ALTEC 1570B / 1570 - 811A MONOBLOCK TUBE AMPLIFIER. NOT POWERED UP IN MANY YEARS, DON'T HAVE TIME TO DO ANYTHING WITH IT. The item "ALTEC 1570B / 1570 811A MONOBLOCK TUBE AMPLIFIER" is in sale since Saturday, April 25, 2020.This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "jdmsales" and is located in Savage, Minnesota. This item can be shipped worldwide.