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Noise Reduction Unit (1972)

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The Teac AN-180 is a noise reduction unit employing the Dolby B system.

The unit comprises independent playback, record, meter amplifier and oscillator circuits, all utilising such new solid state circuit elements as ICs and FETs.

Designed to assure years of trouble free operation, the unit requires practically no recalibration except after the replacement of components.

The manual describes, mainly for the benefit of service engineers, the specifications, adjustment and testing procedures, trouble shooting and circuit diagrams of the AN-180.


Channels: 2

Input sensitivity: 100mV

Output level: 1V

Noise reduction system: dolby

S/N improvement: 10dB (dolby)

Frequency response: 20Hz to 15kHz

Signal to noise ratio: 65dB

Total harmonic distortion: 3%

Channel separation: 50dB

Dimensions: 140 x 410 x 325mm

Weight: 7kg


service manual   English - Nucciopan

instruction/owners manual   English - skysailor

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Reviewed Apr 05th, 2016 by laurencerose

I purchased this unit along with an Akai GX365D over 40 years ago. It performed exceedingly well. It has separate circuits for both record and playback. It is a great looking unit and looks good and performs well in any high quality system any system.



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