The Comparable Cassette
Thanks to two developments and a promise, the compact cassette has finally become, as they say, a force to be reckoned with.
Development one, perhaps the most significant factor in the changing picture, is the ready availability of B-type Dolby devices (which are single-band Dolbys, acting only on hiss frequencies). Advent makes two that can be used with any tape machine, cassette or otherwise, while Fisher, Advent, and Harman-Kardon (as of this moment) are producing cassette recorders with built-in Dolby-B. No doubt there will be others by the time this gets in print.