Engl is a German amplifier company that has been around since the early ’80s. Nowadays you’ll see endorsements from big names such as Ritchie Blackmore, Marty Friedman, Jeff Loomis, and Michael Romeo. This particular ad for the 100 watt Straight head, on the other hand, has quotes from Buck Dharma along with Peter Harris and George Marinelli from Bruce Hornsby and the Range and Pat Buchanan (!) of Hall and Oates.
Taken from Guitar World, June 1989.