Audio Research VT-100 just so there is no confusion let’s call it the Mk1, which is the first in the series of three VT-100 amps. Looks great, performs well to my ears. I probably needs a tube changing in the near future, but does play with no issues. Selling at a price that would be fair if new tubes were needed. Local pick up(as is) reflected in the price. This amp is now powering a loudspeaker always described as difficult to drive with absolutely no problems(in fact I love the sound). I gave it an 8 rating just to be modest, but if you look at the pics all angles are shown, it’s in perfect condition.