"Hovercraft also brought this one-off Dwarvenaut 20 that's based on a vintage Sunn Model T amp. It's voiced as a high-gain, 20-watt amp and powered by twin EL84s. Nial McGaughey of Hovercraft has incorporated both new-old-stock and replica components to make this amp look and sound just like an original Sunn Model T, but has tripled the preamp gain, and uses a non-ultra-linear output transformer to give the bass and low end more feeling and expressiveness. Retail on this special edition amp is $600."