I would like separate volume control for the speakers and headphone. I think I need something that takes an HDMI connection in, and has an HDMI out/pass-through and headphone jack out (or RCA line out). I have a Amazon Fire TV feeding HDMI to an Onkyo TX-NR525 AV receiver. I'm using the Onkyo for Audio (stereo currently), and feed HDMI from the Onkyo to the TV. The TV has a headphone connection, but there is no sound. The Onkyo has line outs (and pre-outs), but the manual says no analog output if it is using a digital input. I did try hooking up a pair of headphones (I figured I would hear something), but I didn't get any sound. I do have an old stereo receiver I could use for volume control if I needed to. I also may be able to use some cheap computer speakers. I am not looking for high fidelity for the headphones. I was thinking that something like this could do what I needed: https://www.amazon.com/dp/B00XJITK7E/?tag=homthelou-20 My concern is that there seems to be some limitation with the audio format going into converter, and the Onkyo manual doesn't mention any control of audio format output from the receiver. Any ideas would be appreciated, Thanks.