I think you would still be using the onboard headphone amp if you used an outboard amp to further increase the amplification of the headphones. Unless you have difficult headphones to drive, I don't feel this would be beneficial.
K
K
Would I benefit from a headphone amp?
I have a TOTL Sony D6C cassette walkman and Grado 325 Headphones. Could a headphone amp worthwhile enhance this combo? It sounds wonderful as is but Im greedy for more. Is the headphone amp in the Sony of a good quality that I would only hear a marginal difference? Also there is one output and input. Can I use a split cable and get stereo sound? Thanks