Sheadlee, which Audio Research amps have you compared them to? I have heard the Stratos because I recommended them to a neighbor who did not have alot to spend. For the money they have no rival but I respectfiully disagree that they blow away any of the ARC tube amps. Have you compared them to any of the VT series amps? If so which ones? I personally have listened to the VT100MkII and MKiii and the VT200 and while the stratos are great for the price they are simply IMHO, not in the same league.