Advent model 100A
Noise Reduction Unit (1972)
The Advent Model 100A Noise Reduction Unit is a convenient control center designed to take full advantage of the ever increasing use of the famous B-Type Dolby System audio noise reduction.
The widespread use of the Dolby System with home tape recorders, the rapidly growing catalogue of prerecorded Dolby processed cassettes, and the application of the Dolby System to FM broadcasting have all contributed to our incorporating into the Model 100A a degree of flexibility found in no other noise reduction unit or recorder with Dolby circuitry built-in.
In addition, the needs of those interested in serious live recording, so often a secondary consideration in equipment designed for consumer use, have been of equally important concern in the design of the Model 100A and its accessory microphone preamplifier, the MPR-1.
Input sensitivity: 100mV
Output level: 1V
Noise reduction system: dolby
S/N improvement: 10dB (dolby)
Dynamic range: 85dB
Frequency response: 20Hz to 20kHz
Signal to noise ratio: 70dB
Total harmonic distortion: 0.1%
Dimensions: 11-3/4 x 4-1/8 x 7-1/2 inches
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