Thanks Shailesh for your detailed review. This is a killer amp/preamp combo.
I actually requested Aniket to design a hi quality amp which should be easy to build and economical. He has done an excellent job on this combo. The Power amp can be configured into 75W or 120W per channel. It has onboard power supply and protection circuit. The user only has to connect a transformer, minimum soldering requires as it comes as fully soldered board, including PCB mounted heatsinks. The Preamp is very good too and can be use as headphone amp as well.
Here are few builds and reviews on Lencoheaven https://www.lencoheaven.net/forum/index.php?topic=30648.0
I am posting few pics of PCBs and modules