Audiophilepure

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” Mr. Ahn also thoroughly stress tests each of his amps when he completes them. And with respect to testing, it should be noted: Mr. Ahn is a firm believer in measurements. His lab is full of test equipment, and he places a higher emphasis on getting solid measurable results, and prefers to leave the listening comments to the end user. This is part and parcel of his EE background”

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” After extended listening sessions, I have found that a buzz came up in one of the channels sporadically, the first time this ended up being the early signs of a drive tube failure. This gave me an opportunity to utilize the fantastic built in biasing mechanism, not automatic, but not far from it. It is easy enough that anyone could perfectly bias the tube, while giving you the confidence they are all set perfectly. I preferred this technology to any auto biasing tube amp, I just never quite trust those things The second time was right before I finished the review, but I am just making note of this for transparency, I am sure CJ would take care of you just as well as they took care of me.”

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Imaging through the SX-1000R was laterally precise to the point that on some cuts I could not only pinpoint each primary instrument accurately, but the secondary and tertiary players also occupied distinct locations across the soundfield. On the 192/24 MQA version of the Cars’ “Just What I Needed,” I could not only hear Elliot Easton’s muted rhythm guitar on the left, but also the secondary rhythm guitar that was nestled just to the right and behind Ric Ocasek’s lead vocals, in front of the drum kit in the center of the soundstage. Unlike most versions I’ve heard in which that center rhythm guitar track gets buried by the drums halfway through the cut, on this MQA version that guitar remained distinct throughout.