Rogue Audio and Audio Research Comparisons

   Recently I've purchased a Rogue ST-100 amp and enjoying quite a bit. My personal opinion is it punches way above its price point and in my opinion has a lot of the Audio Research sonic characteristics. Curious has anyone owned both Rogue and ARC and what are your thoughts?  I'm not referring to the current Ref series but the older such as REF110, REF150 and REF75SE.