TEAC now introduces the TEAC Noise Reduction Units with patented Dolby process expressly designed for home tape recording applications. These units may be used with any recorder, reducing tape noise and hiss to unbelievably low levels. Upper frequency response is extended and the signal to noise ratio is significantly improved.

AN-180
The TEAC AN-180 is a simultaneous record-playback control center incorporating the Dolby "B" type noise reduction system. Built in mike and line preamplifiers maintain mixing capability or add this capability to recorders not already possessing it. Large professional type VU meters serve a dual purpose, as calibration meters for the Dolby level setting, and as recording level indicators during recording or playback. The AN-180 also incorporates such features as an internal test tone oscillator individual output level controls, source/tape monitoring and a multiplex interference filter.

AN-80
The TEAC AN-80 is an economy version of the Noise Reduction Unit for those who do not desire all the convenience features of the AN- 180.

AN-50
Designed for external use with the TEAC series 20 cassette decks. Adds Dolby process to those decks lacking this feature.