Spent some time with it, really love it

Bottom line: this is a great app that sounds better and more faithful to the original recording than Apples music app, even without using the additional processing. The additional processing (cross feed, eq) is a bonus and with it applied judiciously you can create a pretty solid audiophile experience on an iOS device.

Got a new pair of Onkyo headphones (which I really like) that sounded too harsh in the upper-midrange in Apples music app. I tried Can Opener and it immediately (even without any processing applied) provided a less harsh, more contoured, more faithful reproduction. I bought the Hi-Fi Pack to try out their sample rate conversion for my higher sample rate Apple Lossless format files. Sounds good. Not a dramatic difference but smoother, seems to add a bit of detail, though it is not necessary to get a great sound. Other nice touch is a more fine-tuned volume control, and I love the dosimeter. Cross feed is very well done, but I prefer a subtle setting. Fortunately, Can Opener gives you complete control over the amount and angle of the cross feed. Great app. Thanks.

LobsterTelephone about CanOpener — for Headphones