just got my shure se535 cl 2 weeks ago as an upgrade from my 3 years old shure se210 .....and i am very satisfied with it .....great iem indeed .....what had my attention first i plugged it to my i pod touch is the treble presence !! witch surprised me as i predicted to notice a big amount of bass first ..as it has 2 woofers per side ! when equalized via any eq app they respond very well with very satisfying bass and treble ....
.i ordered also fiio x3 also and it is on its way as an upgrade source with a warm sound signature and a hard ware eq for bass & treble which i guess i will find it more natural boosting than the eq app software .....over all it is a very clear with wide sound stage ..great imagining.. but SLIGHTLY limited in bass with my 4th gen ipod .... over all i am very pleased with its stunning sound quality