hifi engine

Manual Library / Classe Audio

Classe Audio CA-400

Power Amplifier

add a review (1 review)

Classe Audio CA-400


Power output: 400 watts per channel into 8Ω (stereo), 1400W into 8Ω (mono)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.004%

Gain: 29.02 dB

Input sensitivity: 1.9V

Signal to noise ratio: 137dB

Speaker load impedance: 4Ω (minimum)

Dimensions: 19 x 23 x 9.5 inches

Weight: 120lbs


service manual   English - Ivy Caudieus

instruction/owners manual   English - Jeepo65

brochure   English - Jeepo65

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 May 09th, 2016 by tutor turtle

Massively difficult to service. All outputs transistors (some 16 pairs) are soldered in. The bias resistors you need to sample to set the bias are buried under the output array, just inviting you to short-out the output circuit. The speaker protection circuit is so deeply buried in the assembly, I don't see how to access it while the power is on. Last, no where in this manual is a schematic of it or what it's monitoring. I'll update as I make headway, but I'm not encouraged, as I have a CA-200 (it's baby brother) in with the same problem.



This website is not affiliated with or sponsored by Classe Audio. To purchase CA-400 spares or accessories, please contact the company via their website or visit an authorised retailer.