Dynaco Mark IV Tube Amplifier monoblock pair in matching box. Packaged pair of dynaco mark IV amplifiers. One of the amps paper cover shows wear, otherwise amps appear to be retail sealed. Reluctant to open and test since there is more collector value wrapped. The item "Dynaco Mark IV Tube Amplifier monoblock pair in matching box" is in sale since Saturday, October 3, 2020.This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "dj_evil_twin" and is located in Upper Lake, California. This item can be shipped to United States.