Onkyo M-510 Power Amplifier with a fresh restoration: Ultra rare, ultra heavy, and ultra beautiful tubes It's a very cool and

It's a very cool and rare piece of vintage audio gear and one that should be treated with care

I'm located in NE Ohio

A total of 124 components were replaced over many weeks of hard work

and documentation

Please let me know if you have any questions or prefer to offer trades / payment options etc

Onkyo M-510 Power Amplifier with a fresh restoration: Ultra rare, ultra heavy, and ultra beautiful tubes It's a very cool andAs 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 its 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.