Whether wearing the National, Valco, or Supro Badge, the phrase "Chicago 51" carries serious weight in the realm of vintage amplification. With just volume and tone available, this amp delivers a legendary ripping midrange-y tone, easily comparable with the much more expensive 5C3 Tweed Deluxe. This is a no-brainer purchase for anyone in the market - 3 prong cable has been installed and it's ready to go!