LOL @sls883
All I know is the X26 has always been the hottest running component in my equipment line-up. Twice as hot as my Parasound Halo A21+. First 6 watts of pure A. 2x500 watts @4 ohms. Let's just say, over time, it's uncomfortably hot. However I was able to minimize the heat by elevating it with extra footers raising it about 3" off the rack. Highly recommended.