Different Version of YBA YA201A

Does anyone know if YBA YA201A s/n 06A053-PL is the version that has pre-out or not? Or where can I find out about such information? Thanks for your input.
I would love to help, but i only have info about the YBA YA201.
Actually, mine is YBA YA201 as well. I understand there are at least two versions, older one without pre-out and Tape loop out, and the newer one that have both additionals. How about yours? What is your S/N?