Portable headphone amps/DAC's/USB DAC's.
After acquiring a mini-collection of headphones (AKG K551's, B&W P5's & Monster Beat By Dr Dre Limited Edition Detox Pro's) for listening at home or on the move, rather belatedly, i've begun to dip my toe into the ocean of high & low resolution downloads.
Just wanted some recommendations for great sounding & low power consuming portable headphone amps., DAC's & USB DAC's for use with my iPad, laptop/Macbook Pro & smartphone.
Brands i'd be grateful to know your experiences of include: dragoinfly, FiiO, HRT, iFi & Meridian .
Any of these brand's mdels which stand out for you?
Look forward to knowing your thoughts.