[yolgezer]

Hi,
I'm interesting at portable amp for my Grado Sr 225

,I look at several models of amps,models.

I'm interested at xtra amfi and Vibe V5S models.

Xtra X1 uses DAC: OPA2134
Vibe V5s uses many options like M6172/6171, AD8620/8610 or Norm suggesting
AD825


Which Op amps gives me bright,clear and more detailed sound?.

Thanks.