I'm on my second Chinese amp. The first, Music Angle 6n1p, class A, sounded good. It was even better after a capacitor & pre-amp tube replacement (7199 for whatever came with it). An unqualified American tech killed it. The second is a Sophia EL 34 A/B https://tubeintegratedamplifier.com/sophia_electric_el34_tube_integrated_amplifier_120v_s_e_t_music.php.
For six hundred dollars, it's unbeatable, esp. with a set of JJ EL 34s.
Neither are built like an American tube amp. Nor or they as expensive.