hifi engine

Manual Library / Threshold Audio

Threshold Audio 4000

Stereo Power Amplifier (1979)

add a review add a review

Threshold Audio 4000


Power output: 200 watts per channel into 8Ω (stereo), 700W (mono)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.05%

Damping factor: 300

Gain: 27 dB

Dimensions: 19 x 6.94 x 17.25 inches

Weight: 83lbs

Year: 1979


Related Catalogues


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 Threshold Audio. To purchase 4000 spares or accessories, please contact the company via their website or visit an authorised retailer.