Fosi Audio BT30D VS BT30D Pro and Aiyima A07 Class D Amps

Just a organic review of Fosi Audio's BT30D and BT30D Pro Class D Audio Amplifiers. I didn't have the Aiyima to show but I feel it's in the same class/category of these two Fosi Audio Class D amps.

Amazon US : BT30D Pro: https://amzn.to/3FofED4
Amazon US: BT30D: https://amzn.to/44PhW8J
BT30D Pro: https://fosiaudio.com/products/fosi-audio-bt30d-pro-bluetooth-5-0-2-1-channel-540w-power-amplifier?sca_ref=8632840.OEtgdZ0UZJ
BT30D: https://fosiaudioshop.com/products/bt30d-bluetooth-5-0-2-1-channel-power-amplifier-with-bass-and-treble-control?sca_ref=8632840.OEtgdZ0UZJ
48VDC PWR Supply: https://fosiaudioshop.com/products/fosi-audio-48v-gan-power-supply?sca_ref=8632840.OEtgdZ0UZJ