Mr. C
27-12-2025, 18:13
We have a very fine example of this high regarded Conrad Johnson CA200 integrated amplifier, not that many made it to the UK, however we have one of these quite superb integrated amplifers for sale. In excellent condition. We have completely overhauled this unit, a total recap, new stand by transformer etc. Full check over and benchmark. A rather cracking amplifier. New cost £7000
Asking £3,475ono
The Conrad Johnson CA200 is a solid-state control amplifier (not a traditional integrated amp) delivering 185 watts per channel into 8 ohms (300W into 4 ohms), featuring a zero-feedback, bipolar transistor design derived from the Premier 350, offering accurate, powerful sound, 5 line inputs, processor loops, and a unity-gain "Theater" loop, with a frequency response of 20Hz-20kHz (±0.5dB).
Key Specifications:
Power Output: 185 watts per channel (8 ohms), 300 watts per channel (4 ohms).
Frequency Response: 20Hz – 20kHz, +0, -.5dB.
Distortion: No more than 1% THD/IM distortion, both channels driven, 30Hz-15kHz.
Input Sensitivity: 1.0 volts for full power.
Hum & Noise: 100dB below full power.
Input Impedance: 100K ohms.
Circuit Design: Zero-feedback, single voltage gain stage with a high-current buffer/output stage using bipolar transistors.
Review One (https://www.audioresurgence.com/.../review-conrad-johnson...)
Review Two (https://www.theabsolutesound.com/.../conrad-johnson.../)
Contact Information (https://coherent-systems.co.uk/contact-us/)
Coherent Systems Customer Feedback (https://www.google.com/search?client=firefox-b-d&q=coherent+systems#lrd=0x487668bff37d304f:0x7a56d5 71327653fc,1)
https://coherent-systems.co.uk/wp-content/uploads/2025/12/CJCS200b1.jpg
https://coherent-systems.co.uk/wp-content/uploads/2025/12/CJCA200b3.jpg
Conrad Johnson CA200 Video (https://www.dropbox.com/scl/fi/p8jji3345koa15aqd8nni/20251221_164020.mp4?rlkey=0ak4v3jgh9zd2871z83n3py5 x&st=qokqkilu&dl=0)
Asking £3,475ono
The Conrad Johnson CA200 is a solid-state control amplifier (not a traditional integrated amp) delivering 185 watts per channel into 8 ohms (300W into 4 ohms), featuring a zero-feedback, bipolar transistor design derived from the Premier 350, offering accurate, powerful sound, 5 line inputs, processor loops, and a unity-gain "Theater" loop, with a frequency response of 20Hz-20kHz (±0.5dB).
Key Specifications:
Power Output: 185 watts per channel (8 ohms), 300 watts per channel (4 ohms).
Frequency Response: 20Hz – 20kHz, +0, -.5dB.
Distortion: No more than 1% THD/IM distortion, both channels driven, 30Hz-15kHz.
Input Sensitivity: 1.0 volts for full power.
Hum & Noise: 100dB below full power.
Input Impedance: 100K ohms.
Circuit Design: Zero-feedback, single voltage gain stage with a high-current buffer/output stage using bipolar transistors.
Review One (https://www.audioresurgence.com/.../review-conrad-johnson...)
Review Two (https://www.theabsolutesound.com/.../conrad-johnson.../)
Contact Information (https://coherent-systems.co.uk/contact-us/)
Coherent Systems Customer Feedback (https://www.google.com/search?client=firefox-b-d&q=coherent+systems#lrd=0x487668bff37d304f:0x7a56d5 71327653fc,1)
https://coherent-systems.co.uk/wp-content/uploads/2025/12/CJCS200b1.jpg
https://coherent-systems.co.uk/wp-content/uploads/2025/12/CJCA200b3.jpg
Conrad Johnson CA200 Video (https://www.dropbox.com/scl/fi/p8jji3345koa15aqd8nni/20251221_164020.mp4?rlkey=0ak4v3jgh9zd2871z83n3py5 x&st=qokqkilu&dl=0)