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Conrad Johnson amplifiers

The conrad-johnson design team is committed to adapting the advances from our state-of-the-art pursuits to more affordable offerings accessible to a wider range of music lovers.

This resolve is clearly evident in our new range of Classic amplifiers. Borrowing heavily on the technology of our flagship ART amplifier, the Classic amplifiers preserve the distinctive tonal character of individual instruments and voices, with each clearly located within the overall acoustical environment of the original recording. Musical transients are reproduced with realistic impact, but without artificial enhancement. Like their more costly siblings, the Classic amplifiers capture the emotional impact of the live event, never getting between the listener and the musical performance.

ConradJohnsonClassic120
Classic
120

The base model Classic amplifiers offer an ideal introduction to the joys of modern tube amplifiers, while the ease of use, low maintenance costs, and reliability.

Those who wish to take the experience a step further will want to investigate the upgraded Classic One-Twenty SE amplifier. These special edition versions upgrade the output tubes to KT120s and incorporate CJD Teflon Capacitors and ultra high-performance metal foil resistors in strategic applications in the circuit. CL120 &120SE: 125 Watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD.
ConradJohnson
Classic
62

There really is no mystery to our chosen path to outstanding musical performance: best results come from simple circuits executed with quality parts.

Those who wish to take the experience a step further will want to investigate the upgraded Classic Sixty-Two SE amplifier. These special edition versions upgrade the output tubes to KT120s and incorporate CJD Teflon Capacitors and ultra high-performance metal foil resistors in strategic applications in the circuit. CL62 & 62SE: 60 Watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD.

ConradJohnsonMF2550
MF
2550

MF2550 Solid State Amplifier. At conrad-johnson we have a simple formula for achieving highly accurate, highly musical amplifiers:

Straight-forward, simple circuits designed for linear operation without excessive loop inverting feedback. Exceptional component parts selected for their ability to provide uncolored accuracy in music reproduction.
250 Watts per channel from 20 Hz to 20 KHz at no more than 1.0% THD or IMD.

ConradJohnsonCAV45
CAV
45

The CAV 45 control amplifier represents a distinctly different approach to high-performance home audio. In many ways it is the ultimate embodiment of our design philosophy that simple circuits yield best results.

Similar in function to an integrated amplifier, a control amplifier offers the significant potential improvement of eliminating extra connections, external cabling, and inter-device connection considerations that limit conventional audio systems. But the control amplifier also eliminates an entire stage of audio circuitry and its inherent colorations. 45 watts per channel RMS both channels driven into 4 ohms from 30Hz to 15kHz at no more than 1.5% total harmonic or intermodulation distortion.