conrad-johnson
Amplifiers
Preamplifiers
Best Known For
Amplifiers
/
Class: Tube
Used Products
91
 Available
Average Price
$10,001-$20,000
Brand Popularity
76
 of 900+
Products Listed
23
Review Count
37
Founding Year
1977
Headquarters
United States
conrad-johnson
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What's unique about the brand

Conrad-Johnson is a hifi brand known for tube amplifiers that create emotionally engaging experiences through their use of KT120 output tubes, CJD Teflon capacitors, and proprietary wide-bandwidth output transformers. Their preamps, like the PV11 and GAT Series 2, stand out for their lack of negative feedback and use of Teflon capacitors with gold-plated silver contacts, contributing to their ability to follow subtle tempo changes and deliver refined sound.

What reviewers are saying

We read all the reviews. Here's what reviewers feel most strongly about:

  • Conrad-Johnson consistently prioritizes musicality and a natural, engaging sound signature over clinical accuracy, aiming to draw listeners into the emotional core of the music.
  • They use simple circuit designs with minimal feedback and carefully selected high-quality components, such as proprietary Teflon capacitors and Vishay resistors, to achieve exceptional sonic purity.
  • Conrad-Johnson products are built to last, with a robust construction, readily available replacement tubes, and a reputation for long-term reliability, making them lasting investments.
  • The brand caters to both high-power and high-grace preferences by offering both high-wattage push-pull designs and lower-wattage Class A triode amplifiers.

Our favorite reviewer quotes:

  • "Music is neither strained nor constrained in passing through the ACT300 amps, and in listening to this wonderful amplifier group, you quickly realise just how rare that quality is in audio. Here, on the other hand, it's just effortless… the unforced delivery." (https://hifiplus.com/articles/conrad-johnson-art300-mono-power-amplifiers)
  • "The sonic experience that the CAV-45S2 delivers within the boundaries of its performance envelope is as good as it gets, period." (https://www.tonepublications.com/review/review-conrad-johnson-cav-45s2)
  • "Conrad-Johnson's CL120SE vacuum tube stereo amplifier is a truly spectacular and emotionally engaging amplifier that would be a significant part of bringing out the soul of any system. Some amplifiers let your system sing louder, others have perceptible benefits to certain frequencies, the CL120 immediately calls attention to itself (in a very good way) in allowing your system to get out of its own way and start sucking you into the experience." (https://www.enjoythemusic.com/magazine/equipment/0717/conradjohnsonClassic120SEVacuumTubeStereoAmplifierReview.htm)
  • "Throughout the midrange and lower treble, where the music really lives, I preferred the Classic Sixty-Two SE for its purity, vividness and natural instrumental tone, which grabbed my attention during every listening session. There was also a larger, better-defined soundstage that the MC75s couldn't match." (https://www.theaudiobeat.com/equipment/conradjohnsonclassicsixtytwo_se.htm)
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Products

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Lineup comparison

We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.

Conrad-Johnson Classic 62 and Classic 120

  • Positioning: The entry-level high-fidelity tube amplifiers in the Conrad-Johnson lineup.
  • Description: Offers a warm and engaging sound, featuring a simple circuit design with EL34 tubes that provide 60 watts per channel, making it ideal for small to medium-sized rooms. In comparison, the Classic 120 doubles the power output with additional tubes, offering 125 watts per channel, which is better suited for larger spaces or more demanding speakers. Both models include built-in bias indicators for tube adjustments, making them accessible for those new to tube amplifiers.

ART150 and ART300 Amplifiers

  • Positioning: Limited edition amplifiers designed for audiophiles seeking high-end performance, celebrating Conrad-Johnson's 40th anniversary.
  • Description: The ART150 uses KT150 tubes to deliver 150 watts per channel, suitable for those who desire a powerful yet refined sound. The ART300, as a mono-block amplifier, doubles the power output to 300 watts.

ART27A and ART108A Amplifiers

  • Positioning: Reference-level amplifiers, crafted for the most discerning audiophiles with limited production numbers.
  • Description: The ART27A uses KT88 tubes in a Class A triode configuration to produce 36 watts per channel, perfect for highly efficient speaker systems in intimate settings. The ART108A, with its 160 watts per channel output, is designed for larger rooms or less efficient speakers.
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Julian Shapiro
ExtremeHiFi Writer

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What are two key technological innovations or strong opinions that differ you from other brands?

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Julian Shapiro
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What are two key technological innovations or strong opinions that differ you from other brands?

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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

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What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
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