From A4Less site.
"Accessories4less is a factory authorized reseller for Yamaha Factory refurbished products."
Bill
From what I can see, the A-S2100 has (4) 22000 microfarads power caps and a fully balanced design while the A-S1100 has (4) 18000 microfarads power caps and is unbalanced. Not much different between the two from what I can tell. http://www.6moons.com/audioreviews2/yamaha3/1.html Bill |