The Krell 402e has received rave reviews from veteran reviewers Martin Colloms in the HiFiCritic, from Alan Sircom in The Absolute Sound, from Andrew Robinson in Home Theater Review who purchased a 402e for mastering recordings and for personal listening, and from What HiFi. I have been using this amp to power Martin Logan CLX’s which are extremely demanding and revealing in an 18 x 30 ft room with excellent sound quality and no dynamic limitations. These amps are extremely neutral tonally and very revealing as well as powerful. The 402e was manufactured from 2009 to 2013; this unit was manufactured in March, 2012. Due to a change in employment, I stored it for just short of two years and so it has only been used for 4 years. I am the second owner having purchased it from a dealer. According to Krell it has not been serviced. I have had a number of excellent amps, Pass XA100.5 monos, Audio Research Ref 150, a Rowland 625 series 2 amplifier a number of previous generation Krell and Levinson amplifiers as well as Parasound JC1’s; I prefer the 402e to these. The 402e has been used to drive Martin Logans, particularly the CLX, as well as driving the Magnepan 3.7i’s. While I have not heard every amplifier available, for the asking price I do not think that you can find a better amplifier particularly if you have a difficult to drive speaker, be it a panel speaker - think Sound Labs, Martin Logan, Apogee, Magnepan, or a dynamic speakers such as Revel Salon and Studio, large Thiel speakers as well as others. The 402e can handle low impedance complex loads producing 400 watts into 8 ohms, 800 watts into 4 ohms and 1600 watts into a 2 ohm load (see Krell website for full specifications). PayPal fees and shipping are the responsibility of the buyer. If you are in the Nashville area, contact me for an audition if interested.