Masimo makes pulse oximeters. The finger clips that measure blood oxygen on hospital wards. In April 2022 it paid $1.025 billion for Sound United, the holding company that owns Marantz, and in September 2025 it sold that same portfolio to Samsung's Harman International for $350 million. Three years. Two-thirds of a billion dollars gone. And the brand Saul Marantz founded in a Queens basement in 1953 collected its eighth owner.On 15 August, that brand ships the Model 70, a £749 integrated amplifier wearing the naming convention Saul invented - Model 1, Model 7, Model 9, Model 10B.