Fosi Audio BT20A Pro TPA3255 Bluetooth Amplifier 600W Hi-Fi 48V GaN power Supply
Compared to the standard BT20A, the BT20A Pro features improved circuit design and higher overall efficiency. Model: BT20A Pro. Amplifier Chip: TI TPA3255. BT20A Pro Power Amplifier ×1. Included Power Adapter: 48V GaN.