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LM3886 Chip Amp Project

As a fan of discrete design and build, I was intrigued by all the talk about the TI LM3886 Gain Clone Amplifier (how good it sounded). This single package design delivers 50 watts into 8Ω (Vcc = ±35V), with minimal external components. So I ordered a PCB off eBay for $5.50 US (XY Power Amp), and started my build to see for myself what this little 11 pin package can do...

LSchematic from the TI data sheet
Parts list and price (US $):
The amp board was easy to assemble, and the power supply boards also came from China via eBay. I was amazed at the sound/power this amp produced. It was clean and quiet without any colorization that I could detect. It drives 8 or 4 ohm loads without issue. Given the amps simplicity, I now understand why this chip is so popular, it is easy to create a clean, powerful amp that performs…
First test of the power supply and assembled amp board:
Right side assembly: I used an old Luxman transformer I salvaged out of a 60 watt receiver (R-115 I think, the newer crap, not the old Luxman from the late 70’s that was awesome), it fit the case and suppled the voltages I needed, plus it was free…
Final assembly and test !!!

LM3886 Chip Amp Conclusion:

I got many years of enjoyment out of this little amplifier, it was my office amp. I powered a pair of Polk Audio bookshelf speakers with it and was always impressed with how clean it sounded. This project was well worth doing and would recommend trying it.