• In the 1970s, McIntosh grew in both product selection and new product categories. Loudspeakers were introduced along with a family of matching amplifiers, tuners, and preamplifiers. Glass faceplates and the signature blue amplifier power meters solidified the trademark McIntosh look. This was a great time for McIntosh and the audio business.
  • The Grateful Dead unveiled the “Wall of Sound” on March 23, 1974, at the San Francisco Cow Palace. 28,800 watts of McIntosh amplifier power was used in this fine sound system.
  • McIntosh loudspeakers continued to gain popularity throughout the decade. The XR7 speaker shown was the flagship model that was made to be stacked two high for big sound.
  • First released in 1972, the MR78 tuner redefined the FM tuner performance. The rest of the industry rethought and refined their tuner designs in response.
  • Frank McIntosh retired in 1977 and Gordon Gow became President. Gordon is shown with the powerful microscope he encouraged dealers to use to check Phono Stylus.