Tone King amplifiers and attenuators were designed by Mark Bartel and are handmade to vintage specifications in the USA. We use the finest components and the most appropriate and advanced technologies to produce a consistent product with that true warm vintage feeling. Our famous Ironman II Attenuators allow our amps to be driven hard at bedroom friendly volumes and our retro looks are inspired by classic American designs – all available in a number of unmistakeable finishes.