Dont know audiophile language but the difference in sound from my previous DAC/AMP combo was significant. Music became more smooth and life like with a more spacious characteristic as opposed to the more sterile or lifeless wall of sound I had with my previous unit. Currently prefer it more with my HD660S than I do with the D7200. My Composer has a lot more power than I need for my current headphones which will come in handy in the future. Looking forward to try higher budget headphones with it in the future.