Hi all; I'm getting my AX8 soon and already have a number of pairs of monitors I could use with it (since it's what I have all my sound-systems going through in the house): JBL305s, Adam A3Xs, and Rokit 3 G5s (no sniggering at the back please; I can't get rid of these fast-enough!). Currently the plan is to use the JBLs, but those are already connected to my Echo dot and form the backbone of my main/non-critical listening system. I'd love to be able to do this: * AX8 + Echo connected to mystery box * Mystery box connected to headphones (through amp or headphone out) and Speakers * Respect for balanced outputs (I live under huge antennas ) Unfortunately I don't know what such a piece of hardware would be! Mixer, Receiver, whatever; I just don't know much about this side of the hardware. Ideally I could just change the input from a remote or front button, and go from listening to music through the Echo to using my AX8. The entire signal path would be balanced (since that's how I'd wire the AX8 to the JBLs anyway). Note: another option may be to go from SPDIF to DAC to headphone amp + speakers, but that just strikes me as convoluted in the grand scheme of things. Thoughts? Thanks!