RKV Mark II

The root of the famous AudioValve amplifiers is the RKV - the very first invention by Helmut Becker in 1982 and is protected by patent No. DE 3200 517 in germany. The basic concept is founded on a conventional OTL principle circut. To find a circut and a harmonizing tube for high output current and very low resistance wars one challenge Mr.Becker has to master. The second success he had was to realize high output power for nearly all different headphones and their impedances - 32 to 2000 ohms.