hifi engine

Manual Library / Threshold Audio

Threshold Audio 800A

Class-A Stereo Power Amplifier

add a review add a review

Threshold Audio 800A


The Threshold 800A class A stereo power amplifier is the most advanced audio amplifier design available today and is the result of our resolve to apply every technical resource at our command toward making the ultra high power, solid state class-A amplifier a reality.

Class-A amplification has long been recognised as the state-of-the-art audio amplifier design; but until now it's realisation in transistor technology has been unable to achieve the magnitude of power expected in today's finest equipment and demanded by tomorrow's more exacting program sources.

Nevertheless, these limited capability class-A amplifiers continue to receive attention from those dedicated audiophiles who demand extraordinary performance and uncompromising accuracy notwithstanding their enormous cost and low efficiency.


Power output: 200 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.1%

Damping factor: 1000

Dimensions: 19 x 8-3/4 x 16-13/16 inches

Weight: 90lbs



This website is not affiliated with or sponsored by Threshold Audio. To purchase 800A spares or accessories, please contact the company via their website or visit an authorised retailer.