so do output transformers in a preamp add distortion or not, or is the end result a summ of all the parts and the topology design of the pre on a case by case basis? according to John atkinson, the evo 300 has a 'fat' sound in the midrange, which makes me think distortion. 0.3% in the midband would certaibly be audible and count for that coloration. so im not sure if this is just how the amp was designed, or if output transformers just add distortion. i think some of the mcintosh preamps use output transformers and they measure excellent?
