Downloading music from YouTube in 320kbps

Up until about 3 weeks ago, I've been able to download music from YouTube in 320kbps - all songs have been checked with Fakin' The Funk?. I was downloading from grabfrom.com, then mp3convert.org, then when those two stopped downloading in HQ, I bought ByClickDownloader, now all 3 produce underlying sound of 128kbps. I have YT Premium and downloading from YT Music yields the same results.
What changed?
Is there a way to download music in 320kbps from YouTube?
If not, where can I find the biggest range of EDM for download in HQ under a subscription, as opposed to a per song basis (for DJing)?