Janis, Robert "Amplifiers" Auto Sound & Security January 1991: 45-47,104.
https://farm2.staticflickr.com/1820/...ca7bfd46_b.jpg
https://farm2.staticflickr.com/1877/...15e177fc_b.jpg
https://farm2.staticflickr.com/1872/...5b451b63_b.jpg
https://farm2.staticflickr.com/1894/...bf31387e_b.jpg