Hello fellas, first time poster here I have been using my ipad/iphone6s to stream SiriusXM to my small budget bedroom stereo via the headphone jack (using 3.5mm-rca splitter). I'm using some Elac b6 speakers with a 30w Topping amp. I've read that the siriusxm app, with the settings at high quality, stream @ 256kbs+. I mean, it already sounds really good...but if it can sound better with little expense, I'm all ears!!! Anyways, would it be a worthwhile investment to get a usb dac and connect it through the thunderbolt/camera usb cord, or is going through the headphone jack like I have been plenty sufficient for the audio I'm listening to? I don't really use itunes, flac, alac, or anything like that. I just stream. I have considered getting the airport express and using it to stream via airplay from my phone, but I'm not so certain its built in dac is any better or worse than my ipad/phone. I'm also looking at this: http://www.amazon.com/HRT-i-dSp-Hea...?ie=UTF8&qid=1455950690&sr=8-1&keywords=i+dac Any input would be greatly appreciated. I'm looking in the 100$ budget range. Thanks in advance!