Uploaded April 2026 | Updated September 2026, 2 hours ago

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I have two of these amplifiers from LC-12A powered speakers. Both are faulty and all is not what it seems. Let's fix them!

Part One of this repair is here : youtube.com/watch?v=91X1ivJulAk

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Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission.

DM40C
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Aneng AN870 (Same as Zoyi ZT219)
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Zoyi ZT-DQ02
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WinAPEX 268B Clamp Meter
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4KV Breakdown Tester
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NI-210SC Curve Tracer
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NI210SJ (cheaper option but watch my review)
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PCI POST ANALYZER
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FNIRSI 1014D SCOPE
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NPS3010W 30V 10A PSU
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DESOLDER BRAID (I use size 8045)
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Richard