Mihalis,
Great review...the thread appreciates your pennies.
But, I am with Ozzy on the build quality. It may not be as stout as a $4000 SS amp but it is much, much nicer than a $300 CD player that is usually made with a plastic face and other cheap parts. BSGT seemed to have picked very nice connectors and a heavy chassis. At a 25lb shipping weight, I would hardly call it a lightweight component. At this weight, it would compare to many of the Sonic Frontiers components that were often noted for being well built and stout.
As for price and internals, well... they are made in the USA and I am sure that is adding to the cost of production. My two pennies, I would rather see my money spent on American goods, made by American hands, stimulating the US economy, than save a few buck on product made offshore.
disclaimer: I am a Qol dealer.