unbornchickenHeck yeah they work great with the X7! And also the Creative E5 DAC/AMP too! Im very impressed with the sounds coming outta these through both of those with .FLAC, .OGG, even .MP3 sounds good. Mind you not as good as .FLAC and thats through both my HTC 10 via bluetooth and also the headphone out on my asus ROG laptop.