Anyone know of any services I can use to upload an audio file to that will enable me to make it a private streaming link?
I know soundcloud does this but there’s a label I want to send a track to that’ll only review private streaming files. They don’t accept soundcloud subs.
so they want soundcloud but not on soundcloud?
They wont even look at a private linked soundcloud or they dont even have a dropbox?
Do they even want demos… strange way to work…
they’d prefer CDs I think but it’s a big label and a long shot for me so I thought I’d try their other preferred method. 
Well if you do find one make sure you share 
If you use Dropbox, you can just provide them with the URL to your public folder.
if you have web hosting you could just upload the file to your host & then password protect it.
if it is a wav or MP3 then quicktime will automatically stream it.