The 581 should sound better since it is newer and uses better digital parts although the transport mechanism is suspect to some.The current converters are a major upgrade in the 581SE and are a must if you are considering this player.I don't think a plastic remote affects the sound but image is everything in this game.I am not femilar with the blurring issue on the 861 but feel that a GNSC is a major upgrade to all Wadia units and a must to get the very best out of it.The older units are a good buy and with the GNsc is a steal when compared to buying new ( 581se with GNSC is around 13,000.00).Hope this helps and good hunting Dennis
