I've tried numerous lower priced tube amps such as Golden Tube Audio, Dynaco, Jolida, and Cary Rocket 88. All were pretty good, but each has faults, as can be expected at these price levels. I also have several years listening experience with various Adcom amps, mostly the 555. I think that the overall best bang for the buck comes from McCormack. I owned th DNA .5 Dlx for about a year, and then bought a DNA 1.0 Dlx which I used for about 11 years. Outstanding products IMO. I am currently using a Wyred 4 Sound ST-500, which sounds great, but I've only had it a week so I need more time with it. Happy listening!