Dolby A-Type Model 360 Noise Reduction System - UsedThe Dolby Laboratories A Type Model 360 is a rack mountable noise reduction system designed for use with analog audio tape recordings. The model 360's mission is clear; reduce audible internal system noise and tape hiss that was captured during the recording process. This model 360 is serial number 360103271. The unit is fully functional with working meter. Heavier scratches on the unit's top and signs of use from age. Includes CAT22 A Type cartridge.