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In this video, I will tell you how to distinguish a broken TDA7850, how to find out what amplifier is in the car radio. What you need to measure before installing or buying a TDA7850. Examples of replacing an amplifier with a TDA7850 - https://magnitolog.ru/tags/zamena-usi... Amplifier comparison table - https://magnitolog.ru/63-slider/138-z... Ordering a TDA7850 amplifier - https://magnitolog.ru/glavnaya/magazi... TDA7850 amplifier + capacitor - https://magnitolog.ru/glavnaya/magazi... The cost of the TDA7850 amplifier is 450 rubles. The cost of the Pioneer PA2030A amplifier is 500 rubles. Delivery across the Russian Federation by Russian Post is 200-300 rubles.