hifi engine

Manual Library / Yamaha

Yamaha A-1020

Natural Sound Stereo Integrated Amplifier (1985-86)

add a review (1 review)

Yamaha A-1020


The Yamaha A-1020 features Auto class A power output, Zero distortion rate amplification in power an eq stages, extended roll off equalizer and pure current dam, direct mc cartridge connection and selectable cartridge impedance, tone bypass switch, rec out, continuously variable loudness control and three-pair speaker support.


Power output: 125 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.005%

Damping factor: 45

Input sensitivity: 0.16mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 80dB (MC), 94dB (MM), 106dB (line)

Channel separation: 70dB (MM), 65dB (line)

Output: 150mV (line)

Dimensions: 435 x 147 x 422mm

Weight: 11.5kg


instruction/owners manual   English - YamahaMe

service manual   English - sonocorp

service manual (imp scan)  English - Ivy Caudieus

Related Catalogues


Natural Sound Audio Components

If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


 Login or register to post reviews

Reviewed Jun 06th, 2014 by cultjake

Some very nice features on a vintage IA that can be had for US $200 or less.

MC sensitivity to 0.16 microvolts, and impedance loading choices on both phono circuits. Will handle almost all cartridges with ease, lots of flexibility.

5 watts of pure Class A power, especially nice for headphone use.

Plenty of power at 125 wpc for even the most maniacal of hard rockers. Will easily drive power-hungry speakers.

The variable loudness and eq controls are excellent and useful for dialing-in frequency response from even the most difficult masterings.



This website is not affiliated with or sponsored by Yamaha. To purchase A-1020 spares or accessories, please contact the company via their website or visit an authorised retailer.