Sound by Singer can be a little snobby, depending on who you deal with, though they are generally friendly enough. But their headphone setup is much better than many places (only Grado, though); last time I was there, they had an Arcam CD player set up, dedicated, with a Musical Fidelity X-Cans V2, and the entire current Grado line (PS-1 excluded) on a rack in the open for you to plug and play with. They also have a relatively extensive CD collection, but I always bring my own. They also stock the Grado head amp, but it was not set up last time I was there.