Looking for recommendations on a portable amplifier to use with my HD600 and Samsung Note 8. I've never owned an amplifier before. Thanks

The more I read about the HD600, 650 and 660 the more confused I am on which to buy. They will be used for listening to music and amateur radio. Right now I'm using the etymotic er4 iem and I like them a lot but I'd like to try headphones do to the better comfort. Can anyone give me any...

Hi all, Great forum you have here. I've been lurking here for months and although I've learned a lot I'm still not sure which way to go in upgrading my q-JAYS. I think I like a neutral or balanced sound maybe even analytical, nothing with boomy bass. I'm considering the ER-4P, CK-10 and DBA-02...