hifi engine

Manual Library / Pioneer

Pioneer A-91D

Stereo Integrated Amplifier (1988)

add a review add a review

Pioneer A-91D


The Pioneer A-91D has high driving capacity, suitable for low-impedance speakers.

Use of the Non-switching Circuit Type III reduces distortion for a high-quality playback sound.

The line direct circuit allows for high-fidelity reproduction of sources, with flat frequency characteristics and little tone variation, while the REC selector switch makes tape editing easy.

The unit has a built-in phono equalizer circuit, permitting use of an MC cartridge.

High-quality parts for an outstanding sound reproduction honeycomb chassis, honeycomb heat sink, large insulator, large speaker terminals, CD and Phono gold-plated input terminals, etc.


Power output: 120 watts per channel into 8Ω (stereo)

Frequency response: 1Hz to 150kHz

Total harmonic distortion: 0.003%

Damping factor: 60

Input sensitivity: 0.25mV (MC), 2mV (MM), 150mV (line)

Signal to noise ratio: 83dB (MC), 95dB (MM), 109dB (line)

Output: 150mV (line)

Digital inputs: coaxial, optical

Dimensions: 457 x 475 x 173mm

Weight: 29.2kg

Year: 1987


service manual   English -

instruction/owners manual   English -

Related Catalogues

Elite Hi-Fi 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.


This website is not affiliated with or sponsored by Pioneer. To purchase A-91D spares or accessories, please contact the company via their website or visit an authorised retailer.