I am trying to get info on a sounds system that is simple ,yet has a good quality sound for G scale Bachman trains, one ( Barnum Baily Circus train) the other ( Bachman Mountaineer train) I would like to find one that can control two trains at once.  If it is too expensive I will settle for one train operation.  Dose any one have suggestions what brand , I want it to control speed and sounds out of one box .