Sure Rayden1972, whereas the 110 is ultimately more seductive in the midrange and lower treble on some material, the 220 retains the dimensionality and enough of the 110's traits here. Inevitably, the 110 (tube amps in geberal) soften transients a bit too much and aren't the last word in bass control. A certain tube film can permeate the soundstage on well recorded ensemble material. Microdynamics are a tad more engaging on some material thru the 110 but it is system dependant to some degree. The 220 gives me what I've always enjoyed about the best tube and solid state designs...dimensionality instead of paper cut outs and fixed images, roundness without bloat or hyper inflation of images, tonal accuracy without listening fatigue, warmth without haze or grain. Macrodynamics are explosive, bass expansive and controlled, treble pure and extended, midrange neutral but realistic and alive with action!! By the way I have had no quirks, noise, hums or problems of any kind from my HD 220 or ref 3...it is absolutely dead quiet when no source material is going thru the system. The fans on the HD 220 keep it at a nice warm but never hot state...they do make some residual noise on soft passages, but my brain has already begun to filter it out during my listening session. If the unit is placed in an open setting, the fan noise is almost inaudible...I have a custom cabinet setup so the noise is amplified a bit! When I add the CD 7 this fall I believe I will have just about all of the virtues of tubes without the headaches and drawbacks of output tubes.