Don't buy Kurzweil products. As a long time user of their equipment, I've had multiple electronic failures in the past two years and am currently involved in a battle with the company. They refuse to adequately support their products which show a significant shortfall in quality and reliability. Sweetwater has cut back their supply of Kurzweil due to these problems and now only sells them as a special order product rather than stocking them. They have cost me serious money in repairs and loss of productivity. I think they may be heading into bankruptcy.