Fosi Audio BT30D Pro is the upgraded version for BT30D. All-NEW Black Aluminum Appearance. BT30D VS BT30D Pro: MAX Power Output: 50 Watt x2+100 Watt VS 165 Watt x2+350 Watt, Amplifier Chip: TPA3116D2 VS TPA3255.
Fosi Audio BT30D PRO TPA3255 Subjective review
Fosi Audio BT30D Pro Reviewed by @ArtykFloat
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Fosi Audio BT30D PRO Bluetooth Sound Power Amplifier 2.1 Channel Amp Audio Reciver for Speaker Subwoofer 165Wx2 +350W BT30D PRO - AliExpress