What are the best over-ear, closed headphones for music on an Acer Iconia?

[Android Central Question]

I'm looking for a moderately-priced pair of over-the-ear, closed headphones - NOT noise-cancelling - to listen to Spotify on my Acer Iconia table. Does anyone have any recommendations, please? My research so far has led me to the Superlux HD668B. Does anyone have any experience of these headphones?