Tuesday, 08 April 2008
Conrad Johnson is one of most well-known and respected names in the world of tubed audio gear. The CT6 preamplifier reviewed here is the result of trickle-down technology from the company’s famous ACT preamplifier, which itself descends from the legendary ART preamplifier. At $5,000, it is roughly a third of the price of the current ACT II preamplifier that shares its composite triode circuit design. For those of you interested in a technical description of this circuit, I recommend a look at the Conrad Johnson website, which provides more information on this circuit design.
Turning on the CT6, I was surprised by the long wait for the unit to warm up, during which no control input is accepted. I quickly learned to simply leave the unit on and muted in between a day’s listening sessions.