-3000 while the cdt sounds warmer and punchier with better extention..
the dls is dry the prs is dark but bold while the cdt is smooth and slightly warmer..