As a companion to my cascade 1968 K200 Model 795 PA, owned since 1969, I recently acquired a blue metallic K100 amp with two matching columns, each with four 8" speakers. Someone has removed the factory model/serial# tag so I am having trouble identifying this new addition to my collection. Each column has the Kustom Electronics logo plate and the amp has stand mounts on each side. Any suggestion would be welcome. Thanks!