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This time I repaired the TOPPING PA5 digital amplifier, which is a fully balanced design. I bought it because it was a junk item that wouldn't turn on, but the amazing thing about this amplifier is that it only has balanced inputs and no RCA inputs. My favorite DA converter, the SMSL SU-8, supports balanced output, so I connected it and tested it. *Some people say that balanced connections are only useful for noise prevention, but since many amplifier ICs are made with balanced inputs in mind, I believe that balanced connections also have a large impact on sound quality because they bring out 100% of the amplifier IC's capabilities. Member recruitment Anyone who wants to feed sweets to Big Brother Kumagoro / @kuma56diy If you want to know what tools Big Brother Kumagoro uses, check out the Street Junker Association website #junk #repair #amplifier