Marantz Model 30 vs Marantz Model 40n Detailed parison

modal30The Ludlum Model 30 is a versatile and lhtweht display unit intended for use with with an external detector for alpha, beta, or gamma radiation survey.MODEL 30 is a wonderful example of a modern amplifier creating an unfettered, timeless sound. MODEL 30 is the equivalent of choosing a mechanical Swiss timepiece over an Apple