tough question, I use Amirons only for video calls and PC video listening now as they are closed back and block family noise a bit. They are good HPs but nothing to compare to Arya+5k combo, maybe bass impact is little bit better, but has resonances in closed chassis.
I can compare sound of Ananda BT to Arya+5k as this was my last HP set for music, booth connected with LDAC 990k.
First I must state that I'm listening to music on a moderate SPL, on AnandaBT it was 60-70% max. and with Arya+5k is android volume set to 11(of 16) and 5k volume to -10dB (678mV). Sound from Arya+5k is more analog like with less harshness and better controlled bass and treble, overall it is smoother. That is main difference. Soundstage is more precious but in terms of space dimensions they are close together, maybe this is limited by provided amp power. Instument separation and localization is a tad better on 5k. I think Aryas are clearly limited by 5k here.