Improved the sound immensely from my iphone to my Grado M80 phones. I also use it as a mini pre-amp for my amplified speakers. Easy to set up.
I would recommend this to anyone who has a very good wired headphones im using my zst hifi headphones
Great additIon to my Grado SR89e headphones. Enjoy the pure sound provided by / through the amplifier.
Excellent in all respects except the under designed carrying clip. Too narrow for grabbing my belt; and I find that I have to clip it on upside down To keep it on my belt when Hiking. I’d rate it 97 / 100 !