I just received mine today and unfortunately, no go. No sound. Problem symptoms: remote not working; input button isn’t pressable; gain button is pressable but lights on both sides are on.
Thoughts?
I'm sorry to hear that, but the good news is that (as others have said and I experienced and I wrote about just a bit before your post), there's a simple solution to what is probably wrong!
The front panel is probably slightly misaligned (and I mean in the sense of millimeters: nothing looks or feels off or loose or anything) causing the buttons to not "input" into the amp. That caused mine to become unresponsive (out of the box it worked fine; after I tilted it to unplug it to put in a tube--I simply tested it without a tube at first--that probably moved the front panel/cover enough and caused the buttons to misalign), and the buttons to not be "clicky" enough (they did depress, but felt "off" or weren't depressing in the way to feel effective), no matter what else I did (turn amp off and on, remove/reinstall the tube, run with and without the tube, use the remote, etc).
All I did was just kind of try to move the front panel/cover around a bit with moderate force (like push down on it from the top or sides). I didn't try to pry it at the bottom like others have, and I didn't feel or hear anything "click" into place, but when I pressed the buttons after just pushing the panel/cover around, then all of the sudden the buttons felt properly "clicky" (just like they did at first out of the box) and when I turned it on everything was responsive again (could switch between tube and SS, switch gain, etc) and the sound was back on - in both modes.
Since then, although I've only been playing it for around a hour (listening to it more now, and will some later today, and will report back if there are any other issues), everything is working fine in both tube and SS mode and the remote works everything too.
I hope you can do whatever I and others have done to get the buttons to align properly for then all should be well.