Hi. I am thinking of buying a Beyerdynamic A1 headphone amp. The What Hi-Fi review says that you almost MUST use it with the T1 headphones. I have Grados PS1000. Am I wrong wanting the A1? Should I want some other headphone amp instead? Many thanks!
Yes, you are "wrong". You can spend half the cost of that amp on a fine headphone amp that will happily drive those headphones. Graham Slee, NJC Audio, Lehman, Matrix, seriously, even below £300 you'll be fine.