I have been using CX 400 over a period. Now I want to buy a new in-ear headphone. I have decided to buy Klipsch S4 which seems to be quite popular within $50 range. I listen to Metal Music mostly and also Hard Rock sometimes.
Firstly, how is the audio quality of S4 in terms of bass, mids, treble compared to CX 400.
Secondly, is there any other better option around this price range.
Any advice would be greatly appreciated.