It’s got plenty of power at 200 watts per channel and the preamp is pure Class A goodness. At the very top, however, nuances get harder and harder to describe without ending with a long chain of superlatives, nitpicking the product for reasons based on the reviewer’s personal taste, or simply trying to force an artificial degree of balance and “objectivity” into the review. The quality of the Ozawa/Boston Symphony Orchestra recording on Philips was particularly striking. They can’t fix the oftenstrange musical images that emerge even in good recordings, but when the imaging is natural and detailed, the Evolution Series components preserve the size, the place, the stability, and the layers of imaging. From the KSA-100 to the present, Krell continually "pushes the envelope" of performance in our search for greater amplifier power. The most discriminating audiophiles and product reviewers have consistently recognized Krell components for standard-setting performance. With only one or two exceptions, each new design has been a step forward on a continuing journey. A comparable solid state amp to this amp at its time was the Krell KSA 80B. Microdynamics and macrodynamics are truly excellent, with as much air and natural sweep as the recording allows. Founded in 1980, Krell has earned a distinguished reputation for engineering innovation, build integrity and product excellence. This gear is good enough to tell you much more about the production problems and values in source material than about its own limits. The impact was palpable. With the best material it provides something approaching the level of detail you actually get in a live performance in a great hall. So if you come across a KSA-50 in working order for under $2,500, grab it. The K-330i is a beast of a beauty made of thick aluminium front and sides and weighing in at a hefty 23.6kg. I used the Evolution One and Two with a wide range of DVD and CD players, a range of cartridges and head amps, and in two listening rooms. List of krell amplifiers, user reviews, editorial reviews, krell amplifiers deals, used krell amplifiers - audioreview.com It was not repaired, it has no scratch, no defect.What is Included: I have all the original accessories and manuals. Back in those days (date purposely omitted), my principal source of audio equipment reviews, aside from Stereophile and The Absolute Sound, was Hi-Fi News & Record Review, which I read voraciously from cover to cover every month. Krell amplifiers have always been known for their superb stability and bass control, but have been, in my opinion, somewhat short in the department of musical finesse. The difference was in the power, because the heat and bulk of Class-A amplifiers restricted them to ratings typically below 25 watts. Krell's history is rich with breakthrough Class A amplifiers that have helped build the Krell legacy of offering the best sounding amplifiers available. The subject of this review is a $2,495 integrated amplifier by Krell, the KAV-400xi. It’s like they are channeling the sound that made Krell famous, while incorporating the changes in technology that have come to be over the last 35 years.” Speaking for myself, I have no doubt that the Evolution One and Two have some of the most detailed, quick, and powerful deep bass I have ever heard. It simply isn’t music. It smacks more of hearing damaged by too many loud concerts and listening sessions to sonic spectaculars at room-blasting levels. At the very least, it will heat a small room. Like the best Conrad-Johnson gear, the Krell Evolution series puts the third dimension back in music by providing exceptional depth. So if you come across a KSA-50 in working order for under $2,500, grab it. Its rear-panel fittings are suitably robust. I am in no doubt whatsoever that the UK market discovered Krell before the US market, a belief confirmed by its founder, Dan D’Agostino, even though Krell was, at that time, a fellow traveller of speaker-maker Apogee. Dan's oldest son, Bret D'agostino, up until the sweeping changes, was one of Krell's technical gurus. Given the past history of Krell products being able to drive low-level impedances, these figures are believable. Begin typing your search above and press return to search. But this one is perhaps the most significant Krell in a very long time. Much happened since. YOU WILL RECEIVE: 1 Solo-575 575 Watt Amplifier Featuring iBias Technology… “Krell’s history is rich with breakthrough Class A amplifiers that have helped build the Krell legacy of offering the best sounding amplifiers available. (The climax tends to sound like a series of semi collisions on a busy freeway, even when played live in a large church.) 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