The ValveKing is a series of guitar amplifiers made by Peavey Electronics. The series include the Royal 8, Micro Head, VK20 Combo, 112 Combo, 212 Combo, 100 Head and matching speaker cabinets.
In an attempt to help other Valveking users, members of Ultimate-Guitar's "Valveking Only Thread" have contributed to the creation of a Wiki full of information. The wiki includes various modifications (cosmetic and electronic), as well as EQ suggestions and more. http://ultimate-guitar-valveking.wikispaces.com/
References
Peavey ValveKing Wikipedia(Text) CC BY-SA