Onkyo M-510 Power Amplifier with a fresh restoration: Ultra rare, ultra heavy, and ultra beautiful

As rare as it is heavy (insanely), the Onkyo M-510 is a power amp from the golden era of HiFi audio equipment.   Onkyo spared no expense when they created their flagship amplifier.  The physical build quality is second to none and the electrical design is complex, interesting, and robust.  Did I mention it’s heavy?  This massive beast weighs about 150lbs. Onkyo sold a limited number of these puppies in the United States and very few are left in circulation.  I dedicated hundreds of hours or research and labor into this restoration and I made the commitment to restore this amplifier with the best quality components I could find.  I’m honestly amazed at the craftsmanship and pride Onkyo invested into this piece of art.  I created a YouTube series documenting my restoration to provide a reference for fellow enthusiasts and repair techs.  I went through this amplifier board-by-board and serviced everything while referencing an original service manual and digitized schematic (included with the sale).  This beast is location in Northeast Ohio and shipping is completely out of the question.  Local pickup or delivery available if we can work out the logistics for payment and mileage etc.  Please let me know if you have any questions about this beauty.  Here's a link to the first video in my restoration series: 

https://youtu.be/98gvNnLRF7Q