Source Options for TV & Music into Hypex Amps

Hi all,

Really wasn't sure what to call the topic or the correct place to put it so hopefully this is ok.

I'm looking to setup a room for mainly listening to music, but tv will occasionally be played also.
My current gear will be a new set of speakers i have just finished, 3 way active with Hypex amps.

My main questions relates to how I ideally get my audio sources to the speakers.
Eg. I was originally going to put these speakers in a different room and use the preouts of my Denon X3800h, but i've changed that plan and
only have an older AVR in this room with no preouts.

Ideally I'd like a digital source to feed the hypex amps for music. I don't mind how i get the tv audio to the speakers.
The main thing i want is a volume control so i dont have to modify volume on the hypex amps.

I really havent had much to do with amps/media streamers etc, aside from AVRs, so if you can point me in the right direction here it would be much appreciated.

Hopefully this isn't too vague. Thanks in advance!