With headphone jacks going by the wayside, I find myself having to consider bluetooth for headphones.
I currently have a pair of Sennheiser HD.440BTs and they're pretty good, but I've had wired headphones in the past that sound better to me. Some of the issue is that these headphones support AptX but iOS devices do not, so the sound quality isn't as high when listening from my iPhone when compared to listening using the cable or from my Mac (macOS DOES support AptX).
Does anyone have any recommendations for a bluetooth equipped headphone amp? AAC support is a must as it seems to be the only codec other than the default SBC which iOS supports.
I think I'd prefer a portable one, but a desktop one could be of interest too.