Pros: Good build quality ,small....warm sound stage.
I contacted Gary,the owner of Electric Avenue,and had many,many questions for him,as I am new to head-fi,and using headphones .
He guided me through all I should need to know,and answered all my questions promptly.
One of the forum members suggested I get the Fiio e-10,which I did,,as it also has a dac feature,and a bass switch.....I still use it occasionally,when I/m listening to the internet radio.
The main amp though, is the PA2v2..it just seems to have a sound quality ,that is a little warmer,and stronger.
If anyone is considering a portable amp,I urge you to contact Gary at Electric Avenue,he makes a great product, and is a pleasure to deal with.