headphones-amp combination


I have been curious and following several headphones and amps on the net just to adquire some knowledge about them.
Now I decided I want to get a portable amp and a paor of headphones that match the same level of musicality of high end separated or tubes.
I am a novice in this field.
Thanks
Budget 1500.
128x128junglern
Recently ordered a Rupert Neve Designs RNHP headphone amp......  can't wait to try it with my Grados.    
Update:

The Rupert Neve Designs RNHP headphone amp is phenomenal.    It took my Grados to a new level.   This amp makes everything more intelligible,  it is spooky the levels of detail it unlocks from material you thought you knew well.  It 's roots are in the studio environment so it is built like a tank, it is one solid unit.  The volume control is super smooth and it has that "instrument" quality feel to it. 

It can drive the Grados easily and can drive my 600 Ohm Beyers with ease too.  Sure $500 ain't cheap, but I think it is worth every penny.  
I own Kennerton Odin V2 headphones driven by Chord Hugo 2, this pairing is just beautiful.