DIY bluetooth audio amplifier (Upgrade from old amplifier)

This video introduces how to make Bluetooth audio amplifier. Adding a Bluetooth audio receiver module to the old audio amplifier.
the Bluetooth audio chip is QCC3003. Especially it has a 24-bit stereo audio DAC chip PCM5102A, the sound has more sound detail, a high range of dynamic. The level of promotion is very large. Receiving chip uses Qualcomm QCC3003 and adding PCM5102A as decoding output, the combination of two high-end chips make details more excellent.
The previous video of restoration: • Restoration old audio ... , This video showed how to refurbish my old audio amplifier.
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