wiim amp chpset confirmed class-D amplifier chip is TPA3255. same as aiyima A07 and Fosi Audio bt20a : r/BudgetAudiophile

Aiyima Audio A07 Max Stereo Power Amplifier 300W x2 TPA3255 Class

AIYIMA A07 TPA3255 vs Fosi Audio BT20A, Product Comparison

AIYIMA A07 TPA3255 Power Amplifier 300Wx2 HiFi Class D

AIYIMA A07 - US Warehouse Ship

AIYIMA A07 TPA3255 vs Fosi Audio BT20A, Product Comparison

AIYIMA A07 TPA3255 vs Fosi Audio BT20A, Product Comparison

AIYIMA A07 - US Warehouse Ship

AIYIMA A07 TPA3255 Review (Amplifier), Page 105

AIYIMA A07 TPA3255 Power Amplifier 300Wx2 HiFi Class D Stereo

AIYIMA A07 - US Warehouse Ship