Sonic Frontiers is bankrupt?

No far from it.
Sonic Frontiers is wholly owned by Paradigm.They are strong and they are more involved in the Anthem side of HT gear for know.
A high end line of SOnic Frontiers HT gear is on the drawing board.

As I understand them, the facts are as follows. Sonic Frontiers has made the decision to exit the tube business. This is because their Anthem Home Theater business is doing exceptionally well while the 2-channel tube business is slowly decaying. They will of course honor all warranties and continue to sell loads of Anthem Home Theater gear. They are totally out of all Sonic tube products. I wouldn't be surprised to see a line of Sonic Frontiers, solid state, hi-end Home Theater products later this year. Walter

Let us have a moment of silence as another 2-channel tube business slowly decays.

I remain,