Hello everybody, in my country there's a fash deal for the Sennheiser Momentum 2.0: 99 EUR (85 pound).Actually I use the SoundMagic E10 in-ear with the smartphone (Galaxy S3), but at home I also have an amp with the headphone input (Marantz PM6004).Is it a good upgrade to buy the Sennheiser Momentum 2.0 at that price? It's a tempting offer, but can I hear the difference in the daily use with only the smartphone? And with the combo DACMagic + Marantz? Thanks for your suggestions, I am a noob about headphones.