Yes Ltd. models are distinguished by numbers, such as ec256ec40 1ec 1000, mh 100 1. The more common models, the more expensive they are. 1000 will have the word Delux in the piano head. A special signature like Garyholt is gh600Kirk, but the price is kh602. 1000 series and signature models are made in Korea, while others are made in Indonesia. They may have changed now, but I don't know much about them The piano is really easy to use and much thinner than the traditional LP model.