If these are anything like the S2 like the poster above me has suggested then I would enthusiastically recommend them. For it's price range it's undoubtedly in the top tier. Bass is solid and not boomy. Mids are very good. Highs are adequate esp for the range.   Good Luck!

so anyone wanna comment on how these compare to other non custom high end IEMs?   Snagged ONLY one pair when I couldn't sleep last night